I NE ~ii~CCCT'iioo~~~6T'ii'ii"~ F.ijij d'd'd'M-AAAFiI
OUTL
4 M 0 1 138
OF THR E.F-P Fi-AS. I PROTECTED D R I P PROOF TYPE
MOTOR S. HEATERbTHERMO. 5 GLAND NO. 4 5 6 x 2 NO. 1 5 b CABLE TPY-70x2 L-MPY-4 TERMINAL JIS C 2805R JIS C 2 8 0 5 R v z
CONNECTION DIAGRAM
y$ U*X
n
D R A W I N G NO.
REV
I@]
3RD ANGLE PROJECTION
'
jW HI
H2
TH1 THzTHI
U1
0 7
0
m
w E Y
i= R
'n
uvw
S E C T I O N A-A
U V W
I
S E C T I O N B-B
KEYgKEYWAYS J I S 81 301 KEYWAY TOLERANCE N 9
3RD ANGLE P R O J E C T I O N THREE PHASE I N D U C T I O N MOTOR FOR M A R I N E TOTALLY ENCLOSED F A N COOLED SPLASH p p
64. 5 k g
-
GLAND No. 20b CABLE TPYC-2.5 (TF'YC-2) TERMINAL J I S C 2805R
R O T A T l ON @284
264 d
I
260
17 5
>
K E Y L K E Y W A Y S J I S 81 301 KEYWAY TOLERANCE NS
tarns+ D R A W I N G
N
4 M O 1 1 LC6 ..................................................
PRESENT TO
RE
-
NP
I NAME PLATE
I CIRCUIT BREAKER NFBh I CIRCUIT BREAKER 6 1 AMMETER
NFBD
W
E LAMP
GREEN LAMP
1 I
1
I
ORANGE LAMP
PB3 LPB4, TSI-5
NFBp
I SELECT SWITCH (WITH, KEY) I I
1
ILLUMINATED PUSH BUlTON SWITCH TOGGLE SWITCH
CP-1
SOURCE (CRANE)
CP2
SOURCE (LIGHT)
CP-3
MOTOR OVER LOAD
CP-4
RUNNING
CP-5
SOURCE
CP-6
ROPE SLACK (LAMP RESET)
CP-7
OIL TEMP. HIGH & LOW
CP-8 CP-9
LIMITING DIFF. ROPE & LUFF. LOW I IMlT BY-PASS
CP-10
SPACE HETER
CP-11
I PROJECTOR
CP-12
ROOM LIGHT
CP-13
I LOW OIL LEVEL I
CP-15
LUFF. EM'CY LIMIT (I AMP R F S m ROOM FAN
CP-16
ROOM HEATER
CP-14
.
DPC..IS
co No.
I
3RD ANGLE PROJECTION
E-320 X.X,dh E-281 X3Adh 3' g,,2y,,zk
A Sep. 26 '95
JOB No.
IHI
X I
I
I
I
I
&'-fg&&i L ! !
OUTLINE OF CONTACTOR BOX
IST ANGLE
June. 9 '98 Jan. 29 '98 Oct . 2 '96
I
, k ,&;,& DRAWN DESIGNED CHECKED APPROVM
E-477 DESCRIPTION,
DATE
'1
CARD PLATE
MARK TABLE
I
I
I
ENGINEERING DEPARTMENT
STANDARD DRAWING No.
F3-9221
/aN//
I lshikawaiirna-l-larirna Heavy Industries Co., Ltd.
-
PB1,2
MARK TABLE PUSH BUTTON SWITCH
1
SWITCH BOX I
IHI
J O B No.
NAGOYA WORKS
D.A.INO
STANDARD NO.
'REV.
F4-7773
I I
/
CONNECTION
DRY S E L F -COOLED TRANSFORMER PHASE AND FREQUENCY CAPACITY PRIMARY VOLTAGE SECONDARY VOLTAGE SECONDARY CURRENT RATED LOAD INSULATION CLASS TOTAL WEIGHT
TERMINAL MARK
*----*
COVER
L
d ANGLE PROJECTIO
CONTINUOUS RATING B
ABOUT 38kg
SO 100 110 115
7
J
3-O- A
IHI DWG No. F4-12853
FROM COIL
PO 440
16 50/60Hz 3kVA 440V F115 FllO RlOOV
e
CHUn ELE- ..--
CABLE CON. ( # 2 0 )
,. .,
C O . L T D . ~FI I I I
\/TEW
I
,
SPECIFICATION $26018
2-EYEBOLTS (YIO)
AC440V 3P 300A MASS
:
APPROX.
+
lE(B0DY EARTH) 75kg
CRANE SIDE
SHIP S I D E
C A B L E G L A N D FOR S H I P S I D E Cf.SPEC O F E L E C T R I C EQUIPMENT
:t 'rum O f f parer before
' D O nu1 aperate rltn door 0TOCLCli"e Cover
LABEL 0CAUTION (ROTATING PARTS)
"PI,.
CAUTIONLABEL (VOLTAGE)
(5,CAUTION LABEL , \" (HIGH PLACE) -iCAUTION LABEL/ (COOLER OUCT) *ONLY DOOR TYPE
COOLER DUCT
-*
CAUTION LABEL (VOLTAGE1
?~-YSCDII:U~-~-~~I~&~G~II~;~. BEFORE STARTING . BE SURE TO OPEN THE DOOR OF COOLER DUCT 7~-7ZFHTBu7-?-97lt4~.1;t. AFTER OPERATING CLOSE THE DOOR OF COOLER DUCT
1-3 RECOMMENDATION TO THE CONTRACT OF MAINTENANCE SERVICE SYSTEM
By the recent rapid progress of each kind of machinery and also the rationalization for ship equipment, the trends is toward reduction of the number of crew per ship. T h s also entails less labor for maintenance and in the hfficulty in understanding for proceehng with the full maintenance of every equipment by means of highly developed machinery. Based on the above circumstance, IHI has the "MAINTENANCE SERVICE SYSTEM for IHI Hydraulic Deck Machinery incluhng deck cranes, winches and windlasses, for the user's convenience rollowing the warranty period. This system is to be contracted between the user and IHI beforehand, and the outline of it is as follows.
1. The annual contact of maintenance service system Uncler the contract with the previously-agreed rated charge, IHI will visit the ship twice a year for checking and acljusting of the hydraulic deck machinery under the check seats and then submit the maintenance report. If repair ent,ailing heavy duty is foreseen a t that checking produce, the above report will indicate the detailed repairing plan for the next occasion.The visiting date is to be previously deter-mined by the user, but one time is recommencled a t the time before the anni~aldry clocking of ship, in orcler to find out the detailed items to be repaired during dry docking. ( The service charge [or overhauling is not, incluclecl in this contract and it, if necessary, is in accordance wit,h t,he next it,em, ( 2 ). ) In case that t,his checking reveals need for repair, then the repair work and the part,s supply can bc clone under the user's order with a separate charge.
2 . The contact of overhaul service system Expect for the above item, ( 1 ), ths service system can be separately acceptable under the user's pre-order or from the conclusion of the above checlung. This system is intended for overhaul of hydraulic pumps and motors and the consumed parts inside them are newly replaced. The charge for this system is calc~~lated so that the basic charge beforehand agrees with the user plus the liquidated charges caused for the repair work. Please ask IHI SERVICE NETWORK for the details on the above "MAINTENANCE SERVICE SYSTEM.
PART 2
PART
OPERATION
2-1
BASIC ARRANGEMENT OF MACHINERY ROOM
2-2
BASIC ARRANGEMENT OF OPERATOR'S CABIN
2-3
PRELIMINARY KNOWLEDGE
2-4
BASIC CONTROL & EXPLANATION OF MOTION
2-5
AFTER OPERATION
2-6
SAFETY DEVICE
2-7
LOAD LOWERING PROCEDURE IN CASE OF POWER FAILURE
2-1 BASIC ARRANGEMENT OF MACHINERY ROOM
/
/ LADDER (IN CASE OFINTERNAL ACCESS TYPE)
HOISTING
&
LUFFING WINCH-
2-2 BASIC ARRANGEMENT OF OPERATOR'S CABIN
2-3 PRELIMINARY KNOWLEDGE
Please confirm each item befor operation as follows.
1 . Check h y d r a d l c oil level. I
/i\
CAUTION......Confirrn that the hydraulic oil is filled to the "proper" level of the level gauge with oil tank. Supply the hydraulic oil if the oil level IS lower than proper level.
Location : in the machinery room An electrical low-level switch is equlpped too The hyd. pump may be darnaqed cause by mixed air with a little hyd. oil
in oil tank.
2 . Check lubricating oil level, NOTICE,.,..Confirrn that the enclosed gear oi1.i~filled to the "pr.bp&r";kiie)raf~theilevel gauge with each reduction gear. Supply the gear oil if the oil level is lower than propi?r.'leVd
Location : in the machinery room 1)Reduction gear for slewing. 2) Reduction gear for hoisting. (in case of exceeding and including 20 ton type) 3) Reduction geai for luffing (it may not fitted according to the cran type.) The reduction qear may be damaqed due to a little qear
011.
3 . Supply grease, spread gear oil N O T I C E - S u p p l y grease or gear oil according to "CHART FOR GREASE AND GEAR OIL SUPPLY(PART 5-2).
Lochltion : 1) Refer to "CHART FOR GREASE & GEAR O[L SUPPLY in PAIZT 5-2 2) Internal gear of slewing ring Wire ropes and tleacl-eye thimble.
CHART FOR GREASE AND GEAR OIL SUPPLY GREASE No. 1
2 3
I Slewing bearing 1 Blank 1 Hoisting and l f i g bearing
Refer to the CHART on crane body for detail, because grease and oil supply point may differ according to crane type.
4 . Confirm wire ropes and loose gears. I
A
CAUTION..-...Check the next point before operation. Location : 1) Wire rope, dead.eye thimble 2) Loose gearsbook, shackle,eyebolt,beam,etc.) 3) Rope sheave 4) Clearance between under part of trunnion and joggling part of eyebolt Replace the new one when check result is under judgment.
A m
......Do not use under the following conditions, and replace if necessary.
1. When the wire rope is deformity,kinks and breaks. 2. When the worn-out portion exceeds 5% of the original sectional area. (Do not repair by means of welding.) 3. When the surface is cracked. (Do not repair by means of welding.) 4. The hook whose opening does not close. 5. When the clearance of above 4) exceed 1-2mm. In this case,comfirm that set s c r e a ( 3 sets) for nut@. When set screw is loosening, please tighten set screw and carry out screw-head hitting.(corking) May cause a n accident resulting in injury o r death d u e to breaking down of wire rope.
o
Crack
Q=J
B. o Wear
o
and t e a r
a
Kink
o
Wiie breaks
D c f a r m a c ion
M
5 . Open the cooler duct's door on the rear side of the crane's machinery room. OPTION (only cooler duct door type)
..
(1) Remove the toggle pin from stopper (2) h w e r the open-close lever.
(3) Attach the toggle pin to stopper.
A
CAUTION--..-Beforestarting , be sure to open the door of cooler duct. After operating , close the door of cooler duct.
'\
STOPPER
WITH
OPEN DURING OPERATION
,."'
TOGGLE PN I
'
OPEN-CLOSE \LEVER
CLOSE WHILE NAVIGATION
6 . Check to see if the tlmer is set at the value specified in the section entitled "Electric" in the hushed plan.
CAUTION..-..-Maycause a defective action so that the timer is not set at the value specified. Location : in the contactor box at the rear of cabin.
7 . Confirm that control handles are in the neutral position before startmg.
/i\ CAUTION----Electricmotor cannot starting,
if the control handles are not in the neutral position. Location : in the cabin.
I
2-4 BASIC CONTROL & EXPLANATION OF MOTION
AKter finishing preparation, start to operate the deck crane as Eollows ;
1. Turn on t h e circuit breakersQ and@. Then the white lamp lights up. 2 . In case that the crane i s started at jib rest position, turn the by-pass key@ to by-pass.
/i\
NOTICE......I . When the control handle is not in the neutral position, or oil in the tank is not sufficient, the interlock switch functions to prevent the electric motor from activation, even if the start button switch is depressed. 2. In case of starting up working zone, the by-pass switch position shall remain normal. 3. Depress the start button switch for the electric motor after depressing the start button switch and stop button switch alternatkly several times quickly.
[PRECAUTION FOR OPERATION AT LOW TEMPERATURE
I
(1) If t h e working o i l temperature is +5 % o r less, st.art and stop t h e motor several times manually as shown below before actually st.art,ing the hyclraulic pump.
i 0.5s
1s STOP
0.5s
pZTl
1s STOP
1
0.5s
RUN
1s
0.5s
1s
1 STOP piiqSTOP
0.5s
1s ~ontinuousRUN STOP
. NOTICE....-If the weather is expected to be cold, pre-heat in the crane's machine room with a cargo light or heater. If the pumps are started up when the oil temperature is very low and viscosity is hiqh durinq the winter (+5 ' C or lower), the pump may be damaqed quickly.
I
(2) Preparation of hydraulic motor
When temperature of system oil became to allowable level for operation (above +5"C) after warming up of hydraulic pump and hydraulic circuit, t h e operation of each hydraulic motor should be carried out for preparation by following method. I
/~\NoTIcE......I.
Run the hydraulic motor (hoisting, luffing and slewing) toward normal and/or reverse rotation slowly (less than about 5 rpm) in about 2 or 3 seconds for more than 5 times. 2. And, after brief stop of the hydraulic motor for I minute, each motion should be carried out about several times. The above operations have to be carried out independently without load to each motion.
T h e hyd. motor may be damaged. 4 . Up the jib to the working zone slowly. 5 . Turn the by-pass key to normal when t h e jib is up to the working zone. 6 . The crane movements a n d handle operation are as
shown left figure.
- I n normal condition, motions such a s hoisting, luffing,
-
and slewing can be stopped by oil blocking i n the hydraulic motor a n d t h e mechanical automatic hydraulicbrake (brake applied with a spring and brake released with oil pressure) when the operation lever i s returned to the neutral position.
NOTICE------The farther the handle is tilted, the faster the speed becomes. Get the knack for feeling the relation of the handle tilting angle and speed.
/i\ NOTICE......Hoisting up and down, jib up and down, slewing left and right.
Make sure that the crane stops at marked points (limit position ) at each operation with no load. The red lamp lights up when the limit switch is in use.
8. Don't hoist the load slantingly.
Fig. A
/i\=...-l.
/i\ ~
~
Fig.
8
Fig. C
Fig.
D
F
i
E
Don't hoist the load slantingly,if the load is hoisted slantingly from the inside of the crane(Fig.A) or in the condition shown in Fig.B, the jib will jump and run into collision to the buffer. 2. If the load is hoisted diagonaly as shown in Fig.C, the jib stress will increase, resulting in damage. 3. If the load is hoisted slantingly from foward(Fig.D) or in the condition shown in.:.. Fig.E, the luffing wire tension will increase, resultingin breakage.
N O T I C E - - 1 . When an operator leaves the operator's cabin, be sure to stop the electric motor and see that the position the handle are in the neutral; then at the handle stopper. 2. To make an emergency stop, the electric motor stops when the stop push button is depressed. It will stop crane operation regardless of the handle position. 3. The list of ship on cargo handling is written in the specification.
C A U T I O N - 7 . Please confirm that the by-pass switch is returned to the "Neutral" side before loading. 2. The improper use of the by-pas switch by the stevedore causes the accident.. So; the crew of this vessel must keep the key of this switch.
In case of qrab accessary fitted crane. (Refer to the finished plan) 9. Before and after the grab cargo handling, the cabtyre cable and tug wire shall be showed as follows. (1) CABNRE CABLE
(a) Reeling out the cabtyre cable by reverse switch. (b) Loosen the receptacle fitting piece, and disconnect the female plug &om fitting piece. (c) Loosen the cabtyre fitting piece, and dmonnect the cabtyre cable &om fitting piece. (d)Sliding the wire-net to "Use position" as shown in fig.2.
.
d
flF abt. lOmm
A
NOTICE..... In case of connect and disconnect the cabtyre cable. keep to the above method. The electric wire in the cable ~ l u qmav be damaaed . --
(2)TUG WIRE
-
2-5 AFTER OPERATION BY PASS
-f@-
After operation of the crane, please rested the jib as follows: 1 . Turn the crane to the dwection of the jib rest stand.
"
2 . Turn the by-pass key clockwise and operate the jib slowly on the rest stand.
BY PASS KEY A 4 A P f
-
BY.PASS SWITCH (WITH K A ~
3 . After the jib is rested, the hook block should be fixed by lashing wire on the deck.
ce-rn)
A - ~ , ~ X P ~ Y F
I
/i\ CAUTlON......Atship'soperation by mean of by-pass key, operate the crane carefully by the crew. In this case, never lift the cargo. After the jib is lested, loosen the luffing rope so that it is not tensed.
4 . See that the position of the handles are in neutral and set
the handle stopper. 5 . Turn off the circuit breaker of the crane @ and turn the
white lamp off. 6 . Always keep switch "ON" the circuit breaker of the light@,
the toggle switch of space heater and the source i n the engine room without fail for expect maintenance.
~
~
/i\ N O T l C E T hfrom e r e is the care that the source of the space heater' is supplied separately the main source. So refer to the skeleton diagram in the finished plan. 7 . Close the door of cooler duct.(only door type)
8 . Check brake linings. 9 . Replenish grease and lubricant according t o PART.5-2, if
necessary. 10. Close and clamp each door (operator' s cabin; side scuttle,
crane housing) lest rain or sea water should leak int,o the housing and cabin.
-
11. The jib should be fixed with the lashing piece and lashing rope lest it should swing during navigation in rough seas
I
2-6 SAFETY DEVICES The deck crane is equipped with each safety devices in order to carry out cargo hanclling operation safely. Each safety device is as follows:
/i\ NOTICE-...Confirm
that the each safety device is act before operation.
May forecast person iniury and also damages to the equipment caused by defective action of safety device.
1 . TYPE SAFETY DEVICES
( 1) Each motion limit switches
1 ) Upper and lower limits for hoisting CH33H,H33Ll 2 ) Jib max. and min. angle and rest position.
CL33U,L33D,L33R,L33M3 (In case of double rating) 3 ) Differential h i t between luffing and hoisting
CD333 4 ) Slewing limit CS33L,S33Rl
(This is not equipped for 360" full slewing-type crane.) ( 2 ) Slack limit switch for hoisting rope CWS333 ( 3 ) Interlock switch for control handles. ( 4 ) Overload protector for hydraulic parts(re1ief valve) ( 5 ) Thermostat for oil cooler
T
( 6 ) Over-current protector for induction motor
( 7 ) Low level switch for oil tank
(This is equipped when the level gauge is not installed in the operator's cabin.) ( 8 ) The limit switches for jib angle and slewing angle
which restrict the operation range are installed besides the above in some cases.
I
2 . HOIST, LUFF AND DIFFERENTIAL LlMlT [H33,L33,D33] This limit box is located a t the side of winch i n the machinery room. These limit switches are providecl in order to regulate the winding of ropes on hoisting and luffing drum at hoisting upperllower positions, max./min. outreach and jib's rest. The hfferential limit switch is provided in order to keep a minimum distance the jib top and hook block, irrespective of the angle of the jib. I
1
/i\ NOTICE----..Checkto see
if the each limit switches [H33,L33,033 ] are set at t h e position specified in the finished plan.
3 . SLEWING LlMlT [ S33L,S33R)
The slewing limit is proviclecl to prevent the crane from running into an obstacle. (It is not equipped for 36O0full slewing crane.) NOTICE----..Checkto see lf the each limit switches [S33L,S33R ] are set at the position specified in the finished plan.
I
4 . SLACK LlMlT FOR HOISTING ROPE [ WS331
The slack limit switch for hoisting rope is provided so a s to protect the hoisting rope from irregular winding or slacks. The reset button of this device is inst.allecl in the operator's cabin. Refer to PART 4-3 "ROPE SLACK LINIIT SWITCH" for detail.
I
NOTICE--Check
to see if t h e action of rope slack limit switches after read PART 4-3.
5 . INTERLOCK SWITCHES FOR CONTROL HANDLES )
The innt,erlock switches for the control hanclle are proviclerl in orcler to prevent rnis-operation, when starting and restarting the crane after the limit switches are actecl
/i\ NOTICE----Incase where the control handles are not in the neutral position, the electric motor cannot start by the interlock switches. Please confirm the handles is neutral position.
I
6 . OVERLOAD PROTECTOR FOR HYDRALIC PARTS (RELIEF VALVE)
(1)The relief valves on the hydraulic motor are provided to protect the winches from overload. The hoisting and luffing motor each has one relief valve. The slewing motor has two relief valves. One is for slewing clockwise, and the other is for slewing counter-clockwise. In cases of quick starting and stopping of the slewing motion, the relief valves on the slewing motor are provided in order to soften the mechanical shock. (2) The.relief valves in the hyclraulic circuit are provided to protect the pump from overload. When the pressure of the relief valves exceed the maximum, in the three motions(hoisting, luffing a d slewing), the crane stops by the relief valves. In that case, a certain control handle (for example : slewing handle or luffing handle) should be returned to the neutral position, then the crane is able to operate continuously.
I A 7
N O T l C E N e v e r rotate the adjusting screw of relief valve.
THERMOSTAT FOR OIL COOLER
1) The fan motor for the oil cooler operates automatically by the thermostat which is installed in the hyclrauiic circuit. 2) When the temperature of the system oil rises over 70°C, red lamps O is lighted by the thermostat. 3) When the temperature of the system oil is below 5%. induction mot,or can starting but cannot operat.ion.
i ~..
/i\ N O T I C E - - - - IIn. case that red lamp@ is lighted, the handles have to be returned to
the.
neutral position and idling operation must be done until the red lamp @ goes off. 2. In case that the system oil is below 5"C, refer to the P.2-8 "PRECAUTION FOR OPERATION AT LOW TEMPERATURE" Refer to PART. 5-18 about detail of temperature controller.
:
8 . OVER CURRENT PROTECTOR FOR INDUCTION MOTOR THERHOSTAT INAL
BIHETAL &LEAD 1 CONTACT
There are three sets oE thermostats [THpl which detect over heat of stator coil of each phase of the incluction motor CIMpl . And one thermal relay is set in the contactor box, which detects over current of incluction motor. 151P, 51Fl In case of over duty of induction motor, the temperature of stator coil rises up, and the induction motor stops by the thermostats. And in case of over current or short phase, the incluction motor also stops by the thermal relay and then the. orange lamp on the control box is bright.
NOTICE---- In above cases, don't operate before you clear up t h e cause and check the condit~onof electr~cmotor.
The contact is bimetal system. In case of over current flows, the bimetal is curved and it's contact point is separated. K4IN TERHINAL
CONNECTION 0IACR.W
)
WIN TERHINAL
THERHAL RELAY ( S I P . S L F )
9 . JIB EMERGENCY LIMIT SVVTCH CL33EI
LUFFING REVOLUTION SHAFT
A jib emergency limit switch is installed to stop the jib movement even when the jib 'falls due to valve sticlung in the luffing driving device. If the luffing drum rotates in the jib lowering direction when an operator moves the lever to the JIB UP position, this device safely stops crane operation. If the luff'mg handle is moved to LIP side to lift the jib with only small movement, the brake will release and the jib will lower. T h s is the result of loss of hydraulic pressure from internal leakage in the hydraulic motor. In thls case, the emergency limit device will acts to stop the crane.
1
A
NOTICE-.-.If this limit is activated, reset the indicator lamp push "RESET" on the contactor box and then restart the pump motor operation.
1 0. EMERGENCY STOP DEVICE
In adhtion, an emergency stop button is provided in operator's cabin to stop all crane motions in case of an emergency.
CAUTION------Incase of an emergency, push an emergency stop button speedily to stop all crane motions. )
2-7 LOAD LOWERING PROCEDURE IN CASE OF POWER FAILURE
/i\
NOTICE-..-I.
If cargo handling stop because of a power failure or other unpredictable trouble and you want to lower the load, release the hoisting winch brake with a bolt for brake release according to the following procedure to slowly lower the load safety. Arrange your system operation so that the work can be quickly stopped if you find an abnormal situation. 2. Apply the lubricating oil (grease) to the bolt and the seat fitted on the fork end in bar of thread burn.
1. Prepare a bolt for brake release and wrench f o r M16 bolt. (The bolt is stored in the spare parts box.) 2. Apply the lubricating oil to the bolt and the seat fitted on the fork end of brake cylinder, and set the bolt t o the seat
fitted. 3 . Push the brake cylinder tube with the bolt, pull the piston rod and release the brake. The load i s lowered b y t h e reduction of the hydraulic pressure on the motor. 4. A f t e r the load i s on the ground, detach the bolt fiom the seat of fork end and return the bolt in the spare parts box.
M E LUBRICdnNG OIL
/i\m......l.
When the lowering speed is too high or to stop the cargo, release the bolt for brake release and brake will work. 2. Don't leave the bolt for brake release on the seat of fork end ,return the bolt in the spare parts box without fail after the work.
PART3 HYDRAULICSYSTEM
PART
3-1
BASIC HYDRAULIC CIRCUIT
3-2
HYDRAULIC PUMP
3-3
HYDRAULIC MOTOR
3-4
CONTROL APPARATUS
3-5
RELIEF VALVES
3-6
AUTOMATIC HYDRAULIC BRAKE
3-7
SOLENOID CONTROLLED VALVE
3-1 BASIC HYDRAULIC CIRCUIT (Refer to "FINISHED P HOISTING MOTOR
.x: -OIL T A N K
W detail of hydraulic circuit.) LUFFING MOTOR
SLEWING MOTOR
SYMBOL
NAME OF PARTS
I I
AUXILIARY LINE
/ I I
1
MAIN LINE
NAME OF PARTS
SYMBOL
%
THROTTLE CHECKVALVE
CUSHIONVALVE
DRAIN LINE
REDUCING VALVE
HYDRAULIC MOTOR
SOLENOID CONTROLLED VALVE
HYDRAULIC PUMP
INDUCTION MOTOR
I
I
SPEED CHANGE VALVE
COUNTER VALANCE VALVE
HYDRAULIC CYLINDER
I
CHECKVALVE
-D+-
STOP VALVE
+#+
TtEtOTTLE VALVE
4
I
-0-
OPERATEVALVE
RELIEF VALVE
-
I
OILCOOLER
OIL FILTER
1 0
I @ &1
OLFILTERFORTANK
THERMOSTAT
RELIEF VALVE WITH
'
SOLENOID VALVE DLRECTION CHANGEOVER
3-2HYDRAULIC PUMP SYMBOL
1 . CONSTRUCTION
The hydraulic pump is composed of a cartridge section housing0 to provide a suction port (low pressure), mounting cap@ to provide a discharge port &gh pressure), transmission ,shaft@ and bearingsa to support the shaft. The main components of the cartridge assembly are as follows : Cam-rings with inner cam and suction and hscharge passages. Rotor@ with vane@ i s formed working chamber rotating along the inner wall of the cam-ring. Vane@ which performs the reciprocating motion in the rotor vane slot, along the i ~ e cam r in the radial direction. The front casing and rear casing are located and fixed thorough the cartridge with high precision to keep the accuracy in th; shaft center deflection. Shaft 0 and rotor @ are connected by key or spline.
2 . OPERATION
The rotor and vanes are driven by an electric motor through theshaft and chain coupling. The vanes and hold out pin are fitted to the rotor groove. Vanes are pressed to the cam to keep suitable clearance by the hold out pin that is pressed by pin cavity pressure. And they are rotated smoothly to guide by the camring. The vanes with the rotor rotate along the camring to actuate the two-cycle operation per revolution. seal discharge -. seal. One-cycle operation is a process of suction Since the vanes locates symmetrically to the shaft to actuate the above cycle operation in synchronization, and the radial load is scarcely acted to the shaft. +
~
,'
~.~
-
~ 0 ~ 1 ~ ~ ~ e n precision t e r i should n g be confirmed when fiRing the pump. The hyd. pump may be damaqed.
3 . CENTERING
To ensure longer bearing life, the centering precision between i;he pump shaft and elect,ric motor shaft shall be kept wit.hin t,he error specified at the left,. ( Centering precision should be confirmed with a dial gauge.)
SECTIONAL VIEW OF HYDRAULIC PUMP
3-3 HYDRAULIC MOTOR SYMBOL
1 . CONSTRUCTION
The hydrauhc motor is composed of six proups as follows. (1) Cartridge assembly : Main components : Cam-ring O Rotor @ Vane O Rocker beam @ Push rod O @)Casing assembly : Casing@ with main passage which functions as a double side plate. Casing composed of bearing& and @ which is subject to the load of external force only. (3)Front flange and rear flange assembly : Flanges @ and @ locate a t the outside of the rotor@ are provided to prevent the deformation of casing@ under high pressure operation through application of the inner working pressure to the backside of casing@ and to keep the proper side clearance between rotor@ ancl casing@ . (4)Shaft assembly : Main components : Spline shaft connected to the rotor .: Distance ring @ Bearing inner ring Each component group is independently assembled to contribute to case of inspection, disassembly and assembly. The front and rear casing assemblies are precisely fixed by the straight pin@ through the cartridge assembly to maintain the high precision in deflection between the shaftancl shaft center. ,-
Hyclraulic motors of type HVK and higher capacity have a %step speed change mechanism and six working chambers. Type HVN has a %step s p e d change mechanism and four working chambers. Working volume is changed in combination with the t,wo opposed chambers. The hyt:lraulic motor may differ depending on t h crane type.
L
e SHAFT A S S ' Y
3-4 CONTROL APPARATUS
AUTOMATIC CHANGE TYPE (FOR HOISTING DEVICE)
1 . CONSTRUCTION
This control apparatus is provided to change the operation of the hydraulic motor such as stopping, normal rotation (winhng) and reverse rotation and to change the operational speed (Three steps : low, m e h ~ u nand hgh) automatically under normal rotation. A s shown in the figure, this consists of the control valve with oilinlet and outlet connected to the h y d r a h c pump, and the valve block with safety valve which is connected to the hydraulic motor. The control apparatus components are : 0 : Control spool @ ,GI : Speed change valve 0 : Counter-balance valve : Check valves provided each valves.
-
2 . OPERATION
(1)CONTROL VALVE SYMBOL
,V
(2)SPEED CHANGE VALVE SYMBOL
-%(3)COUNTER-BALANCE VALVE SYMBOL
The control spool to be actuated by geared cable changes the oil flow direction discharged &om the h y d r a d c pump, to regulate the quantity of oil supply for the hydraulic motor and to control the motor speed.
The speed change valve automatically activates in the order of @-@ to change the oil passage according to load. When activating @&@ , hydraulic motor speed becomes the low step (full chamber operation) and when activating only @ ,it is engaged in the mehum step(213 chamber operation). When @&@ are inoperative, the motor speed range is high step (113 chamber operation).
The counter-balance valve activates during reverse operation to prevent load over-speed and to maintain a stable lowering operation.
(4)CHECK VALVE SYMBOL
/i\
@-a
Check valve properly activates depending on the operation of counter-balance valves and control spool@, to prevent the oil backup cnrrent.
CAUTION.--...In this automatic type, when the revolutional load is applied to the hydraulic motor in a particular direction, the oil in the hydraulic motoris confined (oil block) to produce brakingforce in the motor. But, in the case of revolutional load in the reverse direction, an oil block is impossiblewhich will not permit to stop the hydraulic motor unthe half way loading condition. Therefore, the controllable direction of the load is restricted.
CHANGELESS TYPE (FOR LUFFING & SLEWING)
1. CONSTRUCTION
This control apparatus is not provided with speed change fhction to control the hydraulic motor under the full camber conchtion. It is available for two types ; S type for luffing and D type for slewing (luffing). It consists of the control valve and valve block the same as the automatic change type, and incorporates control spool, counter-balance and check valve. D type is provided with two units of co~mter-balancevalve and safety valve respectively, to prevent load overspeed in both normal and reverse cbrections of the working load. The S type is provided with only one unit of counter-balance valve and safety valve.
2 . OPERATION
Therefore, the controllable load hrection (the working load to the hydraulic motor) is restricted as automatic change type. For the D type, the braking force can be applied in both normal and reverse directions.
d
High p r e s s u r e s i d e
[Low p r e s s u r e s i d e
Stop
"B" S e c t i o n
MARK -
PARTICULARS
PARTICULARS
PARTICULARS
(0
CHECK VALVE ( 4 )
0
CHECK VALVE ( 5 )
@
CONTItOL SPUOL
CHECK VALVE ( I )
CHECK VALVE ( 6 )
@
CUNTROL LE\iER
CHECKVALVE ( 2 )
CUSHON VALVE
CHECK v.4L\n ( 3 )
SAFETYVALVE
(3 SPEED Cf1ANCI;: \'ALVE -
( I )
Automatic-change type control apparatus
S e c t i o n "A"
MARK
(0
PARTICULARS
ilI'GI'IA1'E \'Al.\'B CASING
1 \i:lL\lE
-
MARK
(73
l ~ l ~ N<;.\SlNc: %
@
CCiWI'Fi(1l. Sl.1 I < IL
@
CUNTRLIL I.E\llCli
PARTICULARS
COIINI'ER-BALANCE VALVE CI.IECI< VALVE
$9
S I \ F E ~ ' YV!\LVE
Changeless type control apparatus
(L-S)
Section "A"
MARK (1)
PARTICULARS
l l l J l ~ l t . 4 ' ~\!..\l.VE E Ct\S'l!K
MARK
PARTICULARS
COlIhWER-BALANCEVALVE
Changeless type control apparatus (N-D)
GTERISTICS OF CONTROL APPARATUS CHANGELESS TYPE
AUTOMATIC-CHANGE N P E
L-A
MODEL
hoist
l o 100
CHARACTERISTICS
I ........ ........L
Riiw
I
N-D
r -
L-S
speed
speed 0 100
+ load
300 lower
USAGE
K-D
K-A
%
speed
load
_____)
100
I I load f
N-D
100%
load
4 For HOISTING
For SLEWING
For LUFFING
3-5 RELIEF VALVE
The relief valves on the hydraulic motor (control apparatus valve block) are provided in order to protect the hydraulic machinery and equipment from over load. The relief valves in the hydraulic circuit are provided to protect the hydraulic pump over load.
SYMBOL
CAUTION----- ever rotate the adjusting screw of the valve which is set a proper oil pressure at our shop. 1 . OPERATION
.-/
In cases where the oil pressure applied to the chamber [PI is below the set pressure, the poppet does not activates. Therefore the oil is not flown through each nozzle and oil pressure in each chamber of [PI, [Pi] and [P2] has the same level to maintain this conhtion. When the pressure in [PI chamber and in [P2] chamber rises and the pressing force to the poppet becomes greater than the force of spring [A] (that is set pressure), the poppet is opened to release the oil from [Pz] to @I. At this time, [Pz]chamber is connected to [PI chamber by nozzle [A] and p]; thus, the oil passing through the nozzles [A and B] is pressured and the pressure in [PI]becomes lower than the pressure in [PI to push up the plunger. The pressure balance between [PI and [PI] is lost and the plunger is opened to release the oil from [PI to [R]. In cases, where the pressure in [PI becomeslower, the pressure i n [Px] also ,becomes lower to close the poppet and the pressure in [PI is same as the pressure in [PI]. Then, the plunger is pressed back to the seat and set to the close position.
.SPRING-A
NOZZLE B
ADJUSllNG SCREW
FOR MOTOR FOR PUMP
3-6 AUTOMATIC HYDRAULIC BRAKE
I
~ c A u T I o N - that c ~automatic ~ ~ ~hydraulic ~ ~ ~brake act normaly
The brake is turned ON by the spring housed in the brake cylinder@, and turned OFF by the brake cylinder operated by the hydraulic oil s~lppliedfrom the aforementioned control unit through the brake control valve@. When the hydraulic pressure drops due t o service interruption by electric source failure or a failure in the hydraulic system, the brake is turned ON automatically by the spring force. The brake control valve@ houses the direction changeover valve@ and the reducing valve@. The drection changeover valve is operated by the pressure generated in the aforementioned controlunit. It turns OFF the brake by supplying hydraulic oil to the brake cylinder, and turns ON the hrake by draining the oil from the brake cylinder to the low pressure line. (At this time, i t is in the neutral position.) The reducing valve protects the brake cylinder by controlling the pressure of the hydraulic oil supplied from the dwection changeover valve . to. the brake cylinder so that i t will not exceed the limit value.
MOTOR
- -.-
K-F VALVE
BRAKE .CYLINDER
1 5 1 REDUCING VALVE BRAKE CYLINDER
1
I
3-7 SOLENOID CONTROLLED VALVE
N O T I C E - - - . - that C ~ functioning ~ ~ ~ ~ ~ of solenoid controlled valve at no load.
SYMBOL
-
1 . OPERATION
The solenoid-controlled valves are provided to turn on or off the port from the valve block to return line.
In case that the solenoid coil @ is magnetized by electrical signal from the control handle, the movable iron core @ is attracted to the solenoid moves to the right side ; hydraulic port [PI is thus coil@,and spool disconnected to the port of the return line and, the pressure of main line is up. For this valve, the spool is usually set on open position by spring@ &@I.
a
MARK
O 0 @
NAME PUSH PIN SOLENOID COIL MOVABLE IRON CORE
SPOOL SPRING B
PART 4
PART
ELECTRIC CIRCUIT
4-1
START & STOP OF INDUCTION MOTOR
4-2
OPERATING CIRCUIT
4-3
LIMITING CIRCUIT
4-4
LIGHTING & HEATING CIRCUIT
4-5
OVERLOAD PROTECTOR FOR INDUCTION MOTOR
4-1 START & STOP OF INDUCTION MOTOR
The voltage of the electric instruments is as follows in general. Please refer to the skeleton diagram in the finished plan. Main circuit for motor AC440V, 3 4 , 60Hz Coil of main contactor for motor AC440V, 14 , 60Hz Control circuit ACllOV, 14 , 60Hz Lighting circuit AClIOV, 1 4 , 60Hz Heating circuit AClIOV, 1 4 , 60Hz The main cable from the ship is connected to the brushes of the slipring [SR] installed under the base of the deck crane. And this cable via slipring [SR] is connected to the circuit breaker [NFBP] in the contactor box equipped in the operator's cabin.
2 .STAR DELTA (Y-A) STARTING METHOD
(1 )STARTING CONDITION
The motor for the hydraulic pump is started in accorclance with the star-delta (Y- A ) starting methocl by means of the contactors [6P], [42P-11 and [42P-21. Accorchng to this starting method, the starting current of the motor is reduced to one-third or the value as compared with the line-starting system.
Before starting the motor, confirm that the following conditions are satisfied electrically : 1) Source is t,o be supplied. If the circuit breaker WFBP] "SOURCE (CRANE)" is turned on, the white lamp WL] "SOURCE" lights. 2) Control levers are to be in neutral. If the levers are not in neutral, the relay [AUH, AUL or AUS] is not excited by the interlock switch [HIS, LIS or SIS]. 3) Overloacl protection device of motor is not to act. If some prokction devices act, the orange lamp [OL] MOTOR OVER LOAD" lights. 4) Oil level of t,he t,ank is not to be low. If the oil level becomes too low, the red lamp [RL4) "LOW OIL LEVEL lights. "
(2)STAR (Y) STARTING
Push the 'START" button VBl]. The auxiliary relays [6X, 6YI are turned on and [6X] performs its self-holdmg circuit. The contactor [42P-l] is operated by the relay [6Y] and contactor [42P-11 makes [42P-21 turned on. Therefore, the motor [IMP] is started with star (Y) connection.
(3)DELTA ( A ) RUNNING
When the pre-set time passes after starting motor with star OT) connection, contactors [42P-11, [6P] are demagnetized by the timer [T6]. ---Thispre-set value 1s adjustable by the knob of the timer p 6 ] , and is set about 5 sec. to get the fd1 speed of the motor. During the winter season or in the cold clistrkts, this value should be adjusted to more than 5 sec. The delta contact of [T6] is turned on after abt. 0.5 sec., and the relay [6Yj and the running contactors [42P-11, [42P-21 are magnetized. Then, the motor [IMP] comes into running operation with delta ( A ) connection, and the green lamp [GL] "RUNNING" lights. At the same time, the relay [42P-X] is turned on by the auxiliary contact [42P-2].Thus, the cleck crane can be operated.
/i\ V
N O T I C E - - - - 1If. the control lever is operated during star (Y) startmg, the motor is stopped by the handle interlock as described. 2 If the temperature of oil is over 70°C or below 5"C, the red lamp [RL3] "OIL TEMP. HIGH & LOW lights. In this case when the control lever is operated, the motor will be stopped The motor should be run without load until the red lamp goes off
3 . STOP OF MOTOR
Push the button [PBZ] "STOP". The self-holding circuit of the auxiliary relay [6X] is disconnected and the main contactors [42P-I], [42P-21 are clemagnetized. Thus, the motor is st,oppecl.
4-2 OPERATING CIRCUIT
When the induction motor [IMP] for hydraulic pump comes to delta running, the deck crane can be freely operated by control levers. Make sure that the green "RUNNING lamp lights up. Three motion, hoisting, luffing & slewing, could be operated in this crane.
4-3LIMITING CIRCUIT
GAUTlON......Confirm that the each safety device is act before operation May forecast person injury and also damages to the equipment caused by defective action of safety device.
The following limiting devices are installed in this crane.
1 .HOISTING LIMIT [H33H, H33LI
,-
The hoisting limit switches are installed in t.he switch box with luffing ancl differential limit switches. These rimit switches are turned to "0N"and " O F F by the striker which is moved according to revolution of hoisting h u m . The high limit switch IH33H1 is activated i n the position where the hoisting rope is fully rolled into the drum and the low limit switch CH33L1 is activated where the rope is fully paid out from the drum. When the high limit switch [H33H]acts during hoisting operation, the relay [auh] is demagnetized ancl induction motor [imp] is stopped. Then the red "LIMITING lamp P L l ] lights. When the low limit switch [H33L] acts during lowering operation, the motor [IMP] is stopped and the red "LIMITING lamp P L l ] lights also.
There are three luffing limit switches : high limit switche [ ~ 3 3 ~ , ~ 3 3 ~ , ~ 3 3 ~ , ~[L33U], 3 3 ~ ]low limit switch [L33D] and rest limit switch [L33R] Double rating limit switch [L33W is e q ~ ~ i p p eoptionally d in accorclance with specification.
2 .LUFFING LIMIT
3 .DIFFERENTIAL LIMIT P331
4 R O P E SLACK LIMIT bYS331 LS "ON" "V
When the hook block approaches the sheave unit on the jib top during hoisting or luffing clown operation, the differential limit switch [D33] is activated. At this time, relay [AWH or AUL] is demagnetized, and t h e n the induction motor [IMP] i3 stopped. The working position of this switch ID331 is changed in accorclance with the relation between the hoisting striker and that of the luffing.
If the hoisting rope is loosenecl by some cause, the wire rope slack limit switch [WS33] is activated. When the loosenecl rope returns to the normal condition at once, the induction motor will nor; stop. I K the rope continues to loosen c l ~ ~ r i nthe g "pre-set time, the timer [19W] co11nt.sup and the relay [AU>y is magnetizecl. Therefo.re, the rc~li~y [AUH] i tnrnecl off, ancl the induction motor stops. After the incluct,ion motor yt.ops, there are two conclitions which one is that the rope $lack is already taken oil'by t,he self-weight of the hook. anrl thr ot,her i$ that the rope is still loose. These conclitions can be simply confirmed by pushing the lamp but.t,on "ROPE SLACK (IAMP RESET)" [LPB4]. It'this red lamp goes ot'C thr rope slack is returned t,o normal conili tion. [f'not, make silrc, t.hr wire rope mnclition immecliat,~ly.
* yre-set time This value (:an Ilr a~.ljust.e~:l by thr st!t,t.ing dial of the timer [19v.
The normal sel.t,ing value is about 0.3 sec..
4-7
.
,
5 .LIMIT SWITCH BY-PASS NORMAL
BY.PASS
When the limit switch is activated, the induction motor is stopped. After restarting, if thecontrol lever is tilted to the same direction again, the motor stops and the crane cannot be operatecl. Therefore the contactor box is furnished with select switch with key "DIFF.,ROPE & LUFF. LOW LIMIT BY-PASS" for the purpose of resting the jib and checking the hook block. After turning the select switch to "BY-PASS", the differential, rope slack and luffing low limit switches are by-passed. Thus, the crane can be operated over these limits.
-~~@3 BY.PASS KEY ,'d,ix*BY-PASS SWITCH (WITH KCO
,i-r.rxx.r./+ (+-H)
A C A U T I O N . - . . l . Turn this by-pass switch to the "NORMAL" s ~ d eat loading. 2. The improper use of this switch by the stevedore causes the acc~dent Therefore the crew of this vessel must keep the key of this switch. 3. This by-pass operation should be enacted carefully, only by the crew.
The slewing limit has two switches ; . right limit switch [S33R] and left limit switch [S33L]. These limit switches are fitted to the slipring. When [S33R] or [S33L] is activated, the induction motor [IMP] is stopped and the red "LIMITING" lamp lights. Please refer to the skeleton diagram of the finished plan whether the slewing limit switch is fitted or not. This switch is optional.
7 .OIL COOLER FAN CIRCUIT
".-,
The incluction motor [IMF] for the oil cooler is automatically operated by the thermostat and thermostat temp. controller while the incluct,ion motor [IMP] is running. The thermostat is inserted in the oil pipe and t,hq-temp. controller in contactor box takes the oil temperature by change of resistance of t,his thermostat,. The initial value of the temp. cont,roller is set as follows. above 40°C cooler start, below 35°C cooler stop
THEFWOST.4T
N O T I C E C o n f i r m that oil cooler starting by hydraulic temperature heated up in operation.
4-4 LIGHTING & HEATING CIRCUIT
The following equipment are installed on the deck crane. Please refer to the circuit diagram in the finished plan. The voltage ACllOV is used for lighting and heating circuits. Turn on the circuit breaker CNFBHl "SOURCE (LIGHT)" on the door of the contactor box so that the projector and the other lamp may light.
-
1 .ROOM LIGHT
The fluorescent lamp on the ceiling of the operator's cabin is switched on and off by the "ROOM LIGHT toggle switch (TS11 on the door of the contactor box.
2 .PROJECTOR
The projector is switched on and of$ by the "PROJECTOR toggle switch ITS21 on the door of the contactor box.
3 .MACH. ROOM LIGHT
The pendant lamp in the machine room are switched on and off by the tumbler switch situated a t the inside of the entrance.
d
/i\ NOTICE...-1.
The toggle switch [TS3] of the space heaters should be switched on always in order to prevent moisture. If the space heater is not switched on, it may entail damage to the electric. motor by insulation resistance reduction. 2. In addition, please make sure breaker [NFBH] is turned on. It supplies the source to this circuit. (In case that the source 110V is supplied for space heater directly, you don't have to turn on this breaker [NFBH].)
Even if the induction motor [IMP] is started while the switch pS3] is on, the space heater circuit is automatically disconnected by the auxiliary contact of the running contactor [42P-I]. Therefore, there is no trouble of overheating because the motor and the space heater are not working at the same time.
4 .SPACE HEATER
The space heaters for moisture proofing are fitted in the electric motor [IMP] for the hydraulic pump and the contactor box. These space heaters are switched on and off by the "SPACE HEATER" toggle switch (TS31 on the door of the contactor box.
5 .THE OTHERS
The receptacle switch is installed in the machine room The heater and the electric fan could be used also.
4-5 OVERLOAD PROTECTOR FOR INDUCTION MOTOR
/i\ CAUTION--.---Ifover load protection for induction motor is
"ON", don7 operate before you
clear up the cause and check the condition of electric motor.
I
Induction motor may b e d a m a g e d .
If the induction motor [IMP] becomes over-loaded for some reason, the motor circuit is protected by the thermostat [THP] or the thermal relay [51P]. And if the induction motor for oil cooler [IMF] becomes overloaded, i t is protected by the thermal relay [51F]. If either of them is activated, the auxiliary relay [51X] is demagnetized, and the induction motors [IMP] & [IMF] are stopped at the same time. The orange lamp "MOTOR OVERLOAD" [OL] on the contactor box lights up. These devices protect the motor from single phase operationas well a s overload running. Therefore when the induction motor is stopped, it is necessary to confirm whether it is stopped by the overload running or not. Careful attention must be paid to the open-phase operation of the induction motor, because it is st-opped by insufficient contact between the slipring and the brush in the slipring device. If a short circuit between the phases and the earth happens for some reason, the induction motor is protected by the inst,ant trip of the circuit breaker [NFBP] or the fuse [EF]. '
1 .THERMOSTAT (THP)
L
Three set.s of the thermostat [TI-IP] are equipped in the stator coil of each phases of the induction motor [IMP] and these clevices are connect.ecl in series. If the tempmature of the coil rises above the pre-set value by over duty operat~on,t,he contact of the thermost.at [THP] is opened, the auxiliary relay [51X] is clemagnetized, and the induction mot,or [IMP] is stopped. In this ( : m e , if the temperature of the coil goes below the prescribed value, thr t h r m o s t a t [THP] reverts t.o the tbrrner conclit,ion "ON" aut,omatically. BIXETAL
STATOR C O I L
1
CONTACT TH?
LEAD W I R E
INTERIOR V I i V
When t,he t,hermostat is heated up, t , h ~bimtbtal curves and conl.nt:l, point is separated
it.5
Tlir working t,ernperat,ure ot'the thermost.al, i.5 very exact (error rat,ion : 2.5"C) and this thermostat has long-life. If it is damaged, please by-pass the trouble circuit in the t,errninal box.
*
2 .THERMAL OVER-CURRENT RELAY [51PI & [51F]
[51P]& [51F] are fitted in the contactor box. If the induction motors become overloaded or run by single phase operation, the thermal over-current relay [SIP]or [51F] is activated, the auxiliary relay [51a is demagnetized, and these motors are stopped a t the same time. These thermal over-current relays are of the manual reset type.
.MAIN T E R M I N A L
MAIN T E R M I N A L
S E T BUTTON
The contact. is a bimetal system. In case of the over-current, the bimetal curves and its contact is separatecl.
PART 5
PART
MAINTENANCE AND INSPECTION
5-1
PRELIMINARY NOTICE
5-2
MAINTENANCE CHART
5-3
RECOMMENDED OlLS
5-4
VOLUME OF OlLS
5-5
SUPPLY HYDRAULIC OlLS
5-6
SUPPLY GEAR OlLS
5-7
CLEANING OF OIL-FILTER
5-8
WIRE ROPES, DEAD-EYE THIMBLE
:.
5-9
ROPE GUIDE
. . .
5-10
GEARED CABLE
5-11
TIGHTENING TORQUE OF BOLTS
5-12
GEARS
... . .,>,.~. .
5-13
BRAKE LINING
..
5-14
HOOK BLOCK
5-15
SHEAVES
5-16
OIL COOLER
5-17
ELECTRIC PARTS
5-18
TEMPERATURE CONTROLLER FOR PLATINUM RESISTANCE THERMOMETER
5-19
ADJUSTMENT OF EMERGENCY LIMIT FOR JIB
... .
,
1.
, ,
.
,
-. ,>
.. . ..I :. '
.
.
.
. . . . . .
~
,
.
~
5-1 PRELIMINARY NOTICE
It is important that the user should understand the functions, features and construction of the crane and device a proper maintenance system. It is safe to say that it is too late in a day to learn how to repair the crane after it has already broken down. But we can say that most troubles and accidents may be prevented by familiarization and the periodical maintenance by the user.
Please keep the following when proceeding with maintenance or inspection.
V'
CAUTION.---.-^. The crane should be rested wifliput cargo when proceeding with \.
.
. . . .
.
I
, . . .%
..,
.....
.
. maintenance or inspection. . . 2. Both SOURCE SWITCHES for the main and auxiliary circuit of ttie..crane
I I
. . .. .
should be securely turned to "OFF, on the control panel in theengineiroom . : (In thrs case, suspend the "Under inspection" caution plate.) : 3. Never adjust the safety devices, timer, hydraulic valve or brake device($ for no reason at all. . .. . . 4. Never replace, disassemble or adjust the HYDRAULIC PUMP and . : . . . . ., MOTOR without contacting IHI. . . ..
1, 1
'
-
,. .
A
NOTICE..--,.The STOP VALVE in suction line from HEAD TANK in a machinery room turned close when overhauling or cleaning the OIL FILTER. This stop valve must be turned open fully after maintenance.
HEAD TANK
2. Care should be taken not to produce or reassembly with a wrong fitting differing from the original installation. 3. Care should be taken to keep each part
and finished surface clean. At assembly, supply grease to O-ring and packing for moving parts.
T o Succton Line
4. After overhauling, perfectly purge all remaining air in the hydraulic system.
The crane is start-up the pump and perfectly purge air carryng out the air purging work no-load operation 5. Then, operate each motion carefully at no load, confirming normal motion and sound. . . ..
.
6 . The deck crane has a long pause and is always exposedto sea breezes and
sea water, & electric parts are apt to cause some, troubles. Therefore check . . . . . . . . before operation, and regular intewals.
7. In case of cargo handling for powdered materials, fit the air filter to air inlet
side of the crane. 8. During maintenance, refer to the "MAINTENANCE CHART" as follows.
PERIODIC MAINTENANCE/INSPECTION OF HYD. PUMP AND MOTOR (The following maintenance are strictly required to 'customer.) It should be overhaul/recondition of hyd.motor mare than eight(8) years service.
/i\
N O T I C E - - When vane tip are abnormally worn out by the age, no oil block function and increase sagging speed. In this case, there are possibility of crane stall if there are damage of mechanical brake and mis-operation of deck machinerylcrane. When customer requires, we can accept the inspection /diagnose loverhaul /recondition of hyd. pump and motor. (Please ask to IHI MARINE CO..LTD)
*l.The above maintenance and inspection intervals are for reference. They should be changed depending upon crane operating conditions. *2. Refer to the part No. mentioned in remarks for the inspection method and replacement period.
CHART FOR GREASE AND GEAR OIL SUPPLY GREASE
OPEN GEAR OIL SUPPLY POINTS
SUPPLY POINTS Slewing pinion & gear
m... Supply sufficient oil to the wire rope and dead-eye thimble.
I
V'
6
Jib beanng
7
Deadeye thimble
8
Hook block
9
Control handle (for l d f & slew )
10
Door clamps
(011
I
+ brush)
CHAIN COVER GREASING I -
INSPECTION AND OIL SUPPLYING
I 11 I Main motor
1I
1 12 1 Chain couplin~
1
No.
SUPPLY POINTS
@ CHAIN COUPLING
GREASING
-1
'b
8 LUFFING & SLEWHANDLE
Refer to the CHART on crane body for detail, because grease and oil supply point may differ according to crane type. -
1~
-
5-3 RECOMMENDED OILS 1 . SELECTION OF HYDRAULIC OIL
RECOMMMENDED HYDRAURIC OIL shown on the followmg pages IS selected for general use except for the coldest regons. These 011s are used under t h e following conchtions: (1) Atmospheric temperature with crane operating. Refer to t h e SPECIFICATION
........... (2)The highest starting oil viscosity of hydraulic pump. ...........3ooocst
(Lowest ambient air temperature of SPECIFICATION) (3)The highest normal running oil viscosity: 500cst ( +5"C) (4)Max. hydraulic oil temperature a t normal running is +65"C, and in this conchtion viscosity is 25cst or more. (5)In addition to the viscosity, the pour point shall be taken into consideration, also. The pour point is lower than pump starting oil temperature by 10°C or more, t h a t is, the pour point of hyclraulic oil is -20°C or below.
- -- "-
A N O T I C E . . . . ..1. We cannot take responsibility for the damage and deterioration in performance caused by using oils other than our "RECOMMENDED HYDRAULIC OIL''. 2. This is also the case if the crane is operated exceeding the conditions mentioned in the above item "SELECTION"." 3. If atmospheric temperature does not satisfy the above mentioned condition (especially in the coldest regions), and if there can be found no proper hydraulic oil, contact u s and/or oil maker and make the selection.
)
2 . INSPECTION AND EXCHANGE OF HYDRAULIC OIL (Refer PART 5-5)
A
NOTICE....I . Sampling of hydraulic oil should be carried out once a year to check the condition of the hydraulic oil. 2. Replace the hydraulic oil, if found deteriorated, with a new one in accordance with the oil listed in the "Recommended lubricating oils".
3 . GEAR OIL (For wire rope, open gear)
A
N O T I C E - - -Some gear oils have high viscosity s o that gear oil should be coated after heating by heater, etc.
5-7
RECOMMENDED LUBRICATING OILS Lubricating Point Method of Lubrication SHOWA SHELL MOBIL
Enclosed Gear and Bearing
Open Gear (or Wire rope)
Oil Bath
Brush
Omala Oil
220
I
Grease gun or Hand
Alvania E P Grease 2
Malleus GL 95 (Malleus Fluid RL) Mobiltac 375NC
Mobil Gear 630 Mobii SHC 630 Spartan EP220
ESSO
Bearing or Links
Mobiiux
EP2
I
Surett Fluid 4K
Beacon (Lithtan)
EP2
I MM - EP2
Energrease
OG
Energrease
Lubricant
250NC
Dm-Lith Grease
I CALTEX
Meropa Lubricant
CASTROL
Alpha
SP220
I
TEXACO & Mempa
NIPPON
220
Bomoc
220
Clanw Compound
M220
2
Epnoc Grease
EP2 AP2
MITSUBISHI I
COSMO
Cosmo Gear
IDEMITSU
Daphne Super Gear Oil
FUJI KOSAN Fukkol Mild EP Gear JAPAN ENERGY
1 Reductus
Cosmo Gear Compound
SE220 220
Daphne Open Gear Oii
No2
I Cosmo Grease Dynamax EP
2-S
Daphne Eponex Grease E P No.2 Daphne Eponex Grease SR No2
220 I
220
Gear Compound
No2
Lisonix Grease I
Epona Z 220
CardrexaDC
1
Epexa
2
EP - 2
T h e f o l l o w i n g l i s t shows t h e recommended hyd. o i l b r a n d s selected f o r ships serving o n general r o u t e s excluding those in t h e p o l a r circles.
Remarks: 1. Guarantee viscosity for hyd. pump starting is 3000 cSt. 2. Pour point is in below less then 10°C of guarantee temperature for hyd. pump operation. 3. Oil should be anti-wear oil of IS0 VG 68 and V.I. more than 100.
4. Optimum viscosity range is 25- 500 cSt.
5. The ship where sailing to cold route, the system oil should be selected in our recommended table which has higher viscosity index, lower pour point and lower temperature at 5000 cSt.
5-4 VOLUME OF OlLS UNIT :liter/crane HYDRAULIC
I
LUBRICATING OILS OPEN GEAR
I ,NGLE CRANE
H40 T
H60 T
)OUBLE CRANE
I
I
&WIRE ROPE
GREASE
I
5-5 SUPPLY HYDRAULIC OILS 1 . OIL REPLENISHING
I
N O T I C E Treplenished ~ ~ oil must be the same a s the original brand.
2 . OIL CHANGING
)
Make sure the oil level of gauge is proper. If insufficient, replenish the hydraulic oil to the proper level of the oil gauge.
Hydraulic oil requires changing because it will deteriorate from an extended period of usage.
/i\ NOTICE......It is recommended that the hydraulic oil is to be checked by oil maker a s to service ability. The sample oil requires about one liter for one oil check.
3 . PROCEDURE AIR VENT PLUG
VINYL HOSE
(1)Drain out all hydraulic oil in the MOTOR, PUMP, PIPING and TANK. At this time, clean the inside of the oil tank @.
(2) Connect the vinyl hose of the WING OIL PUMP or air driven pump to the changing port @ shown in the figure. (3) Fully open the STOP VALVE @, and carefully supply oil to the oil TANK @ by mean of the PUMP together with checking of the OIL GAUGE ' (150 mesh oil filter is installed in an oil tank) All oil, particularly hyd. Oil should be used with RECOMMENDED OILS shown 'as in the table.
' 0 ,
f!!
DRAIN PLUG OIL PAN
(4) Open the stop valve @ and transfer the oil from the tank to each hydraulic equipment. At this time, open the air vent plug and flow out the air and oil to the empty oil can by using a vinyl tube as shown in the figure. At this time, the oil level will go down so hydrauhc oil should be supplied.
(5) Intermittently operate the ELECTRIC MOTOR and remove the air from the hydraulic piping and equipment as well as you can.
(6) After this, close each air plug and charge the oil to the proper line of gauge. Then close stop valve @ and set the cap. (Don' t supply over high level. I t is cause of over flow etc.)
OIL LEVEL GAUGE
AIR VENT PLUG
( 7 ) Operate the crane several times a t each motion to check the sound, and whether any air remains in the system or not.
DRAIN VALVE WING PUMP CHARGING PORT NEW OIL
. . STALE OIL
&DRAIN
PLUG
STOP VALVE tllL!xl TANK STOP VALVE
(G3/4)
(Location of CHARGING PORT may differ from this drawing.)
/i\ CAUTION..--.I. Before starting the electric motor, confirm whether is each valve condition correct or not 2. Completel'y purge remaining air in the Hyd. system in order to prevent any trouble. 3:When changing oil, take great, care against dust in the hydraulic equipment.
4 . JUDGENEBT OF DETERIORATION
(1) Criteria for replacement based on analysis
IViscosity change ratio
Limiting Value
Judgement Item
*lo% or more 0.15% or more
Water content (Wt)
I Equivalent or not better than I
1 Degree of pollution
NAS class 12. In case only the degree of pollution is found to have exceeded the system flushing (filtration) to reduce equivalent or better than NAS Class 11.
(2)Judgement by visual inspection and odor Visual Inspection
=parent,
I in color
no change
ITransparent, but Ichanged in color
Oil Condition
Odor
1 ~cceptableI Good
I
I
I
1 oil is mixed
Continue use
1 Acceptable IA bfferent kind of
I ~ l a c k i s hbrown in color 1 Offensive 1 ~ e t e r i o r a t e ddue to oxidation e substances I~ransparent,but includes I ~ c c e ~ t a b Il Foreign black spots
Judgement
I are mixed in
the viscosity is adequate Replace Filter the oil and keep using it.
5-6 SUPPLY GEAR OILS
Procedure of supplying oil for closed gear a s follows:
NOTICE-----1.
In case of supply oils, don't operate the crane. 2. If the result of gear oils judgement over limiting value, replace new oils.
1 . CLOSED GEAR FOR HOISTING AND LUFFING
(1) Open the drain cap to let the stale oil out,. If any dust, foreign matter, etc. is mixed in the oil, clean inside the closed gear.
( 2 ) Close the drain cap
and supply a recommendecl new oil (for closed gear) from the supply port.
(3) Confirm t h a t the oil is filled to the "proper" level of the level gauge PROPER
1) Make a clean sweep of the stale oil on the gear and the pinion. 2 ) Check the contact-surfaces of teeth (if damage such as pitching, is found, this will require repair). 3) Brush or spray with the recommended new oil to both surfaces of the gear and pinion.
(2) CLOSED GEAR OIL
Take out the stale oil and supply the new oil with the same procedure as for the hoisting gear'(1t is better to use the funnel for supplying oil).
(2J2J
PROPER LEVEL
HYD.
MOTOR
O I L L E V E L GAUGE
A I R BREATHER
FUNNEL
DETAIL OF DRAIN PLUG -- FART
HOLLOW HEX
DRAIN PLUG
.
'
PINION
-JV O I L PAN
3 . REPLACEMENT CRITERIA FOR GEAR LUBRICATING
Judgement Item
Limiting Value
Viscosity change from new oil
20% or more
(210" F, cst)
Recommendable
Remarks
Oxidized deterioration is in progress.
A different kind of oil is mixed in
limit 10-15% Water content Dissolved
N-heptane
0.2 or more 1.0 or more
oroduced bv abrasion, dust, etc
substances
oyt %)
Oxides, carbons, additive particles
0.5 or more
I 0.1 or more Deposit
Additives, carbons, particles produced by abrasion. dust. etc. Water content, dust, particles produced by abrasion.
Ash content (%)
0.2 or more
Dust, particles produced by abrasion, additives.
Iron content in ash (%)
0.1 or more
Increase of 0.5 or more from the initial value
Particles produced by abrasion Oxidized deterioration.
5-7 CLEANING OF OIL-FILTER 1 . OIL-FILTER FOR MAIN CIRCUIT
._
This is installed on the low pressure line near the suction side of the hydraulic pump for the main circuit.
/ i \ ~ ~ ~ l ~ ~ . . . . . . l . ~ l eofa n oili filter n ~ is every three month. (Refer to PART.5-2)
is broken, take out NUT @ and 2. In case that FILTER-ELEMENT ELEMENTSUPPORT @ ; then ELEMENT should be exchanged. 3. Take special care against dust when overhauling and reassembling.
Method of resolution, cleaning and restoration oil filter as follws : (1) Close the STOP VALVE in sucion line from tank. (2) Take out BOLT @ for cover and loose the HOOKS @.
(3) Turn COVER to counter-clockwise 90" by means of the handle and oil will not flow out from piping. ( At this time, )
(4) Open DRAIN PLUG@ a little to let hydraulic oil. (5) Take out bolt with the HOOK and take out the HOOKS from COVERO. (6) Take out ELEMENT SUPPORT @ with
FILTER-ELEMENT @. (7) Clean up ELEMENT @ with washing oil and compressed-air.
(8) Take out DRAIN PLUG @ and'clean up the inside of CASE.
(9) Reassembly should be done i n the reverse order of overhaul taking care, not to damage O-RING @I. (10) Open the STOP VALVE and purge remaining air.
/i\ NOTICE......I Covera must be turned counter-clockwise 90'. @ is removed without turning, a greater amount of oil .
If COVER
will flow out.
2. Confirm that arrow label turn on an original direction after reassemble. 3. STOP VALVE must be ope,n*after maintenance.
4. In case of reassembly, take care not to damage O-RING@.
DRAWING OF OIL FILTER
5-8 WIRE ROPES, DEAD-EYE THIMBLE
-
The majority of crane troubles occur from breaking down of wire rope. Thus, i t i s very important that wire ropes are to be checked, handled kith special care and lubricated a t regular interval.
1. CHECK POINT BEFORE OPERATION
/~\CAUTION-..-I.
The wire rope and shaft @ of dead-eye thimble should be sufficiently lubricated. (fig.1) 2. The bolt of wire clamp @ on drum for hoisting and luffing should be sufficiently tightened. (fig.2) 3. The wire end should be sufficiently bound by the seizing wire.(fig.3) 4. The wire rope should not have any snapped strands, kinks, deformities or abnormal abrasion.. Especially check the parts of winding part on drum and rope end. Wire rope should be exchanged when wire conditions come under the limits mentioned. (fig.4) 5. The dead-eye thimble, pint, and fitting bolt should not be rusted, or worn, and should not have deformities or looseness.
11
SHAFT @ \
,SEIZING
WIRE
DEFORMITY
SNAPPEDSTRANDS WIRE CLAMP @
/
U Fig.2
A
KINKS
2. CAUTION FOR WIRE ROPE MAINTENANCE
.-...In case that maintain wire rope and thimble, be caution abqut fire and ventilation.
-I
I
CAUTION......lf the oil with wire rope get less, apply the proper oil.
3. EXCHANGE OF WIRE ROPE
)
/i\m.--.Wire rope should be exchanged when wire conditions come under the limits mentioned below JUDGMENT.
Judgement of wire rope
U 4 X S e S (48)
The end times to exchange wlre rope are gwen by Labor Safety Regulations In JAPAN as follows :
1 ) When the individual wires ot' wire rope have snapped over 10% of the total number of wires in 1 pitch or over 5% of one strand of wire in 1 pitch.
Ex. Hoist. Wire Rope I UNI ROPE 1 4X(12+18+18) 192X 10%=19 wires
Luff. Wire Rope I JIS N 0 . 1 8 I 6 X F i [1+7+(7)+14]IWRC 1 3 2 x 10%=13wires
2 ) When the intlividual wires oi' wire rope have mapped over 20% of the total nurnbflr ot' wires in 5 pit,ch.
3
4
When the outer-diameter ol' rope has come to be worn up to '7% less the original diameter. )
If wire rope has a kmk, cleforrn~ty,or abnormal wear
I
4. PROCEDURE OF EXCHANGING
1 ) Take off the set screw a n d the striker @,@ i n the LIMIT SWITCH BOX 2 ) Cut a n d remove the thimble@ of stale wire rope.
I Am.....
Before cutting, line up the wire ripe end for preventing fray.
3 ) Prepare a wire drum stand and lever for breakage. ) Connect a new wire rope a n d the stale rope.
*
I t is convenient to use wire grip for preparing with wire rope.
) After taking off the wire clamp, wind up t h e new
rope b y the driving drum a n d also loosen a n d take out the stale wire from the drum together.
I
--.-I.
The wire end should be guided s o as to lead through the sheave and hook smoothly. 2. At the time of winding the wire rope. be careful that the rope does not contact the drum flange or other equipment.
6 The wire e n d bound by seizing wire should be clamped tightly the wire clamp together with the next turn.
I
I m . . . - . ~ e l e a s ethe wire grip for preparing after new wire rope was clamped on the drum.
I
7 ) Connect the wire thmble to the shaft. At this
time, the fitting bolt of end plate or key plate shoulcl be tighten with specified torque. 8 ) Adjust the limit switch box to satisfy the normal
lifting height. (Refer to item 7, Part 5-8) 9 ) The wincling number of hoisting and luffing wire on
each clrum at the upperflower position should be adjusted to the number mentioned in the "WIRE LIMIT SWITCH finished plan.
RIGGING
CUT
@ WlRE THIMBLE \
,a/
-
STALE WlRE
W R E DRUM STAND
W N C H DRUM
(Eye piece may hffer accoraing to crane type.)
/ i \ C A U T l O N . - - - I .If a wire is wound excessively, correct the winding number by cutting. since over windings can cause failure or damage. 2. However, it is necessary that at least three turns of the rope are on the drum in all operating positions. 3. When ordering a new wire rope, inform u s of it or buy the same kind of rope mentioned in "WIRE RIGGING AND LIMIT SWITCH". (Especially, other kind of hoisting rope causes twist, kinks and various deformities as well as a shortened life-span.) 4. The dead-eye thimble should be exchanged with new one at the same time.
5. CONFIRM AFTER THE ROPE EXCHANGE
After exchange of the rope, check the conditions of the reeled rope, and confirm still further whether the hook block is twisted by screw action of the rope or not.
( 1) How to check rope twist
1) Raise up the jib to about 70 degrees at no load conclition,and lower the hook near the lowest position in the ship hold.
JIB TOP SHEAVE
2 ) Take off hand after the hook is turned bv hard
clockwise andlor counter-clockwise about 90 degrees. Then, confirm that the hook has recovered to its proper position as shown in the figure.
A I
NOTICE.-.---I.Allowable angle( 0 ) of the hook should be restricted within 15 degree a s shown in the figure. 2. It is required that the twist is removed as reference to next method.
The hook block is generally turned clockwse (or counter-clockwise) looking from upside m case that the hoisting wire rope is "S" lay (or " 2lay).
( 2 ) Method for removing
Removing twisted wire rope as follows:
twisted wire rope 1) Confirm the chrection of twist and intersection number
of the twisted hoisting wire rope without load, a t jib up, same a s aforementioned item (1)-1). 2 ) Rest the jib on the rest stanchion.
3 ) Pay out the hoisting wire rope until the rope slack limit
switch is activated. 4 ) Fixed a wire stopper (or chain) on the wire end at
about one meter from the wire thimble, and hold the hoisting wire rope with chain block and sling wire.
5 ) Mark the wire thimble i n order to count the number of turns.
6 ) Take off the wire thimble from the eye piece on the housing top or jib top.
7 ) Turn t h e wire rope counter-clockwise (or clockwise) looking from wire end to rope when hook block is turned clockwise (or counter-clockwise). At the same time, turn the wire rope with pipe wrench at jib top in order to transfer turns beyond sheave.
8 ) Required number of turns (N) for untwisting is about 3 times of intersection number (n)
Intersection number of twisted wire I
HOISTING DRUM
HOOK BLOCK
I
Number of turns (for reference)
n
where 9 : twisted angle of hook block
n = 2
( f o r exampie)
9 ) When the wire rope becomes hardly after some turns and cannot be turned any more, refit the wire thimble to housing top, and operate hoisting and luffing motions in order to transfer turns further beyond sheaves. And then, take off the wire thimble and turn the wire rope again in the same way. 10) After completion of' untwisting work, refit the wire thimble to the eye piece and confirm t,hat the hook has twisted or not in accorclance with 'aiorementionecl it,em %(I). Then, if' the twist is st,ill Irk, repeat again until1 the twist disappears.
6. ADJUSTMENT METHOD OF LIMIT L33R
)
~
3
3
~U ~ D
As the drive chain for the limit switch is taken off at such wiring, the limit switch should be adjusted again. The dunension of the limit switch is mentioned in the "HULL & CRANE ARRANGEMENT" and "TABLE OF WIRE ROPE AND LIMIT SWITCH, which are included in the FINISHED PLAN. (MACHINERY PART).
n m . , , . . . ~ d j u s t i n gof limit switch, operation should be done at no load and low speed in order to prevent any troubles.
7. ADJUSTMENTPROCEDURES
The limit switch is to be adjusted as follows : (1) L& up the jib until the &stance comes to about 2030mm between the jib and buffer, and check the min slewing r a h u s .
MIN
SLEWING RADIUS
(2) Set the jib upper limit switch(L33U) to touch the luffing striker(0FF position) by rotating the traveling coller. (3) Wind up the hook to the upper limit by using a tape measure or rope accorhng to the "HULL & CRANE ARRANGEMENT" in FINISHED PLAN. (4) Set the hoisting upper limit switch(H33H) to touch the hoisting striker (OFF condition) by rotating the traveling coller .
(5) After the setting of both striker for hoisting and l~~fflng, pay out the hoisting wire. Confirm the hoisting lower limit( H33L) to satisfy the max. life and 3 wraps of wire is wound on the hoisting drum a t the same time.
(6) Confirm that the luffing lower limit(L33D) is activat,ed at the max. slewing radius.
(7) At the max. slewing radius, hoist up the hook unit, and confirm that the differential limit(D33) is activated t o keep proper distance between the center of jib top sheave and the hook unit. (8) After adjusting, confirm that all limit switches act correctly in practice.
(9) Finally, set the jib on the rest stanchion. And confirm that limit switch(L33R) is acted when the luffing rope is loosened a little.
FFING STRIKER TRAVELLING
SET
7 1 SET SCREW
TRAVELLING.
COLLAR
HOISTING STRIKER
LIMIT SWITCH BOX
5-9 ROPE GUIDE
LOOSENING METHOD OF ROPE GUIDE ROLLER Loosen the locking n u t (When replacing the hoisting wire rope, loosen the rope guide roller.)
/i\ N O T I C E - - - - When the rope guide roller is reassembled, adjust the adjusting bolt and lock nut so that the pressure of the rope guide roller applied to the wire rope becomes suitable (1 180N).
74P-0-7 WIRE ROPE
\
0-725~90-7ROPE SLACK ROLLER
LOCK NUT ADJUST BOLT
Inst,allation and const,ruct,ion of' guide roller may clif't'er according t,o crane type. Refer t,o the FINLSIIEU PLAN for details.
5-10 GEARED CABLE The special geared cables @ sheathed by plastic jacket @ transmit the control force from each control handle in the operator's cabin to the controller with the motor. 1 . ADJUSTMENT OF NEUTRAL POSITION
If the neutral position of the controller is not ahgned even if the control handle i n the operator' s cabin is set at the neutral position, turn the adjusting bolts and nuts 8 at the cable end on the machinery room side to slide the controller to the neutral position.
1
/i\ CAUTION------ln case of ajusting, maintenance and exchanging, crane keep stop. 2 . EXCHANGE THE CABLE
Cable should be exchanged when condition come under the JUDGEMENT.
JUDGEMENT
(1) When the special cable wears out more than l m m in Dia. (Orignal cable Dia. 7.95mm) (2) When the spiral cable breaks, or when there are more than 2 center wire break.
3 . DISASSEMBLY AND REPLACEMENT PROCEDURE
(1) Remove the fixing pin @ a t the cable end on the handle side. Then the geared cable can be easily separated from the controller.
(2) Remove the bolt @ for gear case with motor controller. (3) Loosen the acljust,ingbolt and nut @ and put the cable out from the gear case.
(4) After disassembly of rach part, replace the geared c:ahle with a new one, if damaged
(5) Take the reverse order for reassembly. Be sure t,o apply grease before reassembling.
IN MACHINERY ROOM
IN OPERATOR'S CABIN
EAREDCABLE
CASE
/
PLASTIC TUBE
CLEVIS
5-1 1 TIGHTENING TORQUE OF BOLTS 1 . CHECKING METHOD
(1) Bolts and nuts shown in group I should be checked visually with eyes before every using and tightened i n fixed torque every three months. (2) Bolts and nuts shown in group I1 should be checked every six months. (3) In case that the paint film is broken at the tightening point and 1 or hammering sound is dull, bolts and nuts may be loose, Then, they should be tightened.
2 . CHECKING ITEMS
1. 2. 3. 4. 5. 6. 7.
GROUP I Crane anchor bolts (Post flange) Crane fitting bolts Gower parts of slewing ring) Fitting bolts of jib Fitting bolts of shaft end for dead-eye thimble Tightening bolt of wire clamp (drum) Fitting bolts of winch fiame Fitting bolts of drum bearing
8. 9. 10. 11. 12. 13.
GROUP II Fitting bolts of pump unit. Fitting bolts of hydraulic cylinder and brake unit Fitting bolts of hydraulic motor Fitting bolts of safety device Tightening bolt of piping flange Fitting bolts of controller and the other fitting bolts
NOTICE......Assembling bolt of hydraulic pump and motor should be tightened with correct torque. Over torque cause hydraulic pump and motor seizure.
5-12 GEARS
Some crane troubles occur from gears damage following wire rope and sling. Gears are one of the most important parts of the crane and they cannot be repaired easily, so it is very important to check them.
/i\ NOTICE.-....Finding out any problems at a later time causes worsening with increasing speed, s o it is necessary to check the gears, and to change lubrication oil at regular intervals.
1 . CHECKING POINT
(1) Internal gear & pinion for slewing ring
(2) Reduction gear for slewing (3) Reduction gear for hoisting.
2 . CHECKING METHOD
(1) Open gear...... Sweep out gear oil 2-3 points and check with the naked eye. (2) Reduction gear. .....Take out some volume of lubrication oil and check whether there is any metal powder worn out or not. (Refer to part 5-6 "Supply Gear Oils")
3 . LIMITED LIFE OF GEAR
(1) Abrasion has become 20% original thickness of any tooth at p i k h circle. (2) There is some bad pitching, sporing and breakage
(3) If there are large quantities of metal powder i n the lubrication oil, change for a new oil and check the gear
CAUSES OF DAMAGE TO THE GEAR AND COUNTERMEASURES Item c Vear
amage 4brasive wear
Symptoms Stain on parallelwcars.
Scratching
Advance to abrasive wear
Cause iard foreign - .particles nixed into the oil.
Scratch scars, teeth sticking and bite causing plastic flow of metal. (Gear dedendum, pinion addendum)
iard foreign matter of araer thickness mixed nto the oil. Contacting - teeth are torn under high pressure Unsuitable lubricant Unsuitable finish Up to temperature for tooth surface Mixed in water and erosion matter Deteriorated due to oxidation Tooth surface with unsuitable finish.
-
I I I I
,
\ I I I
Holes made from erosion I 1 I
jurface atigue
Pitching (Initial pitching
Pitching (Destructive pitching)
Around the pitch line, where the new gear teeth have less slip with each other, tiny bubble-like hollows appear. jnot progressive) Proceed on to pitching. (pitch line, dedendum)
;
'lastic lielding
Rolling Peening
Chips of metal drop off from the surface. leaving rather large dents Agnall occur on addendum
I I
Increase oil viscosity Care in idling operation Protect from mixing-in of water ant erosion matter Change the oil
. Care in idling operatic +
Unsuitable to tooth surface material
I I
1 I
+
- Overload
Finish tooth surface
Using oil of high viscosity Change the gear
----I--
i- \
I
I
Change the gear
Change the gear Interlor b ~ t eof gears with each other.
I
Wavy impression occur on tooth surface
' Add Oil
I-
I
I
Rippling
.
I
I
Spalling
I
No foreign matter be ~ermittedto enter and cleaning the oil. Finish tooth surface
@ i i J
I
I
Corrosive wear
Countermeasure foreign matter be permitted to enter and cleaning the oil.
I 'No I
I
sooring seizing Galling scuffmg
I
.Unsuitable
;
I II
--= =--= -= -F
-
lubricating oil with stick slip.
(
. Using oil of high viscosity
I -
Fatigue breakage
Breakage by advance of crack
I
I
Overload breakage
Surface of breakage show like crystallization of case iron
; I I I
I
Quenching crack
Crack occur on addendum or dedendum.
I
I
I
I I
I
limit Unsuitable finish from tooth surface Over-impact load.
-Inferior heat treatment
. Change the gear
Change the gear
5-13 BRAKE LINING
1 . JUDGMENT
a
(1)The brake lining should be changed when its wear is up to 40% of the original thickness. (min. thickness 3.5mm). (2) The stroke of the brake cylinder should be adjusted at the screw of t h e adjusting nut@.
2 . REPLACEMENT PROCEDURE (1)Take down the cargo, and then rest and set the jib on the jib rest.
1
/i\CAUTION.-----The drum sometimes rotates due to the rope weight when the brake is disengaged. Lock the wire rope.
(2) Loosen the adjusting n u t which tightens the trunnion.
(3) Pull pins@, @ and trunnion@ remove band@, and replace the lining with the new one. (4) At brake "off', adjust the trunnions so that the space between the brake drum and lining is 2mm and confirm t h a t the brake functions properly.
/i\ N O T I C E - - - - ( IUse ) the IHI standard part or equivalents for lining and screws. (2) Tighten the lining mounting s c r e w a firmly. (3) Do not let any oil touch or fall on the brake lin~ng. (4) If the brake slips due to wear of the brake lining and pin, retighten the
adjusting nut, and see that the brake functtons properly.
BAND BRAKE
-
The link parts (mark-)
: GREASE POINT
shall be coated with grease periodically
5-14 HOOK BLOCK 1 . INSPECTION POINTS
(1) Inside of hook or bow shackle
a.
(2) Screw-end of eye-bolt@.
(3) Bolt and split pin of shackle.
(4) Thrust bearing@ and i t s grease charge. (5) The clearance between under part of trunnion@ and joggling parts of eye-bolt@.
(Hooks can not be attached to some types.)
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/I\
1 CAUTlON......I
. The hook and shackle will wear out, creating grooves or openings by the
rubbing from loads when used for a long time. Also, fatigue hardness due to long periods of use may harden and make the material brittle, resulting in cracking. Therefore, besides periodical inspection, carry out a non-destructive test once a year. 2. The result of non-destructive test, replace the new parts if necessary. 3. In case of replacement, use the IHI standard part or equivalents
1 0-
-Do
not use under the following conditions, and replace if necessary.
1. When the worn-out portion exceeds 5% of the original sectional area (Do not repair by means of welding.) 2. When the surface is cracked. (Do not repair by means of welding.) 3. The hook whose opening does not close. 4. When the clearance of above 1-(5) exceed 1-2mm. In this case,cornfirrn that set s c r e a ( 3 sets) for nut@. When set screw is loosening, please tighten set screw and carry out screw-head hitting.(corking) May cause an accident resulting in iniutv or death due to breakinq down of hook block.
I I
5-15 SHEAVES
1 . CHECK POINT
(1) Rope groove (2) Sheave flange
(3) Grease supplying
2 . JUDGMENT
(1) Sheaves should be changecl when wear or tear of rope grooves comes up to 20% of the rope diameter. (2) Sheaves should be changed when cracks or deformities of the flange are evident.
/i\ CAUTION-- - -
In case of replacement, use the IHI standard parts
ROPE GROOVE
n
SHEAVE FLANGE /
CRACK
GREASE ENOUGH
Fig. 2
J Fig.
1
Fig. 3
5-16 OIL COOLER
1 . CHECKING METHOD
(1) Check the oil leakage form core
(2) Check the choke i n core
0.
0.
(3) Check the cracks, breaks and deformities of the propeller fan 0.
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I
NOTICE...-.. In case that.over 20% of the area of the ventilating area is choked, clean up core.
1
0
2 . CLEANING METHOD
Blow compressed air against the core front
3 . CORE EXCHANGING METHOD
In case of oil leakage, take off both hyd. Oil piping and exchange core 0.
NOTICE----- In case of replacement the core, use the IHI standard parts.
5-17 ELECTRIC PARTS
do. ITEMS 1 'lagnetic contactor 1) Iron core
2) Contact tip
3) Spring
2
'hermal Over h r r e n t Relay
3
HOW TO INSPECT & MAINTAIN +See the surface. +If it is found rough or covered with rust, smooth the surface with sand paper. +See the surface. +If the thickness of the contact tip becomes a half of new one or the contact tip is worn out, replace it with spare one. +Confirm t h a t all relays move smoothly by pushing the movable parts with fingers. +If they do not move smoothly, adjust the spring or the movable . parts. +If necessary, replace it wlth a spare one +Confirm that all relays move smoothly by pushing the movable parts with fingers +Confirm that each termmal of relay is connected tlghtly.
nsulation Resistance 1) Induction motor
+Measure it between each phase ( U, V, W, X, Y, Z ) or between earth and each phase. Measuring point : Secondary side terminal of magnetic contactor Insulation resistance : More than 10 M Q 2) Slip ring +Measure it between earth ancl each phase of main circuit, light. & heat. circuit. Measuring point : Secondary side of main switch of ship Insulation resistance : More than 10 M Q ( main ) More. than 1 M Q ( light. & heat. ) 3) Electric equipment +Measure it between earth and phase of each electric equipment. (Light and Heater) (In cases that fuse is melted or circuit breaker is tripped.) Measuring point : Secondary side terminal of circuit breaker for light and heat. Insulation resistance : More than 1 M Q 4 ;lipring Terminal fitting +Make sure the terminal fitting nuts are tightened. If they a n loose. fix them tightly. 1ut Check point : First and Secondary sick terminal of -
A
CAUTION--.-.I.In case of above maintenance, turn off the circuit breaker of main switch
board of the ship. 2. Never start induction motor, if insulation resistance is less than the above value. In this case, remove moisture(damp) by space heater or heating fan.
5-18 TEMPERATURE CONTROLLER (E5CN) FOR PLATINUM RESISTANCE THERMOMETER
.Lave,
N O
*B"
Op~,a,,onma,caiwr lil:Uilm I L " ~ " , , " ~ m , , o l l ~,sapr,a,ing,"nn,on ,~,
.
l blrpla"
.Pmrr ,we] i."and ss 5 Xe"
,ogemsr lor a, leal, a ramno lo r*,bs" 10 ( i r m a ,
iera,
.,a
,.ado",
,"II",".I"P
"a,".
0, C".
'A"A'"'"'
iam,iup*.s alarm 2 l opsrart* ,vnn,on "8. HP.,B, b"rn0"l
.
muned ms valves or ssiiinsr. Ih" aiSp8s"
cato,.
'
L19hll up *nsn Piocsrr con.., 2 is on. gosr a", *"an F'mcsrr CO"ll0l 2 '=on
-
Mooeration menu
Adjustment level
N0.1 display t1~SheSwhen hold es down lor mare than l second
I Hold D d o w n lor a! leas 1 second
Hdd 5 and Ekeys dawn tor a, ,ear,
5-19 ADJUSTMENT OF EMERGENCY LIMIT FOR JIB Adjust the setting position of the interlock limit(L1S-UP) on the luffing up sicle with the luffing & slewing controller installed in the cabin.
937.~1
JIB UP
v k 120-LA
1.
Preparation (1) Check t h a t the power supply(NFB) is turned "Ff. (3) Remove the cover of the luffing &slewing cuntruller
(3) Remove t h e interlock limit(L1S-UP) from its seat.. (4) Remove the fitting bolts a n d t u r n t h e seat. upside down.
(5) T e n ~ p o r a d ymount t h e interlock limit(L1S-L:P) an the seat i n its original clirection.
2.
Adiustrnent (1)Tilt the handle in the raising direction. Fix the interlock limit a t 120.io mm. @)Check t h e operating position of t h e interlock hmit. IL.IS.L~~P) 1)Supply power(hTB). ?)Tilt. t h e hancUe gracluall: in the raising i-hrrctwn. 3)RiIeasure a n d check the position of the handle when it clicks. Repeat t h e above procec-lures unrll the act.liatlon position is writhin the setting r:.>nge. (:VLVhen the interlock Imit(LIS-LIP) acaivat.es within the setting range, attach the cover and finish thc d j u s t m e n t .
/ ~ \ c A u T I o N - - . . . Tspecial ~ ~ ~ care when turning the power ONIOFF to avoid electric shock.
5-44
PART 6 TROUBLE SHOOTING
PART
6-1
CONTROL SYSTEM AND MACHINERY PART
6-2
HYDRAULIC SYSTEM
6-3
ELECTRIC SYSTEM
TROUBLE SHOOTING :
In order to find the cause / remedy of the fault, in a shoot time the trouble shooting sheets are shown in FLOW CEART style.
ADVICE :(MARKX)
In the case of a remedy with an * mark it will required that you contact us to overhaul I reassemble the defective device since the repair must be done by a specially-trained engineer.
MODE OF REFERENCE : MODE NO.
FAULT NO.
- --
YES : CAUSE OF FAULT corresponds to the ACTUAL CONDITION. NO : CAUSE OF FAULT dose not correspond to the ACTUAL CONDITION.
FOR ASCERTAINING :
If you need to the contact us regarding the problem, please inform us of the following : WHEN ; this means what time and during motion dtd the fault occur? WHICH ; thls means which part or whch motion is shorted the function? HOW
; this means how was the problem, the pressure, the
noise, broken out or not, and other reports, as soon as, and in as detailed an account as possible.
...1. Securely turn "OFF" the circuit breaker "NFBP"& "NFBH"in contactor box of crane before inspection and repair of electric equipment. High voltage source(AC440V) is supplied to primary sides of "NFBP" & "NFBH",even if "NFBP" & "NFBH"are off. 2. Securely turn "OFF"the circuit breaker on main switch board of ship, when inspecting or changing "NFBP"& "NFBH"for spare parts, 3. Securely hang the "UNDER INSPECTION" notice card on the circuit breaker on main switch board of ship, not so a s to switch it on by mistake.
6-1 CONTROL SYSTEM AND MACHINERY PART
I
CAUSE ^F FAULT
MODE M-101 crane does not follow the control
REMEDY
F-101 Cam or spring for neutralizing which interlocked with operating handle is out of order.
1
Remove the cover operating handle and adjust cam or roller spring.
I
Acceleration & deceleration of hydraulic motor i s too slow. Speed of hydraulic motor i s not proportionate to the angle of control handle. Speed of hydmahc motor i s unstable. Speed of hydraulic motor does not go to high speed.
\
/
Geared cable and its gear for transmlsslon of control is stuck.
Remove case of geared cable at each end and inspect, clean and lubricate.
Control vahre for hydraulic motor is damaged or stuck.
Overhaul kinspection.
~~-
Speed of hydraulic motor is too fast Hydraulic motor i s stopped short at stopping.
Interlock switch is out of order. G e d cable broken or gear worn out or shaft/ key of gear broken.
Hydraulic motor i s not run in spite
6% PART 6-2, "HYDRAULIC EQUIPMENT' the reverse side. On case of wire slack limit, ush the lamp button "ROPE .after checked wire condition m machinery room.) d e e PART 4-3, Item 4&5.
Induction motor i s stopped when control handle is oeerated.
LACK"
Hydraulic oil temperature is less than=.
M-104 made when control handle ouerated.
Crane is operated with rapid or reverse handle.
1
Control handles have to be returned to neutral position and running operation done until the red "OIL TEMP. HIGH OR L O T lamp on contactor box goes off. -See PART 2-4.Item 3.
4 Operate smoothly.
Open air vent plugs after running at no load and purge
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I
CAUSE OF FAULT
MODE
REMEDY
Brake is not
Repair or replacement
Overhaul and inspection. broken.
Inspecting, repair replacement QSee PART 5-13.
. and
Overhaul and Replacement
M-107 l i b jumps up during hoisting motion.
Alteraton of wire rigging according to FINISHED PLAN.
I
Pull vertically according to NOTICE PLATE. W e e PART 2 4 . Item 8.
I
M-108 Wire rope runs off from sheave.
I
Adjust the position and cl&ance beheen girder and sheave. Normal clearance : 4-6mm.
F-119
1
Pull vertically according to NOTICE PLATE. OSee PART 24. Item 8.
F-120
/
Wild winding rope on drum.
Operate smoothly. reverse handle.
F-121 normally.
Inspect and adjust a m , spring and bearing. OSee PART 5-9.
F-122 specified rope is not used.
1
Exchange with new one that type and length are according to FINISHED PLAN. *See PART 5-8.Item 4.
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-
I
CAIJSE OF FAULT
MODE
Abnormal noise is made from
REMEDY
F-123
Adjusting and repair.
1 Poor lubrication.
Check the kind of grease then lubricate. 0% PART 5-2.
I
Overhaul and replacemcnr
Repair or replacement 0% PART 5-12.
I
Wire rope's life is necessary to have additional spare rope.
6-2 HYDRAULIC EQUIPMENT MODE Abnormal noise from hydraulic
When t h e pumps are started a t low temperature, the n o i s e is louder than
CAUSE OF FAULT
1
REMEDY
F-201 tank line.
Open it fully a t all times. Osee PART 5-1.
I
Clean the oil filter element *See PART5-7.
I
F-202 Cavitation a t suction line by filter clogging.
7
Cavitation by high viscosity of hyd. oil at low temperature.
1
Warming-up operation. -See PARTZ-4, Item 3.
Air pwging. If the oil become clouded,
leave as it i s for a few hour.
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'
Overhaul and replacement
*
4 Overhaul and reolacement
I
7
I
F-207 and induction motor is out of order.
Adjust the centering. 0%
PART 3-2,Item 3.
M-202 hydraulic oil rises
Main electric motor i s often stopped by thermostat for high temperature.
Repair ur mplaucmenr
F-210 decreased by dust
Oil through cooler is reduced. 1) Oil is by-passed by the resistance of oil flow. 2) Cooler by-pass valve trouble.
1
Clean the fin by steam or compressed air. Osee PART 5-16, ltem 2.
)
1) E l c h a n ~ ethe eon.. *See PART 5-16, ltem 3. 2) Overhwl and insmcuon of
cooler by-pass vilve.
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I
MODE
CAUSE O F FAULT
I
REMEDY
INO Operate decreasing the cycle
I
M-203
t O i l p r e s s u r e is
I
Assemble conectlv.
not created.
I 1) correct the rotational direction. 2) Correct the connection of terminal of induction motor. 1) Overhaul and Lnspcdng 2) Repair or rcplacemenr
1) Adjusting screw is loosened. 2) Spring i s broken. 3) Spool i s stuck. 4) Poppet is clogged with d u s t
-See
PART 3-5.
*
4 Overhaul and replacement
I
I ) Overhnul and inspecting 2) Keplir or raplocmwnr
I
M-204 Hydraulic motor troubles.
trouble.
t
1
M-205
Light load can be hoisted but rated load cannot.
M-206
Relief valve provided at hydraulic motor houhles. 1)Adjusting screw is loosened. 2) Spring is broken. 3) Spaol is stuck. 4)Poppet is clogged with d u s t
is n o t reduced.
I Overhaul and replacement
Hydraulic motor casing and mtor are worn due to the seizure.
M-207 reduced o n light
I
~p
Pump shaftscored due to the
M-204
I
1) Overhaul and inspect 2) Repair by lapping valve sear 3) Replacement
is broken.
(Hydraulic pump tmuhles.
.I
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CAUSE OF FAULT
MODE M-208 at lowering.
Cnunter balance valve is stuck (Due ro lack of back pressure or sudden sronnim ocention.)
M-209
REMEDY
7
t1 ,,>a
I ) Re-sci ihc hack pressure over 03hPa. 2) Srnooth~.nthe opcntiun.
*
4 Overhaul and inspection.
I
at jib lowering.
M-210 shock at starting.
M-211
F-223
F-224
; cxccssivc& shock at stoppmg.
* Overhaul and inspection.
motion at inclination
/Slewlna
1)Re-set the relief valve. 2) Overhaul and inspecting.
hydraulic motor is too high or stuck.
F-226 Trouble with cushion valve in slewing motor.
F-103 motor.
I
6-3ELECTRIC PART CAUSE OF FAULT
MODE M-301
the source breaker (NFBP) is turned on.
I
REMEDY
Fa01 switch board is turned off.
should he turned on.
I
Replace i t
Replace i t
NO F-304 1) Replace the brush or holder. 2) Re-tighten or replace i t
1) Damage of brush or holder. 2) Looseness of terminal.
Connect or replace i t
M-302 start even if "START" button is pushed.
hipped or the thermostat (THP] the motor is tripped. "MOTOR OVER LOAD" lamp
t
G307 Conb-01 lever is not in neutral.
Oil level in tank is low. "LOW OIL LEVEL" lamp (RL) lights up.
11
1)Push the reset button. eSee PART 4-5,Item 2. 2) Wait till the temperature of motor cools. Check the thermostat by tester to see if the motor is cool.
in
YES
1) Retum the lever to neutral. 2) Adjust the micro switch -See PART 2-6,Item 5.
-See PART 55. 2) Check the float switch.
F-309 is damaged.
2) Check the movement of
starting relays. F-310 Main contactor [UP-1, -2, 6P1 is burnt o u t
Replace i t
4 Check and replace it
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I
CAUSE O F FAULT
MODE
REMEDY
Disconnecting in slipring.
F312
h-A Timer [ T 3 1 is damaged.
not changed h m A to A .
Motor is stopped at Changing h m h
Replace i t
4 Replace i t
I
) Contact is disconnected.
/ /
Thermal relay 1 5 r 4 ,is tripped a t cha ing from
Breaker [NFBPI i s tripped at changing from h to A .
+-,
Open-phase operation by the accident of contactor [42P-21.
1) Check the contact 2) Replace the spring.
I
1) Chack the contactor. 2) Change the contactor spring.
I
I F-316 The contactor between [6P1 isthe phases short-circuited by rust or some causes.
viscosity of system oil is higher. When the temperature is extremely low.
/i\
1) Check contact tip.
a t sufficient intervals. Osee PART2-4, Item 3. 2) Set the timer [T31 a t 10-15 see.
NOTICE...... The accidents above mentioned scarcely happen. But if these accidents happen due to same cause, careful attention must be paid. Since these accidents cause serious accidents which burn out the motor.
I
CAUSE OF FAULT
MODE M-307
REMEDY
F-318 C'LIMITING" lamp (RL) lights up.)
operated.
The tempenture of system oil is over 70% or below 5 % "OIL TEMP.HIGH & L O P lamp (RL) lights up.
.
Operate the control lever to opposite side.
Run the motor without load till the red lamp goes off.
4 Replace i t F-305
(
t Cable breaks.
1
Breaker C NFBPI is hipped. (Hoist motion can not be operated.)
Search the short point by
checking megger. Repair i t
M-309 oil rises up extremely. ( C m e can not be operated.)
F-325 Replace i t does not run.
damaged.
F-326 Replace i t damaged.
Check and replace i t
F-305 Cable breaks.
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IHI Deck Machinery Service Network
Japan Offices
I I HI
,
Shikoku B r a n c h
1 1 ~ 1Marine Nagoya
Eng'r Office
I
I
IHi Tokyo Head Offie
Shin Ohtemachi Building, 2-1. Ohtemachi 2-chame. Chiyoda-ku. Tokyo 100-8182, Japan
(03)3244-6410 (03)3244-5775
IHi
Hiroshima Mitsui Building, 7-10. Ohtemachi 2-chome, Nakaku. Hiroshima 730-0051. Japan
(082)246-2285 (062)246-2100
0
ShikDku Branch
ChiyadaSeimei Takarnatsu Building. 4-20. Kotabuki-cho 2-chome. Takamatsu 760-0023, Japan
(087)821-5031 (087)822-7893
0
Kyushu Branch
Denki Building 1-82. Watanabe-dori 2-chome, Chuo-ku, Fukuoka 810-0004. Japan
(092)771-7241 (092)751-6416
0
1Hi Marine Tokyo Sales Office
Fuundo Building, 2. Kanda Ogawa-machi I-chome. Chiyoda-ku. Tokyo 101-0052, Japan