GENERAL INFORMATION
OVERVIEW (FRONT) Operating Weight : 45.7 t ( ZX450-3 Class )
001
OVERVIEW (REAR)
002
-1-
Model Configuration 1) ZX450-3 (Standard Model) ZX470LC-3 (Standard Model with Long Undercarriage) ZX470H-3 (Heavy-Duty Model) ZX470LCH-3 (Heavy-Duty Model with Long Undercarriage) ZX470R-3 (Heavy-Duty Model with for Recky Landscape, Rugged Job Site.) ZX470LCR-3 (Heavy-Duty with Long Undercarriage for Recky Landscape, Rugged Job Site.)
-2-
OVERVIEW (SIDE)
003
OVERVIEW (TOP) Air Cleaner
(ZX470H-3 Type (B/H)
Hydraulic Oil Tank Engine
Fuel Tank
Electrical Component 004
-3-
SPECIFICATION COMPARISON MODEL Std. Bucket Capacity Operating Weight
ZX450-3
ZX470H-3
ZX520LCH-3
m (New JIS)
1.9
1.9
1.9
ton
45.7
48.1
51.7
Isuzu
Isuzu
Isuzu
Isuzu AH-6W41XYA-01
Isuzu AH-6W41XYA-01
Isuzu AH-6W41XYA-01
3
ENGINE Engine maker Model Bore
mm
147
147
147
Stroke
mm
154
154
154
cm
15681
15681
15681
kW(PS)
260(353)
260(353)
260(353)
rpm
1800
1800
1800
N⋅m/min
1580/1500
1580/1500
1580/1500
L
725
725
725
VD Swash Plate
VD Swash Plate
VD Swash Plate
Displacement Engine max.output Engine max.output at Engine max. torque / Engine speed Fuel tank capacity
3
-1
HYDRAULIC SYSTEM Main pump type Main pump max flow
367 X 2
367 X 2
367 X 2
2
31.9(325)
31.9(325)
31.9(325)
2
34.3(350)
34.3(350)
34.3(350)
2
34.3(350)
34.3(350)
34.3(350)
2
27.9(285)
27.9(285)
27.9(285)
2
MPa (kgf/cm )
3.9(40)
3.9(40)
3.9(40)
L
560
560
560
Max. Digging Reach
mm
12,050
12,060
12,060
Max. Digging Depth
mm
7,760
7,770
7,690
Max. Cutting Height
mm
11,080
11,060
11,130
Max. Dumping Height
mm
7,660
7,650
7,730
Min. Turning Radius (at Work)
mm
4,840
4,840
4,840
Swing Speed
rpm
9.0
9.0
9.0
Travel Speed
km/hr
5.5/3.4
5.5/3.4
5.5/3.4
kN
322
322
322
%(°)
70(35)
70(35)
70(35)
Max. Digging Force with Std. Arm (at Power Boost)
kN/ISO
200(215)
218(209)
Max. Digging Force with Bucket (at Power Boost)
kN/ISO
259(279)
288(250)
Overall Transport Length
mm
11,880
11,910
Overall Transport Width
mm
3,000
3,770
Overall Transport Hight
mm
3,465
3,450
Cab Height
mm
3,285
3,450
3,520
Overall Undercarriage Length
mm
5,060
3,490
5,330
Distance between Tumbiers
mm
4,040
4,040
4,250
Overall Undercarriage Width (Retracted)
mm
3,490
2,990
3,520
Min. Ground Clearance
mm
723
723
840
Min. Ground Clearance of Upperstructure
mm
1,360
1,360
1,470
Rear-end Swing Radius
mm
3,645
3,645
3,520
3/8
3/8
3/8
Main Relief Pressure(Digging) Main Relief Pressure(Power Boost) Main Relief Pressure(Traveling) Main Relief Pressure(Swing) Main Relief Pressure(Pilot) Hydralic Oil Capacity
I/min MPa (kgf/cm ) MPa (kgf/cm ) MPa (kgf/cm ) MPa (kgf/cm )
OPERATING RANGE
REFORMANCE
Traction Force on Catalog(Measured) Gradeability
DIMENSIONS
Number of Rollers (upper/lower)
3,860
Std. Shoe Width
mm
G600
G600
G600
Ground Pressure
kPa
81
88
91
-4-
CAB(STANDARD) CRES II CAB
005
CAB (HEVEY-DUTEY) ROPS & FOPS Type Cab (H-Type)
FOPS Type
006
-5-
CRES II Cab (STD. Type) •
ROPS Cab Roll Over Protective Structures.
H/R Cab (NEW H-Type) •
ROPS & FOPS Cab Falling Object Protective Structures. Appearance and Inner Globe Are Common To ZX-3 Medium Class Excavator STD.-Type Cab
Medium Class Excavator H-Type Cab
Upper/Lower Stationary, Round Laminated Glass
Upper/Lower Stationary, Round Laminated Glass
Upper/Lower Stationary, Round Tempered Glass
Upper/Lower Stationary, Straight Laminated Glass
Front Gard Seat
N/A
stick
N/A
stick
Head Guard
N/A
N/A
N/A
stick
Head Guard Seat
N/A
stick
N/A
stick
Scuttle
N/A
Steel/Openable
Steel/Openable
Polycarbonate/Fixed
2.5-Fold Incease
4-Fold Incease
9-Fold Incease
9-Fold Incease
Front Window
With standing Load
-6-
Large Class Large Class Excavator STD.-Type Excavator H/R-Type Cab Cab
AIR CONDITIONER (FRESH AIR FILTER)
Fresh Air Filter
0682-008
AIR CONDITIONER (CIRCULATING AIR FILTER)
Circulating Air Filter
0682-009
-7-
Air Conditioner •
•
Fresh Air Filter ................... Clean Filter Interval : Every 250 hours Replacement Filter Interval : Every 1000 hours
Circulating Air Filter ........... Clean Filter Interval : Every 250 hours Replacement Filter Interval : When Excessively Restricted
-8-
CAB INTERIOR
Monitor
Solar Radiation Sensor
Right Control Lever
0682-010
CAB FLOOR
Anchor Bolt Water Drain Hole & Plug 0682-011
-9-
-10-
PILOT CONTROL SHUT-OFF LEVER
Pilot Control Shut-off Lever 0682-016
PILOT CONTROL VALVE & SHUT-OFF SWITCH Pilot Valve
Gate Lock Switch
0682-017
-11-
Pilot Control Shut-off Lever Lock valve was changed to the solenoid valve. Purpose: The improvement of the air proof turn in the cab. •
•
Un Look Position Can be Operated (an Engine Doesn’t Starter) Lock Position Can’t be Operated
UN Lock Position
M1U1-01-024
-12-
Lock Position
M1U1-01-025
EMERGENCY ENGINE STOP SWITCH
Upper
Lower Emergency Engine Stop Switch 0682-012
MULTI-FUNCTION MONITOR
0682-013
-13-
Emergency Engine Stop Switch •
Switch Position Upper Side : Engine Start Lower Side : Engine Stop
1
2
3
4
5
6
7
8
9 22
10
11 12 13 14
15
21 1 - Work Mode Display 2 - Auto-Idle Display 3 - Overload Alarm Display (Optional) 4 - Auto Lubrication Display (Optional) 5 - Auxiliary 6 - Glow Display
20
19
18
17
16
7 - Work Mode Display 8 - Hour Meter 9 - Auxiliary
13 - Fuel Consumption Gauge 14 - Clock 15 - Back-Screen Selection
18 - Mail Selection (Optional) 19 - Auxiliary Selection 20 - Work Mode Selection
10 - Fuel Gauge
16 - Menu
21 - Return to Primary Screen
11 - Mail Display (Optional) 12 - Auto Lubrication Display (Optional)
17 - Auxiliary Selection
22 - Coolant Temperature Gauge
Rear Side Display on The LCD Monitor
Light on Monitor
-14-
SWITCH PANEL (RIGHT)
Right Control Lever
0682-014
SWITCH PANEL (LEFT)
Becon Light Switch (Option)
Rear Work Light Switch (Option)
Fan Rotative Direction Selector (Option)
AutoLubrication Switch
Level Check Switch
Seat Heater Switch (Option)
Travel Alarm Cancellation Switch (Option)
Boom Mode Selector Switch
016
-15-
Switch Panel (Right) Engine Control Dial
Auto -idle S witch
Wiper/Washer Switch
Work Light Switch
Power Mode Switch
Travel Mode Switch
Key Switch
Switch Panel (Left) Front
Armrest
Switch Location
Travel Alarm Deactivation Switch (Optional) Seat Heat Switch (Optional) Overload Alarm switch (Optional)
Boom Mode Switch Engine Oil Level / Coolant Level Switch Auto -Lubric ation Switch (Optio nal)
Switch Panel
Rear Light Switch (Optional) Rotating Light Switch (Optional) Fan Rotation Direction Switch (Optional) (9)
M1J1-03-001
Rear
-16-
M1J1-01-027
REAR TRAY Glove Compartment
Hot & Cool Box
Fuse Box
0682-018
REAR TRAY ELECTRICAL PARTS Main Controller (MC)
Fuse Box
Pump Learning Switch
Relay Box
Information Controller (ICF)
Dr.ZX Connector
0682-019
-17-
Fuse Box
Fuse Box
Addit ional Fuse B ox
CONTROLLER 5A
OPTION3 5A
BACKUP 10A
SW. BOX 5A
ECM 30A LUBRICATOR 10A
GLOW. R 5A
OPTION1 5A
AUXILI ARY 10A
HEATER 20A WIPER 10A LAMP 20A
PCV 15A LIGHTER 10A ROOM LAMP/RADIO 5A HORN 10A
AUTO L UB. 10A
SPARE
LIGHT1 10A
SPARE
SPARE
SPARE
AUXILI ARY3 5A
SPARE
QYICK HITCH 5A
SPARE
IMOBI 5A 12V UNIT 10A CAB LAMP REAR CAB LAMP FRONT 10A SEAT HEATER 10A
-18-
AIRCON 5A
OPTION2 10A
SOLENOID 10A M1J1-01-021
POWER ON 5A
M1GR-01-003
SPARE AUXILI ARY2 10A WARNING LAMP 10A CAB LAMP FRONT+2 10A SEAT COMPR. 10A M1GR-01-003
ENGINE ISUZU ENGINE AH-6WG1XYA-01 350PS/1800 rpm
019
MAIN FUEL FILTER Bleed Plug
Priming Pump
Main Fuel Filter
0682-022
-19-
Engine •
Manufacturer ..................... Isuzu
•
Model ................................ AH-6WG1XYA-01
•
Type .................................. Diesel, 4-Cycle, Water-Cooled, Imline, Direct Injection
•
Cyl.No-Bore × Stroke ........ 6-147 mm x 154 mm (5.79 in x 6.06 in)
•
Piston Displacement ......... 15681 cm (957in )
•
Rated Output..................... 260 kW/1800 min (353 ps/1800 rpm)
•
Compression Ratio............ 16.0
•
Dry Weight ........................ 1153 kg (254216)
3
3
-1
Main Fuel Filter (2 Pcs) •
Replacement Interval : Every 500 houes.
Recommended Fuel •
Use high quality DIESEL FUEL only (JIS K-2204) (ASTM 2-D) Kerosene must NOT be used.
-20-
PRE-FUEL FILTER
Pre Fuel Filter
021
OIL FILTER
022
-21-
Pre-Fuel Filter (1 Pc) •
Replacement Interval : Every 500 hours.
Engine Oil Filter (2 Pcs) •
Replacement Interval : Every 500 hours
-22-
COOLEDE EGR SYSTEM EGR Valve
EGR Cooler
Boost Temperature Sensor
Boost Pressure Sensor 0682-024
COMMON RAIL SYSTEM & SENSORS Pressure Control Valve
Common Rail
Supply Pump
Common Rail Pressure Sensor G Sensor
Fuel Temperature Sensor
0682-025
-23-
Cooled EGR (Exhaust Gas Re-Circulation) System. •
Exhaust gas recirculation system is abbreviated to EGR system. It recirculates parts of exhaust gas into intake manifold to m ix an inert gas with intake air. This leads to lower the combustion temperature to limit emissions of nitrogen oxide. (Nox)
1. Engine Control Module (ECM) 2. Various Sensor Inputs 3. Exhaust Gas Re-circulation ((EGR) Valve) 4. EGR Cooler 5. Engine Coolant 6. Intake Air 7. Exhaust Gas
Fuel Temperature Sensor Boost Temperature (°C)
-40
120
Output (V)
4.98
1.17
Common Rail System •
The common rail system uses a type of accumulation chamber called a rail to store pressurized fuel, and in jectors that contain electronically controlled solenoid valves to inject the pressurized fuel into the c ylinders.
Flow Damper
Supply Pump (PCV Type) Pressure Control Valve (PCV)
Common Rail
Common Rail Pressure Sensor Pressure Limiter
Common Roil Pressure Sensor 0 MPa− ................ 1.0 V 200 MPa.............. 4.2 V
Feed Pump
G Sensor G Sensor Detects the G Sensor Rotation and Identifies the Cylinder. •
Fuel Temperature Sensor Fuel Temperature (°C)
-30
120
Output (V)
4.5
0.19
-24-
G Sensor Gear
3-Lobe Cam
STARTER & CRANK POSITION SENSERS
Engine Oil Pressure Sensor
Crank Position Sensor
Starter
0682-027
COOLANT TEMPERATURE SENSOR
Glow Plug Connector Terminal Coolant Temperature Sensor
0682-026
-25-
Crank Position Sensor (CKP) Detects the engine speed. ECM reads Pulse signal an d obtains the engine speed and injection timing based on the signal.
Engine Oil Pressure Sensor Detects the engine oil pressure. The resistance value in the engine oil pressure sensor changes according to the Pressure.
Coolant Temperature Sensor Coolant Temperature Output (V)
-40 °C
0 °C
40 °C
120 °C
5.0
3.0
1.5
0
Fail-sate: Changes to 80 °C in Case of Abnormality.
-26-
ALTERNATOR
Alternator
Air-con. Compressor
0682-028
OVERHEAT SWITCH
Overheat Switch
028
-27-
Alternator •
Type .............................................AC Type (with IC Regulator)
•
Voltage/Output .............................24 V/50 A
Air Conditioner •
Cooling Ability...............................16.7 MJ/h (4000 kcal/h)
•
Cooling Air Volume .....................550 m /h or More
•
Heating Ability ..............................21.0 MJ/h (5000 kcal/h)
•
Heating Air Volume.......................400 m /h or More
•
Compressor Oil Quantity..............180 cm
3
3
3
Overheat Switch •
In Addition Buzzer of Machine mor e than Above 105 °C
•
Fuel Quantity Decrease Above 100 °C
108 °C
100%
w o l F l e u F
120 °C
105 °C Coolant Temperature
-28-
INTAKE-AIR TEMPERATURE SENSOR
Intake-Air Temp. Sensor
029
ENGINE LEVEL SWITCH
Engine Oil Level Switch
0682-030
-29-
Intake-Air Temperature Sensor •
High Voltage Fault : More than 4.95 V
•
Low Voltage Fault : Less than 0.1 V
Engine Oil Level Switch
-30-
ENGINE OIL PAN (1)
Oil Pan Drain Valve
031
ENGINE OIL PAN (2)
0682-031-1
-31-
Engine Oil: 57L(15.1us gal) • •
Replacement Interval : Every 500 Hrs. Recommend Engine Oil Supper Wide ................ DH-1 10W30(-20 To 30 °C) Supper Wide ................ DH-1 15W40(-15 To 45 °C)
Cap of oil Pan Drain Valve
1. Remove cap from oil pan drain valve. Install drainer to the drain valve. 2. Screw drainer into drain valve, Drain valve will be opened to drain oil.
Drainer
3. After all oil has been drained, remove drainer. Install cap to drain valve.
Oil
Oil an
Drain Valve
Screw Drainer
-32-
AIR CLEANER LAYOUT
Air Cleaner
033
AIR CLEANER (OUTER & INNER ELEMENT)
Inner Element
Outer Element
034
-33-
Air Cleaner
Air Cleaner Outer Element • •
Cleaning Interval : Every 250 hours or When the Restriction Indicator Comes On. Replace Interval : After Cleaning Six times or After One Year.
Air Cleaner Inner Element •
Replace : When Outer Element is replaces.
nner
Outer Element
-34-
ement
ELECTRICAL PARTS COMPARTMENT Battery
035
ELECTRICAL PARTS Fusible Link
Glow Plug Relay
Battery Relay Starter Relay
036
-35-
Battery • • • •
Type ............................. 195 G 51-MF Capacity ....................... 170 Ah (20 hour rate) Voltage ......................... 12 V × 2 Weight .......................... 41.0 kg (90 IL × 2) Recommended range of specific gravity by electrolyte temperature 40°C (104°F) 20°C (68°F)
Fluid Temp.
Working Range
0°C (32°F) *20°C (*4°F) *40°C (*40°F)
1.21
1.22
1.23
1.24
1.25
1.26
1.27
Specific gravity of battery fluid
Battery Relay •
Voltage/Current ............ 24 V/100 A
Fusible Link • •
Red............................... 45 A Black ............................ 75 A
-36-
1.28
1.29
1.30
1.31
1.32
UTILITY SPACE
037
ECM & BAROMETRIC SENSOR Washer Tank
ECM
Barometric Sensor
Washer Motor
Data-Link Connecter
038
-37-
ECM (Engine Control Module) •
ECM (Engine Control Module) The ECM controls flow rate of the Supply Pump and energization timing and energization duration of the Injector in order to achieve most appropriate injection pressure, injection time and injected fuel amount in response to signals sent from sensors m ounted on the engine or main body. The ECM also controls open/close of the EGR Valve.
Barometric Sensor Intake Air Temperature (°C) Output Voltage (V)
-40 °C
120 °C
4.8691 V
0.1797 V
Fail-Sate: Takes The Value of The Water Temperature Sensor In Case of Abnormality.
-38-
COOLING SYSTEM (FAN COVER & SCREEN)
039
COOLING SYSTEM (AIR CONDENSER, FUEL COOLER)
A/C Conditioner Condenser
Fuel Cooler
040
-39-
Oil Cooler Front Screen •
Clean Oil Cooler Front Screen Interval : Every 500 hours.
Fuel Cooler • •
Fin Type........................ Wave Fin Capacity ....................... 0.2 L
Air Conditioner • •
Cooling Ability............... 16.7 MJ/h (4000 kcal/h) Heating Ability .............. 21.0 MJ/h (5000 kcal/h) or more
-40-
COOLING SYSTEM (INTER-COOLER, RADIATOR AND OIL COOLER) Inter-Cooler
Radiator
Oil Cooler 041
RESERVE TANK
Reserve Tank
042
-41-
Radiator • • • •
Type ............................. Parallel Type Capacity ....................... 15 L (4 us gal) 2 Cap Opening Pressure 49 kPa (0.5 kgf/cm , 7 psi) Coolant Capacity.......... 55 L (14.5 us gal)
Oil Cooler • • •
Type ............................. Parallel Type Capacity ....................... 15.6 L (4.1 us gal) Clean Front Screen Every 500 hours
Inter Cooler • •
Type ............................. Tandem Type Capacity ....................... 20 L (5.3 us gal)
Fuel Cooler •
Fin Type........................ Wave Fin
Reserve Tank • • •
Check Coolant Level.... Daily Clean Core Every 500 hours Change Coolant Every Two Years or 4000 hours Whichever Comes First
-42-
COOLING FAN
1120 mm Large Hybrid Fan
043
-43-
Cooling Fan •
Dia 1120 mm, 6 Blades Draw-in Type
-44-
LEFT VIEW (Pump Compartment & Utility Space)
044
PUMP COMPARTMENT
Pump 1
Pump 2
Pilot Pump
Fan Pump
045
-45-
Pump Device •
Drive Gear Ratio .......... Engine: 1 : Pump (1) 32/31, Pump(2) 1 Fan Pump 1 Pilot Pump 32/31
Main Pump • •
Type ......................................................... Variable Displacement Swash Plate Plunger Pump Maximum Flow (Theoretical Valve) .......... 367 L/min (97 usgpm) × 2
Fan Pump • •
Type ......................................................... Variable Displacement Swash Plate Plunger Pump Maximum Flow (Theoretical Valve) .......... 65 L/min (17 usgpm)
-46-
PILOT PUMP
Pilot Pump
046
REGULATOR & SENSORS Pump 2, Control Solenoid Valve
Pump 1, Control Solenoid Valve
Pump 2, Regulator Pressure Sensor
Pump 1, Regulator Pressure Sensor
047
-47-
Pilot Pump • • •
Model .....................................................HY/ZFS 11/16.8R Type .......................................................Fixed Displacement Type Gear Pump -1 Maximum Flow (Theretical Valve)..........31.2 L/min at 1800 min -1 HP Mode: 32.1 L/min at 1850 min
Sensor Activation Range • • • •
Engine Control Dial ........... Max. Speed Power Mode ...................... P Mode Work Mode........................ Digging Mode Auto-Idle ............................ OFF Specification
Sensor Engine Control Dial Pump Regulator Pressure Sensor Pump Delivery Pressure Sensor
Min.Speed
0.3V to 1.0 V
Max.Speed
4.0V to 4.7 V 2
Control Lever: Neutral
Pump1: 0.49 MPa (5.0 kgf/cm ) 2 Pump2: 0.44 MPa (4.5 kgf/cm )
Control Lever: Neutral
0.3 To 0.5 MPa (3 To 5 kgf/cm )
2
Boom Raised & Cylinder Relieved
-48-
2
31.9 MPa (325 kgf/cm )
FAN PUMP Fan Pump Control Solenoid Valve
Fan Pump 048
PILOT FILTER & DRAIN FILTER Pilot Relief Valve
Pilot Filter
Pump Drain Filter
049
-49-
Fan Pump P-Q Diagram • • •
-1
Rated Pump Speed: 1750 min (rpm) Power Mode Switch: P Mode Hyd. Oil. Temperature : 50 °C
Delivery Pressure 2, Mpa (kgf/cm psi)
Flow Rate L/min (usgpm)
A
7.8 (80, 1134)
Approx 63 (17)
B
23.2 (235, 3373)
Approx 59 (16)
C
26.2 (265, 3809)
Approx 52 (14)
L/min 75 A B C 50 Flow Rate 25
0 0
5.0 (51)
10.0 (102)
15.0 (153) Delivery Pressure
Pilot Relief Valve •
Primary Pilot Pressure ...........................40 MPa
Pilot Filter and Pump Drain Filter •
Replacement Interval : Every 1000 Hrs
-50-
20.0 (204)
25.0 (255)
MPa (kgf/cm2)
HYD.COMPONENT LAYOUT Control Valve
Si nal Control Valve
Coolant Reserve Tank Solenoid Valve Unit
Swing Motors
050
HYD.COMPONENT
Swing Device
Swin Relief Valve
Swing Relief Valve
051
-51-
Control Valve • • •
•
Model ................................................UA36-100 Type ..................................................Pilot Pressure Operated Type (4 Spools + 5 Spools) 2 Maim Relief Set-Pressure .................Normal: 31.9 MPa (325 kgf/cm , 4638 psi) 2 Power Digging: 34.3 MPa (350 kgf/cm , 4987 psi) Overload Relief Set-Pressure ...........Arm , Backet, Boom, Aux, Close 2 35.3 MPpa (360 kgf/cm , 5132 psi) Aux Open 2 27.9 MPa (285 kgf/cm , 4053 psi)
Swing Device • •
Type ..................................................Two-Stage Reduction Planetary Gear Reduction Gear Ratio........................16.563
Swing Motor • •
Model ................................................M5X130CHB Type ..................................................Swash-Plate Type, Fixed Displacement Axial Plunger Motor
Swing Speed................................ 20.0 sec/3 rev Swing Parking Brake • •
Type ..................................................Multi-Disc-Wet Negative Type 2 Release Pressure.............................. 1.9 To 0.8 MPa (19 To 28 kgf/cm , 276 to)
-52-
SIGNAL CONTROL VALVE Signal control Valve
052
SOLENOID VALVE Solenoid Valve Unit
Solenoid Valve (SC) Solenoid Valve (SF) Solenoid Valve (SI) Solenoid Valve (SG)
053
-53-
Signal Control Valve •
Function .................. Shock Reducing (Boom Raise) Arm Flow Rate Control Valve Control Swing Parking Brake Release Flow Combiner Valve Control
Solenoid Valve Unit •
Function .................. SG: Power Digging Control SI : Travel Mode Swash Angle Control SF : Boom Flow Rate Control Valve Control SC : Boom Mode Selector Control
-54-
PRESSURE SENSOR BLOCK
Pressure Sensor Block
054
PRESSURE SENSORS Pressure Sensor (Boom Raise)
Pressure Sensor (Bucket Roll-in)
Pressure Sensor (Arm Roll-in)
Front
Rear
Pressure Sensor Pressure Sensor Pressure Sensor (Boom Lower) (Bucket Roll-out) (Arm Roll-out) Pressure Sensor (Travel- R)
Pressure Sensor (Travel-L) 055
-55-
Pressure Sensor Block
Pressure Sensor Activating Range Control Lever: Neutral Pilot Control Shut-Off Lever: Lock
0 to 0.49 MPa 2 (0 to 0.5 kgf/cm )
Control Lever: Full Stroke
2.45 to 3.9 MPa
Pilot Control Shut-Off Lever: UnLock
2
(25 to 40 kgf/cm )
-56-
CONTROLVALVE (MAIN RELIEF VALVE) Overload Valve (Boom Lower) 35.3 MPa
Main Relief Valve 31.9 MPa
Overload Valve (BKT. Roll-out) 35.3 MPa
056
CONTROL VALVE (OVERLOAE RELIEF VALVE) Overload Valve (Arm Roll-out) 35.3 MPa
Overload Valve (Boom Mode) 35.3 MPa Overload Valve (Auxiliary)
057
-57-
Main Relief Valve •
2
Set Pressure ........... Normal : 31.9 MPa (325 kgf/cm ) at 340 L/min 2 Power Digging : 34.3 MPa (350 kgf/cm ) at 340 L/min
Overload Relief Valve •
Set Pressure ...........Arm, Bucket, Boom, Auxiliary Close 2 35.3 MPa (360 kgf/cm ) at 110 L/min Auxiliary Open 2 27.9 MPa (285 kgf/cm ) at 110 L/min
-58-
ACCUMULATOR
Accumulator
058
BOOM BOTTOM PRESSURE SENSOR Distribution Valve (Optional)
Horn
Boom Bottom Pressure Sensor 059
-59-
Accumulator Gas Plug
Body
Poppet
Nitrogen Gas (N2)
Bladder
Holder
Pilot Pressure Oil Oil Port
A T105-02-10-003C
-60-
HYDRAULIC TANK
Air Breather
Full-Flow Filter
060
HYDRAULIC OIL TEMPERATURE SENSOR
Drain Cock
Hydraulic Oil Temperature Sensor
061
-61-
Hydraulic Tank •
Tank Capacity.................... 560 L
•
Change Hydraulic Oil and Suction Filter Cleaning : Every 4000/2500/1500 hours
•
Replace Hydraulic Oil Tank Filter Interval : Ever y 1000 hours
•
Replace Air Breather Filter Interval : Every 4000 hours
-62-
FUEL TANK
062
FUEL LEVEL
Fuel Level Switch
063
-63-
Fuel Tank •
Tank Capacity.................... 725 L
-64-
UNDERCARRIAGE
064
FRONT IDLER
065
-65-
Side Frame Hevery -Duty Type Full Track guards are Provided Standard
Standared Type
Reinforced Idler Bracket
F
A B E C A
D
ZX450-3
ZX450
A
19
12
B
28
28
C
28
22
D
19
19
E
16
12
F
482
482
-66-
ZX-1
178 mm
ZX-3
298 mm
ROLLER & TRACK LINK
066
Upper Roller U
er Roller
067
-67-
Master Pin of Track Link
Upper Roller
C A
B
-68-
ZX-1
ZX-3
A
175 mm
175 mm
B
100 mm
100 mm
C
30 mm
35 mm
RAVEL DEVICE
068
TRAVEL MOTOR Travel Motor Drain Line
High/Low Shift Line
Travel Relief Valve
Counterbrace Valve
069
-69-
Travel Device • • •
Type .................................. Three-Stage Planetary Gear Reduction Reduction Gear Ratio........ 55.318 Change Oil Interval : Every 2000 hours Oil Capacity ....................... 11 L × 2
Travel Motor •
Type .................................. Swash-Plat Type Variable Displacment Axial Plunger Motor
Travel Brake Valve • •
Type .................................. Counterbalance Valve 2 Relief Set Pressure ........... 36.8 MPa(375 kgf/cm )
Travel Parking Brake •
Type .................................. Multi-Disc-Wet Negative Type
Travel Speed • •
Fast Speed ........................ 13.0 sec/20 m Slow Speed ....................... 20.0 sec/20 m
-70-
CENTER JOINT (1)
Front
Rear
Travel Speed Travel Change Pressure Line
Drain Line
070
CENTER JOINT (2)
Drain Line
Travel Speed Change Pressure Line
071
-71-
-72-
FRONT ATTA TTACHIMENT CHIMENT
072
BUCKET
073
-73-
Heav-Duty Type
Heavy-Duty Type
STD-Type Teeth
H-Type Teeth
Bucket Teeth Bucket Teeth are reshaped as Super-V43 teeth for smooth penetration and higher production. Check Bucket Teeth .......... Daily. Replacement Intervals • •
Dimension A in mm (in) New
Limit of Use
Standard
254(10.0”)
120(4.7”)
Rock Bucket
280(11.0”)
140(5.5”)
-74-
AUTO-LUBRICATION DEVICE Manual Grease Gun Auto Grease Gun (Cartridge Type)
Switch of Fuel Feed Pump
Auto Grease Type
074
AUTO-LUBRICATION SWITCH (OP)
Auto-Lubrication Switch (OP)
075
-75-
