Mobile equipment production from Carterpillar especially wheel loader with various buck capacity.Descrição completa
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1998 WA 180-3 wheel loader workshop manual komatsu
sdlg wheel loader lg958l for sale , www.china-sdlg.com , sdlg lg958l with zf transmission.
Caterpillar Wheel loader 924GFull description
Descripción completa
1998 WA 180-3 wheel loader workshop manual komatsuFull description
fFull description
1998 WA 180-3 wheel loader workshop manual komatsuDescripción completa
Product manual (not an operating manual)
Caterpillar Wheel loader 924GFull description
C
K
BASIC COMPONENT SYMBOLS
28
31
D
FLUID POWER SYMBOLS
MAIN AUX.
PUMP or MOTOR
CONTROL VALVES
SPRING
FLUID CONDITIONER
E
J MM
B
F
49
G
TWO POSITION
ONE POSITION
VALVE PORTS
NN
BOTTOM VIEW
PRESSURE
-
The Following components are not referenced on the Hydraulic System Schematic:
Case drain filter (31) Hydraulic oil fluid sampling valve (SOS) Hydraulic systems kidney loop filter (28) Brake system accumulators (49)
950H, 962H and IT62H Wheel Loader Hydraulic System
The Following components are not referenced on the Hydraulic System Schematic:
- Pressure differential relief valve (A) - Head end solenoid valve (ride control) (B) - Signal relief valve (C) - Tilt anti-drift valve (D) - Rod end solenoid valve (ride control) (E) - Ride control balance solenoid valve (F) - Pilot pressure reducing valve (G) - Lift cylinder head end pressure tap (H) - Lift cylinder head end pressure sensor for Payload Control System and Autodig (J) - Hydraulic lockout solenoid valve (K)
INFINITE POSITION
962H: N4A1-UP M3G1-UP K6K1-UP J6J1-UP
950H: N1A1-UP M1G1-UP K5K1-UP J5J1-UP
- Power train oil fluid sampling valve (A) - Power train oil filter (B) - Ecology drain for the hydraulic tank (C)
IT62H: M5G1-UP
FLOW
12
A
B
VENTED
RETURN ABOVE FLUID LEVEL
PRESSURIZED
COMBINATION CONTROLS
SOLENOID or MANUAL
SOLENOID
B
G
EE
MANUAL SHUTOFF
GENERAL MANUAL
E
EXTERNAL RETURN
H
SIMPLIFIED
CROSSING AND JOINING LINES
D
J
H
C
Item Number
Description
Part Number
Schematic Location
HMU STEERING CIRCUIT 1
Hand Metering Unit
230-4176
A-4
2
Connector - Orifice
122-2340
B-3 , B-4
3
Cylinder Gp - Steer
163-0324
B-1
4
Valve Gp - Neutralizer
146-7571
B-3 , B-4
5
Valve Gp - Steer
142-4000
B-2
Valve Gp - Neutralizer
8J-1553
D-3
7
Valve Gp - Steer
124-8635
D-1
8
Cylinder Gp - Steer
163-0324
E-1
9
Valve Gp - Check
111-7775
D-3
10
Valve Gp - Pilot
147-1790
D-4
8J-6875
C-3
154-2883
E-2
11
Valve Gp - Shuttle
12
Screen Gp MAIN SCHEMATIC
13
Pump Gp - Steering
241-9299
A-6
14
Pump Gp - Implement
254-4108
A-7
Cylinder - Tilt
242-4220
F-8
Cylinder - Tilt (Mid Lift)
247-0497
F-8
Cylinder - Tilt (High Lift)
245-7491
F-8
Cylinder - Tilt (Logger)
245-7487
F-8
20
Cylinder - Lift (LH)
242-4272
F-7
21
Cylinder - Lift (RH)
242-4271
F-7
22
Valve - Choke Check
276-9072
D-9
23
Valve Gp - Manual Lowering
112-1817
E-9
24
Accumulator - Pilot Oil
245-2975
F-5
25
Pump Gp - Fan
254-5146
B-8
26
Motor Gp - Fan
246-6152
D-6
27
Valve Gp - Cooler Bypass
244-1426
B-9
28
Filter Gp - Return Oil
244-1031
B-9
15
30
Manifold Gp - Fan & Brake Charge
242-1307
C-8
31
Filter Gp - Case Drain
249-2334
A-8
32
Valve Gp - Breaker Relief
220-0814
A-8
33
Tank Gp - Hydraulic Oil
237-2742
A-8
34
Valve Gp - Secondary Steer Diverter
141-2597
B-6
35
Pump Gp - Secondary Steer Valve Gp - Control (2 Function Standard)
275-8544
A-6
261-4171
D-9
Valve Gp - Control (2 Function W/RC)
261-3682
D-9
Valve Gp - Control (3 Function)
261-4172
D-9
Valve Gp - Control (2 Function W/RC)
261-3683
D-9
Valve Gp - Control (Snow Removal) (3 Function W/RC)
The service center is located on the right side of the machine below the cab. The Following components are located in the service center:
- Pilot accumulator (24) - Pilot supply pressure tap (GG)
6
P T SHIFTED POSITION
P T NORMAL POSITION
This photo shows a front view of the implement control valve (36) in the loader frame. The following components can be seen in this view:
CHECK VALVES
AB
AB
24
GG
FOUR-WAY
THREE-WAY
CONTROL VALVES
H
ATTACHMENT
LINE RESTRICTION VARIABLE and PRESSURE COMPENSATED
TWO-WAY
THREE POSITION
PUMP: VARIABLE and PRESSURE COMPENSATED
2-SECTION PUMP
HYDRAULIC PNEUMATIC ENERGY TRIANGLES
VALVES
VALVE ENVELOPES
C
A
PRESSURE COMPENSATION
LINE RESTRICTION (VARIABLE)
SPRING (ADJUSTABLE)
VARIABILITY
LINE RESTRICTION (FIXED)
RESTRICTION
- Tilt anti-drift valve (A) - Signal relief valve (B) - Signal duplication valve (C) - Return to tank port (D) - Supply port from pump (E) - Signal line to pump (F) - Tank line (G) - Screen (H) - Tilt back pilot solenoid valve (J) - Tilt back pilot (K) - Tilt cylinder rod end line relief (L) - Ride control balance solenoid valve (M) - Rod end solenoid valve (ride control) (N)
M
G Transducer (Fluid)
Transducer (Gas / Air)
Pressure Switch (Adjustable)
Pressure Switch
SERVICE CENTER
Generator
Electric Motor
Electrical Wire
Temperature Switch
Electrical Symbols (Electrical)
T
DD
Pressure Symbol
CC RR
Temperature Symbol
FF
Wire Number Identification Codes
48
Electrical Schematic Example
Hydraulic Schematic Example Current Standard
Current Standard XX
QQ
Harness identification code This example indicates wire 135 in harness "AG".
YY
15
Wire Color
Wire Color
Wire Gauge
Previous Standard Wire Color
Wire
- Hand metering unit (1) - Foot service brake valve (48) - Steer pump load sense test port (FF) - Front sercive brake test port (QQ) - Rear service brake test port (RR)
IMPLEMENT CONTROL VALVE
Circuit Number Identification
325-PK Circuit Identification Number
The following components are located under the front of the cab.
- Implement pump pressure tap (CC) - Implement pump load Sense pressure tap (DD)
Wire
325-AG135 PK-14
1
This drawing shows a right side view of the wheel loader. The following components can be seen in this view:
Flow Symbol
Level Symbol
325-PK-14 B Circuit Number Identification
HMU & SERVICE BRAKES
A
Wire Gauge (EXAMPLE VALVE)
TILT CYLINDER LINES GROUP
33 32
32
Tap Locations Pressure, Sampling, and Sensor Tap Number
Description
1
33 Schematic Location
26 43
45 46
20
47 48
21
15
25 15
1
AA
AA
Fan Pump Discharge Pressure
B-8
CC
Implement Pump Charge Pressure
E-9
DD
Implement Pump Load Sense Pressure
B-7
EE
Steer Pump Pressure
FF
Steer Pump Load Sense Pressure
GG
Pilot Supply Pressure
E-5
HH
Fan Pump Load Sense Pressure
B-8
KK
Command Control Right Steer Pilot Pressure
D-2
LL
Command Control Left Steer Pilot Pressure
D-2
MM
Command Control Steering Neutral Pilot Press
D-3
3
3
NN
Command Control Steering Supply Pressure
D-3
8
8
B-7 A-4 or C-4
27 26
31
43
49
45 46
27
47 48
HH
42
PP
Service Brake Pressure
F-3
QQ
Front Service Brake Pressure
F-4
RR
Rear Service Brake Pressure
F-4
34
25 30 13
50 51
34
25
13
3
50
XX
Tilt Cylinder Rod End Pressure
F-8
35
53
52
35
30
14
8
51 12 23
4
YY
Tilt Cylinder Head End Pressure
F-8
Hydraulic Oil Sampling Port
B-9
42
53
49 52 28 31
6
SOS
20
21
28
23 14
REAR VIEW
FAN AND BRAKE HYDRAULIC SYSTEM
5 7
2
9
10
22 24
2
5 7 10
11
36 41
4
11 12 22
4
6
24 36 41
6
Machine Component Locations
9
FRONT VIEW
30
The fan and brake pump (25) is located on the front gear train of the engine, on the right side of the machine. The fan and brake pump provides oil flow for the electronic demand fan systemand the brake hydraulic system. The outlet pressure tap (AA) is located on the fan and brake pump. Also located on the engine on the right side of the machine is the fan control and brake accumulator charging valve (30). The fan pump load sense pressure tap (HH) is located above the brake charging valve.
2
FAN & BRAKE PUMP
30 Page
10
B
SOS
RENR8879-01
A
RENR8879-01 June 2006
8
9
7
6
4
5
41
TILT
15
49 51
20
XX
21
LIFT
R
24
H B4
TO TRANSMISSION CONTROL
HITCH
A2
45
50
52
A1
F
30
PS
NO
QQ
A4
53
TO BRAKE LIGHTS
NC C
25
PP
RR
48
RACK BACK
RAISE
HEAD END
F
GG
To Fan Motor T
P
LS
RACK
HEAD END
BACK
RAISE
HOLD
HOLD
HOLD
LOWER
ROD END
DUMP
HYDRAULIC TANK
To Case Drain Manifold
REAR AXLE
E
APPLY
46
C
23
RELEASE
AUX
YY
CC
1
FRONT AXLE
47 F
2
3
BRAKE SYSTEM
E
12
a1
FLOAT
8
8 10
7
CROSSOVER RELIEF
KK
LL
CYL PORT "B"
CYL PORT "A" SHUTTLE VLV
LOWER/ DUMP
LS D
LOAD SENSING PUMP PORT
ROD END
FLOAT
DIRECTIONAL SPOOL
DR
PILOT PORT"A"
1 )(
P
22
26
FOR REVERSING FAN SEE ITEM 42 & 43.
6
LINE PATTERNS
36
T
Pressure Line Pilot / Load Sensing Pressure
NN
Component Group
A1
TO REAR BRAKES
A2
42
43
REVERSING FAN
BACK UP RELIEF
PRESSURE REDUCING VALVE
9
Air Line
CALLOUTS
P
YY
Taps (Pressure, Sampling,Sensor) by letter
52
Components by number
a1
REGULATED PRESS. PORT TO PILOT VALVE
11
e1 c1
T C IMPLEMENT PUMP OUTPUT IMPLEMENT PILOT SUPPLY OIL
30
FF
d1
HYDRAULIC CIRCUIT COLOR DESCRIPTIONS
30 Page, Color 2
MM
C
COMMAND CONTROL STEERING AND 3PC IMPLEMENT ATTACHMENT
BRAKE CHARGE VALVE AND FAN CONTROL CIRCUIT BRAKE CONTROL CIRCUIT
F
27
P
LS
4 3
HH DD
34
e1
28 AA
25
b1
PILOT PORT "A"
B
2
EE SOS
4
T
Connection b1 only for Command Control Steering B
CROSSOVER RELIEF
e1 d1
CYL PORT "A"
DIRECTIONAL SPOOL PUMP PORT
14 1
29
MAKE-UP CHECKS
35 32
TANK PORT
Attachment
TO PARKING BRAKE
PS
RENR8879-01
PILOT PORT"B"
b1
Drain / Return Lines
TO FRONT BRAKES
D
MAKE UP CHECK
31
BACK-UP RELIEF
c1
c1
HMU SUPPLY PORT
FF
A
A
HMU STEER AND 3PC IMPLEMENT THIS SCHEMATIC IS FOR THE 950H AND 962H WHEEL LOADER
13
33
PART #: 241-0475 CHG 07 & BRAKE SYSTEM PART # 244-1398 CHG 00 Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral.
d1 9
8
7
6
5
Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations
