RENR4322-03 May 2005
950G II and 962G II Hydraulic Component Locations Schematic Location
Component Main Control Valve %
A1
2
Auxiliary Cylinders @
A2
3
Tilt Cylinder
A3
4
Lift Cylinders
A4
5
Front Service Brakes
A5
6
Left Pedal Assembly
7
Right Pedal Assembly
8
Brake Control Valve (SERVICE)
9
Front Service Brakes Accumulator
10
Rear Service Brakes Accumulator
11
2
BASIC COMPONENT SYMBOLS
3 MAIN AUX.
4
PUMP or MOTOR
5
CONTROL VALVES
SPRING
FLUID CONDITIONER
LINE RESTRICTION (FIXED)
RESTRICTION
PUMP: VARIABLE and PRESSURE COMPENSATED
2-SECTION PUMP
6 PRESSURE COMPENSATION
LINE RESTRICTION (VARIABLE)
SPRING (ADJUSTABLE)
VARIABILITY
7
HYDRAULIC PNEUMATIC ENERGY TRIANGLES
ATTACHMENT
LINE RESTRICTION VARIABLE and PRESSURE COMPENSATED
VALVES VALVE ENVELOPES
VALVE PORTS
A6
Parking Brake Parking Brake Actuator
13
Accumulator (Ride Control) #
A5
14
Shuttle Valve (Ride Control) #
A4
15
Line Relief Valve (Aux. Cylinder Head End) @
A1
16
Line Relief Valve (Aux. Cylinder Rod End) @
A2
17
Line Relief Valve (Tilt Cylinder Rod End)
18
Line Relief Valve (Tilt Cylinder Head End)
19
Piloted Operated Check Valve (Float)
B4
20
Check Valve (Ride Control) #
B4
21
Relief Valve (Ride Control Diverter Valve) #
B4
22
Solenoid Valve (Ride Control) #
B5
23
Rear Service Brakes
B5
24
Proirity Stage Valve (Accumulator Charge)
B5
25
Check Valve (Accumulator Charge)
B5
26
Shuttle Valve (Accumulator Charge)
B6
27
Accumulator Charge Valve (Braking)
B6
28
Brake Valve (Parking)
B7
29
Pressure Switch (Parking Brake)
30
Spool (Ride Control Diverter Valve)
B7 B4
12 13 15
14
Reversing Fan Attachment
950G II and 962G II Hydraulic Components
Main Relief Valve
C1
Strainers (Pilot Manifold)
C1
34
Relief Valve (Accumulator Charge)
C5
1
Relief Valve
10
Relief Valve
Check Valve
11
Valve
Item No.
Item No.
Component
35
Pressure Switch (Service Brake Oil)
C6
36
Primary Reducing Valve (Pilot Manifold)
C2
3
Solenoid Valve
12
Cooler
C3
4
Check Valve
13
Piston Motor
C3, C4
5
Solenoid Valve
14
Reversing Valve
C4
6
Valve
15
Filter
16
Screen
17
Piston Pump
40
Float Valve (Pilot Manifold)
C2
7
Diverter Valve
41
Shuttle Valve (Pilot Manifold)
C4
8
Diverter Valve
42
Cylinder (Quick Coupler)
D6
9
Relief Valve
43
Diverter Valve (Quick Coupler)
D6
44
Secondary Reducing Valve (Pilot Manifold)
D1
45
Selector Spool (Steering Valve)
D6
46
Directional Spool (Steering Valve)
D6
47
Check Valve (Steering Valve)
D6
48
Cylinders (Steering)
D6
49
Gear Motor (Hydraulic Fan)
D2
50
Pressure Switch (Steering Diverter Valve)
D3
51
D4
52
Steering Diverter Valve Steering Neutralizer Valve (Left)
53
Steering Neutralizer Valve (Right)
D5
54
Check Valve (Hydraulic Oil Cooler Bypass)
E2
55
Hydraulic Oil Cooler
E2
56
Connector (Orifice 1.6MM)
E4
57
Solenoid Valve (Hydraulic Fan)
E3
58
Piston Pump (Steering)
E1
59
Piston Pump (Hydraulic Fan)
E2
60
Pressure Switch (Secondary Steering) *
E4
61
Oil Filter (Hydraulic)
F2
62
Pressure and Flow Compensator (Hyd Fan) Vane Pump (Implement)
F3
63 64
Vane Pump (Pilot/Braking)
F1
65
Breaker Relief Valve
F1
66
Strainer (Hydraulic Tank)
F1
67
Secondary Steering Pump and Electric Motor
F3
68
Metering Pump (Steering)
F4
69
Check Valve (Steering)
F4
70
Backup Relief Valve (Steering)
F5
71
Make-up Check Valves (Steering)
F5
72
Control Valve (Steering)
F6
73 74
Crossover Relief Valve (Steering) Hydraulic Tank
F3
75
Relief Valve (Secondary Steering Pump) *
F3
Note: Installed on the following machines 950G II - AXX and 962G II - AXY
PILOT CONTROLLED
UNIDIRECTIONAL
BIDIRECTIONAL
FLUID STORAGE RESERVOIRS
VENTED
RETURN ABOVE FLUID LEVEL
PRESSURIZED
RETURN BELOW FLUID LEVEL
COMBINATION CONTROLS
SOLENOID or MANUAL
SERVO
SOLENOID and PILOT or MANUAL
SOLENOID and PILOT
DETENT
THERMAL
MANUAL CONTROL SYMBOLS
PUSH-PULL LEVER
MANUAL SHUTOFF
GENERAL MANUAL
PUSH BUTTON
PEDAL
SPRING
PILOT CONTROL SYMBOLS RELEASED PRESSURE
Volume 2: Electrohydraulic and Command Control Steering 950G II: 962G II: AYB1-UP AYE1-UP AYD1-UP AYG1-UP AXR1-UP AXS1-UP
Component
2
Pilot Control Valve %
Volume 1: Pilot Hydraulics and HMU Steering 950G II: 962G II: AYL1-UP AXY1-UP AYS1-UP BAB1-UP AXX1-UP BAC1-UP BAA1-UP BAD1-UP
17
33
39
FLOW
TEMPERATURE
SOLENOID
32
Connector (Orifice 1.7MM)
950G Series II and 962G Series II Wheel Loader Hydraulic System
16
B6
38
PRESSURE
SHUTTLE
SPRING LOADED
BASIC SYMBOL
ROTATING SHAFTS
A2
Priority Valve (Brake Accumulator Charge)
Ball Valve (Implement Lockout)
INFINITE POSITION
MEASUREMENT
10
31
37
CHECK VALVES
P T SHIFTED POSITION
P T NORMAL POSITION
11
FOUR-WAY
THREE-WAY
AB
AB
9
TWO-WAY
THREE POSITION
CONTROL VALVES
A7
12
TWO POSITION
ONE POSITION
8
EXTERNAL RETURN
REMOTE SUPPLY PRESSURE
INTERNAL RETURN
CROSSING AND JOINING LINES
ACCUMULATORS
SPRING LOADED
SIMPLIFIED
GAS CHARGED
LINES CROSSING
HYDRAULIC PUMPS FIXED DISPLACEMENT
HYDRAULIC AND PNEUMATIC CYLINDERS
SINGLE ACTING
LINES JOINING
FIXED DISPLACEMENT
VARIABLE DISPLACEMENT NON-COMPENSATED
UNIDIRECTIONAL
UNIDIRECTIONAL
BIDIRECTIONAL
BIDIRECTIONAL
DOUBLE ACTING
INTERNAL PASSAGEWAYS
HYDRAULIC MOTORS
VARIABLE DISPLACEMENT NON-COMPENSATED
INTERNAL SUPPLY PRESSURE
COMPLETE
PARALLEL FLOW
FLOW IN ONE DIRECTION
TWO POSITION
THREE POSITION
INFINITE POSITIONING
CROSS FLOW
Volume 1
Reversing Fan Attachment
Printed in U.S.A.
© 2005 Caterpillar All Rights Reserved
228-8530
D4
Electrical Symbols Table Hydraulic Symbols (Electrical)
24, 25, 26, 27, 28, 29, 31, 34, 35, EE
1, 14, 15, 16, 17, 18, 19, 20, 21, 22, 30, 32 33, 36, 37, 38, 39, 40, 41, 44, FF, GG
G
67, 74 Transducer (Fluid)
58, 63, 64
Transducer (Gas / Air)
M
Generator
Electric Motor
F1
Pressure Switch (Adjustable)
Pressure Switch
Electrical Wire
Temperature Switch
49, 54, 55 Electrical Symbols (Electrical)
T
F3
Pressure Symbol
Temperature Symbol
Flow Symbol
Level Symbol
* Secondary Steering is an optional attachment. # Ride Control is an optional attachment. @ Auxiliary Cylinders are an optional attachment.
Wire Number Identification Codes
% The one stem valve (third function) is an optional attachment field conversion. The three stem valve is an optional attachment. The two stem valve is standard.
Electrical Schematic Example
Hydraulic Schematic Example Current Standard
Current Standard
45, 46, 47, 70, 71, 72, 73
Pressure Tap Locations Pressure Tap
9, 10
Harness identification code This example indicates wire 135 in harness "AG".
11, 12
13
AA
Tilt Cylinder Rod End Pressure
BB
Tilt Cylinder Head End Pressure
CC
Rear Service Brake Pressure
Circuit Number Identification
325-PK Circuit Identification Number
57, 59, 62
A5
Front Service Brake Pressure
EE
Service Brake Accumulator Pressure
C6
FF
Implement Pilot Pump Pressure
C4
GG
Implement Pump Pressure
D1
HH
Fluid Sampling Valve
E3
JJ
Steering Pump Pressure
E5
KK
Hydraulic Fan Pump Pressure
E2
LL
Steering Signal Pressure
F4
Wire Color
325-AG135 PK-14
A3
DD
Wire
4
Schematic Location
Description
6, 7, 8
68, 69, LL
AA, BB
3
Wire Color
Wire Gauge
Previous Standard Wire Color
Wire
325-PK-14 B Circuit Number Identification
A
Wire Gauge (EXAMPLE VALVE)
Media References Media Number
Media Number
Systems (Continued)
Parts Manual SEBP3281
SEBP3352 SEBP3280
962G II AYE 962G II AXS
950G II AXR
SEBP3494
962G II AXY
950G II AXX
SEBP3495
962G II BAB
SEBP3496 SEBP3285
950G II BAA
SEBP3492
962G II BAD
SEBP3339
950G II AYB 950G II AYL
SEBP3497
Engine SENR9617
Troubleshooting
Power Train
Test and Adjusting (Steering) Specifications (Braking)
RENR4314 RENR4315
System Operation (Braking)
RENR4316
Testing and Adjusting (Braking) Specifications (Electrohydraulic/Pilot)
RENR4318
Systems Operation (Electrohydraulic/Pilot)
RENR4319
RENR4317
Testing and Adjusting (Hydraulic)
RENR4320
Testing and Adjusting (Electrohydraulic)
RENR4321 RENR6042
RENR4308 RENR4309
Specifications (Machine Systems)
Systems Operation Testing and Adjusting
RENR4310
Schematic (Electrohydraulic System)
RENR4362
Schematic (Pilot System)
RENR4324
Specifications
Systems Specifications (Steering)
RENR4312
Systems Operation (Steering)
RENR4313
Electrical System
23, CC
61, 65, 66, 74, HH
48
50, 51, 52, 53, 56, 60, JJ
5, DD
Operation & Maintenance Manual English
FLOW ALLOWED IN EITHER DIRECTION
SEBU7459
MACHINE COMPONENT LOCATIONS
42, 43
24 Page,
1
1
RENR4322-03 VOL 1
Item No.
FLUID POWER SYMBOLS
2
1 1
4
3
2
3
AA
6
5
4
6
5
7 7
8
9
10
11
12
21 13
A
14
CC
BB
15
16
20
18
17
A
19 DD
23
22
B
24
25
26
27
29
28
B
30
31 FF 32
33
EE 35
34 36
38
38
37
38
39
C
40
41
42
44 43
45
D
24 Page, B/W
RENR4322-03 VOL 1
C
46
D 47
GG 49
50
52
51
48
53
54 55
JJ
KK
56 61
E 58
E 57
HH
59
60
71 66 63
72
73
62
LINEAR PATTERNS
LL
66
64
67
68
Implement Pressure
70
69
Pilot Pressure
M
F
Return Lines
65
Components 74
75
THIS SCHEMATIC IS FOR THE 950G AND 962G SERIES II WHEEL LOADER PART #: 187-6675 CHG 01 Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral.
g00984677
1
2
3
4
5
6
7
F
Chart A 950G II and 962G II Hydraulic Component Locations Schematic Location
1
Main Control Valve %
A1
2
Auxiliary Cylinders @
A2
3
Tilt Cylinder
A3
4
Lift Cylinders
A4
5
Front Service Brakes
A5
6
Left Pedal Assembly
A6
7
Right Pedal Assembly
A6
8
Brake Control Valve (Service)
A6
9
Front Service Brakes Accumulator
10
Rear Service Brakes Accumulator
A7 A7
11
Parking Brake
A7
12
Parking Brake Actuator
13
Accumulator (Ride Control) #
A7 A5
14
Shuttle Valve (Ride Control) #
A5
15
Ride Control Accumulator #
A5
16
Line Relief Valve (Aux. Cylinder Head End) @
A1
17
Line Relief Valve (Aux. Cylinder Rod End) @
F1
18
Line Relief Valve (Tilt Cylinder Rod End)
A2
19
Line Relief Valve (Tilt Cylinder Head End)
A3
20
Pilot Operated Check Valve (Float)
B4
21
Relief Valve (Ride Control) #
B5
22
Rear Service Brakes
B5
23
Pressure Switch (Parking Brake)
B7
24
Check Valve (Accumulator Charge)
B6
25
Shuttle Valve (Accumulator Charge)
B6
26
Solenoid Valve (Ride Control) @
B5
27
Auxiliary Spool (Main Control Valve) @
B1
28
Tilt Spool (Main Control Valve)
B2
29
Lift Spool (Main Control Valve)
B3
30
Spool (Ride Control) #
B4
31
Resolver Valve (Dead Engine Lower)
B4
32
Priority Valve (Accumulator Charge Pilot)
C6
33
Primary Reducing Valve (Pilot Manifold)
C2
34
Proportional Valve (Tilt Dump)
C2
35
Proportional Valve (Lift Lower)
C3
36
Proportional Valve (Auxiliary Lower)
C4
37 38
Main Relief Valve
C1
Relief Valve (Accumulator Charge)
C5
39
Piority Stage Valve (Accumulator Charge)
C6
40
Accumulator Charging Valve (Braking)
C6
41
Strainers (Pilot Manifold)
C1
42
Solenoid Valve (Pilot Pressure Supply)
C2
43
Ball Valve (Dead Battery, Lift Arm Lower)
44
1 4
Item No.
C1
3
Solenoid Valve
12
Cooler
Float Valve (Pilot Manifold)
C4
4
Check Valve
13
Piston Motor
5
Solenoid Valve
14
Reversing Valve
6
Valve
15
Filter
16
Screen
17
Piston Pump
45
Pressure Switch (Service Brakes)
C6
46
Parking Brake Valve
C7
47
Proportional Valve (Tilt Tiltback)
C3
48
Proportional Valve (Lift Raise)
C3
7
Diverter Valve
49
Proportional Valve (Auxiliary Raise)
C4
8
Diverter Valve
9
Relief Valve
50
Secondary Reducing Valve (Pilot Manifold)
D2
Shuttle Valve (Pilot Manifold)
D2
52
Cylinder (Quick Coupler)
D6
53
Diverter Valve (Quick Coupler)
D6
54
Steering Cylinders
D7
55
Pilot Valve (Steering)
D4
56
Wheel (Steering Assembly)
D4
57
Steering Oil Screen Group
D5
E5
61
Crossover Relief Valve (Steering)
E6
62
Resolver Valve (Steering)
E7
63
Proportional Valve (Hydraulic Fan)
E3
64
Check Valve (Hydraulic Oil Cooler Bypass) Hydraulic Oil Cooler
E2 E2
66
Gear Motor (Hydraulic Fan)
E2
67
Check Valves (Steering Valve)
E7
68
Piston Pump (Hydraulic Fan)
69
Pressure and Flow Compensator (Hyd Fan)
E3 E3
70
Piston Pump (Steering)
E1
71
Oil Filter (Hydraulic)
E2
72
Shuttle Valve (Steering)
F6
73
Vane Pump (Implement)
F1
74
Vane Pump (Pilot/Braking)
F1
75
Resolver Valve (Steering)
F4
76
Diverter Valve (Steering)
F5
77
Pressure Switch (Secondary Steering) *
F4
78
Right Neutralizer Valve (Steering)
E5
79
Pressure Reducing Valve (Steering)
F6
80
Backup Relief Valve (Steering)
F7
Secondary Steering Pump and Electric Motor *
F1
82
Breaker Relief Valve
F1
83
Pressure Switch (Steering Pump)
F5
84
Hydraulic Tank
F1
85
Strainers (Hydraulic Tank)
F2
86
Relief Valve (Secondary Steering Pump) *
F4
Volume 2: Electrohydraulic and Command Control Steering 950G II: 962G II: AYB1-UP AYE1-UP AYD1-UP AYG1-UP AXR1-UP AXS1-UP
Tilt Cylinder Head End Pressure
CC
Rear Service Brake Pressure
DD EE
Front Service Brake Pressure Auxiliary Pilot Pump Pressure (Open)
Reversing Fan Attachment
228-8530
59
B2
Tilt Pilot Pump Pressure (Dump)
B2
HH
Tilt Pilot Pump Pressure (Tiltback)
B3
JJ
Lift Pilot Pump Pressure (Lower)
B3
KK LL
Lift Pilot Pump Pressure (Raise) Pilot Pressure (Ride Control)
B4
MM
Service Brake Accumulator Pressure
NN
Pump Pressure (Implement)
B6 D1
PP RR
Pump Pressure (Steering)
E1
SS
Fluid Sampling Valve Pilot Pressure (Steering)
E2 E6
Hydraulic Fan Pump Pressure
E3
UU
Steering Control Valve Neutral Pilot Pressure
E4
VV
Pilot Pressure (Steering)
F4
WW
Pilot Pressure (Steering )
F6
XX
Pump Signal Pressure (Steering)
F5
TT
Parts Manual
SEBP3281
SEBP3352 SEBP3280
962G II AYE 962G II AXS
950G II AXR
SEBP3494
962G II AXY
950G II AXX
SEBP3495
962G II BAB
SEBP3496 SEBP3285
950G II BAA
SEBP3492
962G II BAD
SEBP3339
Engine Troubleshooting
SEBP3497
SENR9617
SPRING LOADED
GAS CHARGED
LINES CROSSING
HYDRAULIC PUMPS VARIABLE DISPLACEMENT NON-COMPENSATED
FIXED DISPLACEMENT
HYDRAULIC AND PNEUMATIC CYLINDERS SINGLE ACTING
LINES JOINING
UNIDIRECTIONAL
BIDIRECTIONAL
BIDIRECTIONAL
PARALLEL FLOW
FLOW IN ONE DIRECTION
TWO POSITION
THREE POSITION
INFINITE POSITIONING
CROSS FLOW
FLOW ALLOWED IN EITHER DIRECTION
Printed in U.S.A.
Hydraulic Symbols (Electrical)
M
G Transducer (Gas / Air)
Pressure Switch (Adjustable)
Generator
Electric Motor
Electrical Wire
Temperature Switch
Temperature Symbol
Flow Symbol
Level Symbol
Hydraulic Schematic Example Current Standard
Current Standard
9, 10
13
77
Harness identification code This example indicates wire 135 in harness "AG".
4
Wire
Circuit Number Identification
Wire Color
325-AG135 PK-14
63, 68, 69, TT
6, 7, 8
56
55, UU, VV
AA, BB
325-PK
Circuit Identification Number
3
Wire Color
Wire Gauge
Previous Standard Wire Color
Wire
325-PK-14 B Circuit Number Identification
Systems (Continued)
A
Wire Gauge (EXAMPLE VALVE)
Media Number
Test and Adjusting (Steering) Specifications (Braking)
RENR4314 RENR4315
System Operation (Braking)
RENR4316
Testing and Adjusting (Braking) Specifications (Electrohydraulic/Pilot)
RENR4317 RENR4318
Systems Operation (Electrohydraulic/Pilot)
RENR4319
Testing and Adjusting (Hydraulic)
RENR4320
RENR4310
Schematic (Electrohydraulic System)
RENR4362
Schematic (Pilot System)
RENR4324
Electrical System
23, CC
71, 82, 84, 85
14, 15
11, 12
52
5, DD
Operation & Maintenance Manual English
DOUBLE ACTING
INTERNAL PASSAGEWAYS
VARIABLE DISPLACEMENT NON-COMPENSATED
UNIDIRECTIONAL
INTERNAL SUPPLY PRESSURE
COMPLETE
HYDRAULIC MOTORS
Transducer (Fluid)
57, 58, 60, 61, 62, 67, 72, 75 76, 78, 79, 80, 83, SS, WW, XX
Testing and Adjusting
RENR4313
CROSSING AND JOINING LINES
ACCUMULATORS
SPRING
REMOTE SUPPLY PRESSURE
SIMPLIFIED
Electrical Schematic Example
RENR6042
Systems Operation (Steering)
PILOT CONTROL SYMBOLS
PEDAL
Wire Number Identification Codes
Systems Operation
RENR4312
PUSH BUTTON
INTERNAL RETURN
Pressure Symbol
Testing and Adjusting (Electrohydraulic)
Systems
GENERAL MANUAL
T
Specifications (Machine Systems)
Specifications (Steering)
DETENT
THERMAL
Electrical Symbols (Electrical)
RENR4308 RENR4309
Power Train
MANUAL SHUTOFF
Pressure Switch
RENR4321
Specifications
SERVO
SOLENOID and PILOT or MANUAL
SOLENOID and PILOT
64, 65, 66, RR
Media References 950G II AYB 950G II AYL
SOLENOID or MANUAL
EXTERNAL RETURN
B5
Media Number
RETURN BELOW FLUID LEVEL
COMBINATION CONTROLS
1, 14, 15, 16, 17, 18, 19, 20, 21, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 38, 39, 41, 42, 43, 44, 47, 48, 49, 50 51, 54, EE, FF, GG, HH, JJ, KK, LL, NN, PP
70, 73, 74
B1
Auxiliary Pilot Pump Pressure (Close)
RETURN ABOVE FLUID LEVEL
PRESSURIZED
81, 86
A5
FF
VENTED
© 2005 Caterpillar All Rights Reserved
23, 24, 25, 32, 37, 39, 40, 45, 46, MM
A3
GG
BIDIRECTIONAL
Volume 2
Schematic Location
Tilt Cylinder Rod End Pressure
UNIDIRECTIONAL
FLUID STORAGE RESERVOIRS
FIXED DISPLACEMENT
950G II and 962G II Hydraulic Pressure Tap Locations AA
FLOW
RELEASED PRESSURE
% The one stem valve (third function) is an The three stem valve is an optional attachment.The two stem valve is standard.optional attachment field conversion.
BB
ROTATING SHAFTS
TEMPERATURE
PUSH-PULL LEVER
@ Auxiliary Cylinders are an optional attachment.
Description
PILOT CONTROLLED
MANUAL CONTROL SYMBOLS
* Secondary Steering is an optional attachment. # Ride Control is an optional attachment.
Pressure Tap
SHUTTLE
SPRING LOADED
BASIC SYMBOL
Electrical Symbols Table
65
81
Note: Installed on the following machines 950G II - AXR and 962G II - AXS
Component
Valve
E5
Reversing Fan Attachment
950G II and 962G II Hydraulic Components
Relief Valve
Control Valve (Steering)
Volume 1: Pilot Hydraulics and HMU Steering 950G II: 962G II: AYL1-UP AXY1-UP AYS1-UP BAB1-UP AXX1-UP BAC1-UP BAA1-UP BAD1-UP
17
11
60
950G Series II and 962G Series II Wheel Loader Hydraulic System
14
10
E5
PRESSURE
16
Component
INFINITE POSITION
MEASUREMENT
12
Item No.
CHECK VALVES
P T SHIFTED POSITION
10 11
FOUR-WAY
THREE-WAY
AB
P T NORMAL POSITION
15
TWO-WAY
THREE POSITION
ATTACHMENT
LINE RESTRICTION
VARIABLE and PRESSURE COMPENSATED
VALVE PORTS
CONTROL VALVES AB
Relief Valve
Left Neutralizer Valve (Steering)
TWO POSITION
ONE POSITION
8
13
PUMP: VARIABLE and PRESSURE COMPENSATED
2-SECTION PUMP
HYDRAULIC PNEUMATIC ENERGY TRIANGLES
VALVES
VALVE ENVELOPES
9
LINE RESTRICTION (FIXED)
RESTRICTION
PRESSURE COMPENSATION
LINE RESTRICTION (VARIABLE)
SPRING (ADJUSTABLE)
VARIABILITY
SOLENOID
51
CONTROL VALVES
SPRING
FLUID CONDITIONER
6
7
Check Valve
Check Valve (Steering Quad)
MAIN AUX.
5
2
58
3 PUMP or MOTOR
1
59
2
BASIC COMPONENT SYMBOLS
SEBU7459
MACHINE COMPONENT LOCATIONS
52, 53
24 Page,
Component
FLUID POWER SYMBOLS
RENR4322-03 May 2005
RENR4322-03 VOL 2
Item No.
2
1
4
3
3
2
7 6
5
4
AA
7
9
11
10
12
8
BB
1
6
5
13 14
CC
15
A
A
16
17
18
19
20
DD
23
22 25
24 26 B
B
27
28
29
30 31
EE
FF
GG
HH
JJ
KK
LL 32
33
34
38
40
39
C
45
44
43
46
49
48
47
52 51
50
53
D
24 Page, B/W
RENR4322-03 VOL 2
MM
37
42
41
C
36
35
54
D
NN 55
57
56
58
59
60
61
63 PP
64
65
66
E
SS
TT 68
E
67
69
70
UU RR
71
VV WW
73
62
74
75
76
77
72 79
78
80
81 82
LINEAR PATTERNS
F
M
84
85 86
83 XX
F
Implement Pressure Pilot Pressure Return Lines Components
THIS SCHEMATIC IS FOR THE 950G AND 962G SERIES II WHEEL LOADER PART #: 187-6675 CHG 01 Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral.
g00986326
1
2
3
4
5
6
7
G
