Component Locations Description Accumulator - Steering
Part Number
Machine Location
Schematic Location
248-6251
1
B-6
2
D-1, D-14, H-7, I-14
Cover 101-9346
3
F-5, F-6
(Blade Lift) 262-1903
4
F-13, G-1, J-2, J-4
(Blade Tip)
5
G-11
(Articulation) 184-6804
Cylinder Gp (2) Cylinder Gp (2) Cylinder Gp
9T-8944
(Center Shift) 262-1906
6
F-4
9T-3206
7
G-12
Cylinder Gp
Steering (LH) 165-2495
8
G-8
Cylinder Gp
Steering (RH) 165-2496
9
G-7
Cylinder Gp
(Wheel Lean) 121-9243
10 11
D-8
Cylinder Gp
(Side Shift)
Cylinder Gp
Manifold - Left
102-8385 102-6238
12
D-6
Motor Gp - Gear
(Hydraulic Fan) 224-7040
13
B-5
9T-5977
14
G-10
(Steering) Note A 111-0490 Note B 222-3770
15
E-7
(Hydraulic Fan) 184-7448
16
B-10
(Circle Drive)
Pump Gp - Metering
Pump Gp - Piston
Pump Gp - Piston (Implement & Steering) 177-7517
17
B-9
(Fan Drive) 167-1709
18
B-5
230-5771
19
B-6
Swivel Gp
260-6502
20
F-11
Tank Gp & Filter
207-2410
21
C-13
Sensor Gp - Pressure Switch As - Pressure
38 47
28 30 36 49
Valve Gp - Control
(Blade Tip) 107-0554
25
E-9
Valve Gp - Control
(Center Shift) 107-0561
26
E-5
Valve Gp - Control
(Circle Drive) 107-0555
27
E-11
Valve Gp - Control
(Left Blade Lift) 107-0557
28
E-13, H-4
Valve Gp - Control
(Right Blade Lift) 107-0564
29
E-2, H-2
Valve Gp - Control
(Side Shift) 107-0556
30
E-12
(Wheel Lean) 6E-3030 Valve Gp - Control Valve Gp - Mounting & (Fan Speed Solenoid) 193-5765 Valve Gp - Pump Control (Pressure & Flow Compensator) (for Hydraulic Fan Pump) 168-2210 (for Implement & Steering Pump) 104-3122
31
E-3
32
C-11
33 34 35
C-10 C-9
Valve Gp - Unit Test 4 (LH) (Implement Control Valve Manifold) 104-8653
36
E-14
Valve Gp - Unit Test 4 (RH) (Implement Control Valve Manifold) 104-8674
37
E-1
2 40 41 42
16 1
BB
VENTED
FLOW
SOLENOID or MANUAL
GENERAL MANUAL
MANUAL SHUTOFF
21
160-9413
38
G-2, G-14
Cylinder Gp - Ripper
113-5264
39
J-10
Pump Gp - Electric Drive (Secondary Steering)
123-8915
40
A-6
Valve Gp- Check (Secondary Steering)
9T-1013
41
A-7 C-7 I-9
Valve Gp - Control
(Ripper)
107-0559
44
I-10
Valve Gp - Control (Snow Wing LIft - Heel)
137-8106
45
I-13
Valve Gp - Control (Snow Wing Tilt - Toe)
137-8104
46
I-12
253-1320 9T-8071
47
F-2, F-13 A-7
48
PUSH BUTTON
PEDAL
SPRING
PILOT CONTROL SYMBOLS RELEASED PRESSURE
Schematic Location
42
DETENT
THERMAL
32
34
Machine Location
43
SERVO
MANUAL CONTROL SYMBOLS
Part Number
9T-6146
RETURN BELOW FLUID LEVEL
SOLENOID and PILOT or MANUAL
SOLENOID and PILOT
18
EXTERNAL RETURN
REMOTE SUPPLY PRESSURE
INTERNAL RETURN
SIMPLIFIED
CROSSING AND JOINING LINES
ACCUMULATORS
107-0559
BIDIRECTIONAL
RETURN ABOVE FLUID LEVEL
PRESSURIZED
SOLENOID
17
CC
3
(Plow/Dozer Lift)
UNIDIRECTIONAL
COMBINATION CONTROLS
ASE1-UP
19 23 48
Attachments
Valve Gp - Relief (Secondary Steering)
14H Motor Grader Hydraulic System
12 24 26 29 31 37 50
C-8
Valve Gp - Control
PILOT CONTROLLED
ROTATING SHAFTS
TEMPERATURE
PUSH-PULL LEVER
Valve Gp - Check (Secondary Steering)
SHUTTLE
SPRING LOADED
BASIC SYMBOL
FLUID STORAGE RESERVOIRS
E-6
Valve Gp (2) - Mounting & (Blade Cushion Solenoid Valve)
PRESSURE
33
AA
24
(Blade Cushion)
INFINITE POSITION
MEASUREMENT
5
FOUR-WAY
THREE-WAY
CHECK VALVES
P T SHIFTED POSITION
7
15
TWO-WAY
THREE POSITION
AB
P T NORMAL POSITION
11 25 27
2
(Articulation) 107-0560
Accumulator Gp (2)
VALVE PORTS
CONTROL VALVES AB
B-5
Description
TWO POSITION
ONE POSITION
6
C-7
(Wheel Lean) 131-0753
ATTACHMENT
LINE RESTRICTION VARIABLE and PRESSURE COMPENSATED
20
22
Valve Gp - Shuttle
PUMP: VARIABLE and PRESSURE COMPENSATED
2-SECTION PUMP
HYDRAULIC PNEUMATIC ENERGY TRIANGLES
VALVES
VALVE ENVELOPES
23
Valve Gp - Control
LINE RESTRICTION (FIXED)
RESTRICTION
PRESSURE COMPENSATION
LINE RESTRICTION (VARIABLE)
SPRING (ADJUSTABLE)
VARIABILITY
CONTROL VALVES
SPRING
FLUID CONDITIONER
4
9T-5957
Valve Gp - Combination
BASIC COMPONENT SYMBOLS MAIN AUX.
14
(Fan Drive) 175-0447
Valve Gp - Check
FLUID POWER SYMBOLS
RENR4184-04 September 2005
9
PUMP or MOTOR
F-3
Manifold - Right Motor Gp - Gerotor
10 8
INTERNAL SUPPLY PRESSURE
COMPLETE
HYDRAULIC AND PNEUMATIC CYLINDERS
22
13
SPRING LOADED
39 The Following Control Valves may be located on either (LH)
36
or (RH)
37
LINES CROSSING
HYDRAULIC PUMPS
LINES JOINING
SINGLE ACTING
DOUBLE ACTING
INTERNAL PASSAGEWAYS
HYDRAULIC MOTORS
machine FIXED DISPLACEMENT
side dependent on machine arrangement.
24 25 26 27 28 29 30 31 43 44 45 46
D FW
GAS CHARGED
Machine Component Locations
VARIABLE DISPLACEMENT NON-COMPENSATED
FIXED DISPLACEMENT
VARIABLE DISPLACEMENT NON-COMPENSATED
UNIDIRECTIONAL
UNIDIRECTIONAL
BIDIRECTIONAL
BIDIRECTIONAL
FLOW IN ONE DIRECTION
TWO POSITION
THREE POSITION
INFINITE POSITIONING
PARALLEL FLOW
CROSS FLOW
FLOW ALLOWED IN EITHER DIRECTION
Printed in U.S.A.
© 2005 Caterpillar All Rights Reserved
AccuGrade Attachments Description
Part Number
Machine Location
Schematic Location
Manifold Gp - Control (LH)
239-9893
49
I-4
Manifold Gp - Control (RH)
239-9894
50
I-1
Steering Pump Supply
Misc Ref
AA
6E-3164
16
Note A: Used on 14H(1-746). Note B: Used on 14H(747-UP). Note C: Used on 14H(747-818).
Line for Pump to the Fan Speed Solenoid
Tap Locations Pressure, Sampling, and Sensor
Implement Drain Lines
23 Transducer (Fluid)
Tank Return Line
M
G Transducer (Gas / Air)
Generator
Electric Motor
Schematic Location
Description
AA
Pump Output Pressure
(Fan)
BB
Implement & Steering Load Sensing Signal Pressure
C-9
CC
Pump Supply Pressure
B-8
(Implement / Steering)
AA
C-12
23
Implement Signal Lines
CC BB
Line to the Hydraulic Tank from the Makeup Valve
T
Pressure Symbol
Temperature Symbol
Hydraulic & Steering System
Line to the Makeup valve from the Pump
Flow Symbol
Level Symbol
Wire Number Identification Codes Electrical Schematic Example
Hydraulic Schematic Example Current Standard
Current Standard Harness identification code This example indicates wire 135 in harness "AG".
1
Electrical Wire
Temperature Switch
Electrical Symbols (Electrical)
BB
Vent Line to the Combination Valve
34
Pressure Switch (Adjustable)
Pressure Switch
Wire
Circuit Number Identification
Wire Color
325-AG135 PK-14
23
ALT.
Line to the Makeup Valve from the Fan Drive Motor
CC Alternate Location for some models.
BB
325-PK
13
42
Circuit Identification Number
Line to the Fan Drive Motor from the Makeup Valve
Wire Color
Wire Gauge
Previous Standard
22
Wire Color
Wire
325-PK-14
18
Combination Valve
34
Hydraulic Fan Drive
B
Combination Valve
Circuit Number Identification
A
Wire Gauge (EXAMPLE VALVE)
16 Page
Tap Number
32
33
Signal Line
Hydraulic Symbols (Electrical)
Implement Supply Lines
RENR4184-04
Inst - Test
Electrical Symbols Table