SENR6713-01
May 1995
938F Wheel Loader
Hydraulic System
938F
1KM1-UP
2RM1-UP
8SM1-UP
7SN1-UP
IT38F
6FN1-UP
5DR1-UP
IT38F Integrated Toolcarrier
©
1995 Caterpillar
All Rights Reserved
Printed in U.S.A.
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2
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4
D02725
7
8
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18 19
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27
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13
2
1
6
3
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27
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8
7
5
4
18
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D02766
D18732
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1 2 3 4 4 3 5 6 6 5 7
9
10
1012
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17 17 18
20 21 22 23 24 25
26 27 28
29
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32 33
IT38F
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11
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D19363
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8
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Item No.
Component
1
Auxilary Cylinders
2
Tilt Cylinders
3
Lift Cylinnderrs
4
Ride Control Solenoid Valve
5
Ride Control Oil Accumulator
6
Front Axle
7
Main Relief Valve
8
Main Control Valve
9
Brake Control Valve
10
Pressure Control And Selector Valve
11
Brake Accumulator
12
Brake Accumulator Charging Valve
13
Rear Axle
14
Lockout Valve
15
Auxilary Pilot Conntrol Valve
16
Tilt Pilot Control Valve
17
Lift Pilot Control Valve
18
Supplemental Steering Pump
19
Supplemental Steering Diverter Valve Group
20
Pressure Switch
21
Steering Control Valve
22
Left Steering Cylinder
23
Right Steering Cylinder
24
Hydraulic Tank And Filter Group
25
Hydraulic Pump Group
26
Line To Brake System
27
Metering Pump (Steering)
938F HYDRAULIC SCHEMATIC
Item No.
Component
1
Lines To Fourth Function
2
Coupler Cylinder
3
Tilt Cylinder
4
Tilt Load Control Valve
5
Lift Cylinders
6
Lift Load Control Valve
7
Ride Control Oil Accumulator
8
Front Axle
9
Rotary Shut Off Valve
10
Ride Control Solenoid Valve
11
Brake Control Valve
12
Main Control Valve
13
Main Relief Valve
14
Brake Accumulator
15
Brake Accumulator Charging Valve
16
Pressure Control And Selector Valve
17
Fourth Function Solenoid Control Valve
18
Hydraulic Oil Cooler
19
Rear Axle
20
Lockout Valve
21
Auxilary Pilot Control Valve
22
Tilt Pilot Control Valve
23
Lift Pilot Control Valve
24
Steering Controol Valve
25
Left Steering Cyliinder
26
Supplemental Steering Pump
27
Supplemental Steering Diverter Valve Group
28
Pressure Switch
29
Right Steering Cyliinder
30
Hydraulic Tank And Filter Group
31
Hydraulic Pump Group
32
Line To Brake System
33
Metering Pump (Steering)
IT38F HYDRAULIC SCHEMATIC
