©
1982 Caterpillar
All Rights Reserved
Printed in U.S.A.
SENR2863
November 1982
920, 930, 930T & 930T SERIES II
Hydraulic System
920
41J1-UP
930
71H1-UP
930, 930T &
930T Series II
75J1-UP
79J1-UP
17B1-UP
62K1-UP
41K1-UP
73U1-UP
SENR2863
6 Page, UHE
ITEM DESCRIPTION
1
RELIEF VALVES (FOUR)
a. HEAD END TILT CIRCUIT
b. ROD END TILT CIRCUIT
c. HEAD AND ROD END - ATTACHMENT
2 MAIN CONTROL VALVE - LIFT AND TILT
3 MAIN RELIEF VALVE
4
MAKE-UP VALVES (TWO)
HEAD AND ROD END LIFT CIRCUITS
5
CONTROL VALVE - ATTACHMENT
a. MUTIPURPOSE BUCKET
b. SIDE DUMP BUCKET
6
TILT CYLINDERS (TWO)
7
ATTACHMENT CYLINDERS
a. MUTIPURPOSE BUCKET
b. SIDE DUMP BUCKET (ONE ONLY)
8 LIFT CYLINDERS (TWO)
9 STEERING VALVE
10 STEERING CYLINDERS (TWO)
11 NOT USED
12
HYDRAULIC PUMPS
a. IMPLEMENT
b. STEERING
13 FILTERS
14 HAND METERING UNIT (STEERING)
15 NOT USED
16
DIVERTER VALVE (STEERING)
17
HYDRAULIC PUMP (WHEEL DRIVEN)
SUPPLEMENTAL STEERING
18 NOT USED
19
TANK GROUP
A TEE TEST - IMPLEMENT
B TILT CIRCUIT - ROD END
C TILT CIRCUIT - HEAD END
D LIFT CIRCUIT - HEAD END
E TEE TEST - STE ERING
PRESSURE TAPS
