jcb 3CX - Page 306

2 - 5A
Section E
9803/3280
Section E
2 - 5A
Issue 1
Component Key:
1 Auxiliary (options)
2 Shovel service
3 Arms lift service
4 Auxiliary relief valves
5 Electric detent spool connector
6 Inlet port (secondary pump section P2)
7 Tank port
8 Inlet port (main pump section P1)
9 Service ports
bar kgf/cm
2
lbf/in
2
Auxiliary Relief Valves (A.R.V.)
Shovel Ram Head Side 310 315 4500
Shovel Ram Rod Side 170 175 2500
Note: Instructions for pressure testing and adjustment are described in Service Procedures, Loader Valve - Pressure
Testing.
Relief Valve Pressures
Loader Valve - Precision Control (Servo)
(Machines from January 2003)
A403690
P
T
T
LS
P
B
A
B
A
B
A
1 2 3
7
4
4
9 9 9
9
9
9
Hydraulics
Technical Data
5
6
8
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