jcb 4CX Service Manual

2 - 4
Relief Valve Pressures
Loader Valve - Fixed Flow
Component Key:
1 Arms lift service
2 Shovel service
3 Auxiliary (optional)
4 Pump section 1 - inlet
5 Pump section 2 - inlet
6 Pressure test port
7 Unloader Assembly
8 Unloader solenoid
9 Auxiliary relief valve
10 Tank port
11 High pressure carry-over (HPCO) port
12 Service ports
13 Load hold check valve assemblies
14 Data plate
Section E
Hydraulics
9803/3280
Section E
2 - 4
Issue 1
Technical Data
1
7
2 3
A262160
bar kgf/cm
2
lbf/in
2
Main Relief Valve (M.R.V.) 236 - 241 240 - 245 3420 - 3500
Unloader Valve 207 - 214 207 - 211 3000 - 3100
Auxiliary Relief Valves (A.R.V.)
Loader
Shovel Ram Head Side 172 - 179 176 - 183 2500 - 2600
Shovel Ram Rod side 310 - 317 316 - 323 4500 - 4600
Note: Instructions for pressure testing and adjustment are described in Service Procedures, Loader Valve - Pressure
Testing.
Weight
25kg (55lbs) (3 spool)
TBA (2 spool)
4
5
£
6
8
9
9
0
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$
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jcb 4CX Specifications

General

Brand	jcb
Model	4CX
Category	Compact Loader
Language	English