jcb 4CX Service Manual

2 - 1
System Type Full power hydrostatic with selectable 2-wheel, 4-
wheel and crab steer modes on 4 wheel steer
machines.
Oil supply from Main Hydraulic Pump via Priority Valve
to Steer Unit Valve complete with Load Sensing and
Integral Relief Valve.
Double acting power track rod rams mounted on axles.
2 Wheel Steer Machines
STEER UNIT - FIG 1
Model 200 OSPC
- Volumetric Displacement 200 cc/rev
- Relief Valve Fitted
- Check Valve Fitted
- Shock Valve Fitted
- Relief Valve Operating Pressure (at 1500 revs/min) 120 ± 3 bar 122 ± 3.5 kgf/cm
2
1740 ± 50 lbf/in
2
-Shock Valve Operating Pressure 175 - 190bar 178 - 199 kgf/cm
2
2538 - 2756 lbf/in
2
Model 250 OSPC
- Volumetric Displacement 250 cc/rev
- Relief Valve Fitted
- Check Valve Fitted
- Shock Valve Not Fitted
- Relief Valve Operating Pressure (at 1500 revs/min) 120 ± 3 bar 122 ± 3.5 kgf/cm
2
1740 ± 50 lbf/in
2
PRIORITY VALVE - FIG 2
-Stand by Pressure 7 bar 7.1 kgf/cm
2
102 lbf/in
2
4 Wheel Steer Machines
STEER UNIT - FIG 1
Model 160 OSPC
- Volumetric Displacement 160 cc/rev
- Relief Valve Fitted
- Check Valve Fitted
- Shock Valve Fitted
- Relief Valve Operating Pressure (at 1500 revs/min) 120 ± 3 bar 122 ± 3.5 kgf/cm
2
1740 ± 50 lbf/in
2
- Shock Valve Operating Pressure 175 - 190bar 178 - 199 kgf/cm
2
2538 - 2756 lbf/in
2
PRIORITY VALVE - FIG 2
-Stand by Pressure 7 bar 7.1 kgf/cm
2
102 lbf/in
2
Section H Steering
9803/3280
Section H
2 - 1
Issue 1
Technical Data
LS
LS
EF
P
LS
FIG 1
FIG 2
A263810
A263820
www.WorkshopManuals.co.uk
Purchased from www.WorkshopManuals.co.uk

jcb 4CX Specifications

General

Brand	jcb
Model	4CX
Category	Compact Loader
Language	English