jcb 1CX, Service Manual

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1 - 3
Section E Hydraulics
9803/8550
Section E
1 - 3
Issue 4*
Technical Data
Note: System Cleanliness is to be to ISO 16/13 - See page E/3 - 1 for guidance.
From machine number 752463
Auxiliary Pump - Standard
Type
Displacement
Maximum Working Pressure
Maximum Speed
Maximum Input Torque
Auxiliary Pump - High-Flow
Type
Displacement - Front Section
Displacement - Rear Section
Maximum Working Pressure
Maximum Speed
Maximum Input Torque
Main Pump (2-off)
Type
Displacement
Control
Maximum Working Pressure
Maximum Speed
Charge Pressure (oil temperature at 50° C)
up to machine number 807734
from machine number 807735
Servo Joysticks up to machine no. 807146
Output Characteristics - Transmission control spools
Output Characteristics - Loader control spools
Servo Joysticks from machine no. 807147
Output Characteristics - Single Lever Drive Control
Transmission for/rev (spools 2 & 4)
Transmission left/right (spools 1 & 3)
Loader
Output Characteristics - Dual Lever Drive Control
Transmission control spools
Loader control spools
Hydraulic Motors
Type
Displacement
Maximum Working Pressure
Maximum Speed
Maximum Flow
Gear
48 l/min (10.5 UK gal/min, 12.7 US gal/min) at 3000 rev/min
185 - 192 bar (2683 - 2785 lbf/in
2
, 188 - 196 kgf/cm
2
)
3200 rpm
121 Nm (89 lbf ft, 12 kgf m)
Tandem gear
90 l/min (19.8 UK gal/min, 23.8 US gal/min) at 3600 rev/min
57 l/min (12.5 UK gal/min, 15 US gal/min) at 3600 rev/min
185 - 192 bar (2683 - 2785 lbf/in
2
, 188 - 196 kgf/cm
2
)
3600 rpm
121 Nm (89 lbf ft, 12 kgf m)
Tandem axial piston Series 42 M28
28 cc/rev (1.71 in
3
/rev)
Servo non-feedback proportional, 15 bar (218 lbf/in
2
) to give max
pump displacement.
350 bar (5076 lbf/in
2
)
3900 rpm
7.5 bar (109 lb/in
2
) at engine idle
19.5 bar (283 lb/in
2
) at 3000 rev/min
11.5 bar (167 lb/in
2
) at engine idle
23.5 - 24 bar (340 - 348 lb/in
2
) at 3000 rev/min
Note: Earlier machines may be adjusted to the higher pressure if
there is a requirement to raise the lift arms at engine idle.
5 bar (72 lb/in
2
) at 15% stroke.
15 bar (217.5 lb/in
2
) at 95% stroke.
3.3 - 3.7 bar (48 - 53 lb/in
2
) at 15% stroke.
14.5 - 16.5 bar (210 - 239 lb/in
2
) at 95% stroke.
3.5 bar (51 lb/in
2
) at 15% stroke.
5.5 bar (80 lb/in
2
) at 15% stroke.
3.5 bar (51 lb/in
2
) at 15% stroke.
5.5 bar (80 lb/in
2
) at 15% stroke.
3.5 bar (51 lb/in
2
) at 15% stroke.
MCR03
328 cc/rev (20 in
3
/rev)
414 bar (6000 lbf/in
2
) continuous
237 rpm continuous
84 l/min (18.5 UK gal/min, 24 US gal/min) continuous
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