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Section E
2 - 7
Relief Valve Pressures
Loader Valve - Variable Flow
Priority Relief Valve†
Auxiliary Relief Valves (A.R.V.) @ 0.5gal/min (1.9 litres/min)
Shovel Ram Head Side
Shovel Ram Rod side
† Note: Steer circuit pressure is controlled by a relief valve housed in the hydraulic steer unit (Refer to Section H Steering).
The priority relief valve housed in the loader valve must be set at 2500 lb/in
operation of the relief valve housed in the hydraulic steer unit.
Weight:
2 Spool - TBA kg (TBA lbs)
3 Spool - TBA kg (TBA lbs)
Component Key:
1
Auxiliary (optional) service
2
Shovel service
3
Arms lift service
4
Pump inlet
5
Tank port
6
Load sense port (to pump)
7
Priority load sense port (from steer unit)
8
Priority work port (to steer unit)
9
Load sense carry over port (to backhoe valve)
10
Service ports
11
Auxiliary relief valve (rod side)
12
Auxiliary relief valve (head side)
13
Priority relief valve †
9
9803/3280
Hydraulics
Technical Data
2 1
3
0
0
0
0
Purchased from www.WorkshopManuals.co.uk
bar
kgf/cm
170 - 176
173 - 179
170 - 174
173 - 177
306 - 314
312 - 320
2
, this will ensure it does not interfere with the
!
0
0
8
@
£
Section E
lbf/in
2
2
2450 - 2550
2465 - 2520
4450 - 4550
4
5
6
7
A273670
2 - 7
Issue 2*
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