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Groundsmaster 4500--D/4700--D Hydraulic SystemPage 4 -- 101
For solenoid and control valve service procedures, see
4WD/2WD Control Manifold Service in this section. Re-
fer to Figures 83 and 84 for cartridge valve and plug
installation torque.
IMPORTANT: A pilot piston (item 6) is placed be-
neath each of the relief valves in deck control man-
ifold ports RV8, RV9,RV10 and RV11. If a reliefvalve
is removed from the manifold, make sure to remove
pilot piston and label its position for assembly pur-
poses. When installing the pilot piston in the man-
ifold, make surethat the pilot piston slides fullyinto
the port before installing relief valve.
1. Manifold body
2. Zero leak plug (#6)
3. Zero leak plug (#4)
Figure 84
1
3
2
UP
2
25 ft--lb
(33.9 N--m)
20 ft--lb
(27.1 N--m)
20 ft--lb
(27.1 N--m)
Hydraulic
System