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Groundsmaster 4000--D Hydraulic SystemPage 4 -- 139
Removal (Fig. 96)
1. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
2. To prevent contamination ofhydraulic system during
manifold removal, thoroughly clean exterior of manifold
and fittings.
3. Disconnect hydraulic lines from manifold and put
caps or plugs on open hydraulic lines and fittings. Label
disconnected hydraulic lines for proper reassembly.
4. Remove hydraulic manifold from the frame using
Figure 96 as guide.
5. If hydraulic fittings are to be removed from manifold,
mark fitting orientation to allow correct assembly. Re-
move fittings from manifold and discard O--rings.
Installation (Fig. 96)
1. If fittings were removed from manifold, lubricate and
place new O--rings onto fittings. Install fittings into man-
ifold openings using marks made during the removal
process to properly orientate fittings. Tighten fittings
(see Hydraulic Fitting Installation in the General Infor-
mation section of this chapter).
2. Install hydraulic manifold to the frame using Figure
96 as guide.
A. If valve plate (item 2) was removed, tighten lock
nut (item 7) until washer begins to seat in isolator
(item 5). Do not cause isolator to be deformed during
valve plate installation.
3. Remove caps and plugs from fittings and hoses. Us-
ing labelsplacedduring manifold removal,properlycon-
necthydrauliclinesto manifold (see HydraulicHoseand
Tube Installation in the General Information section of
this chapter).
Hydraulic
System