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Groundsmaster 4000--D Hydraulic SystemPage 4 -- 103
Removal (Fig. 69)
1. Park machine on a level surface, lower cutting
decks, stop engine, apply parking brake and remove
key from the ignition switch.
2. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
3. To prevent contamination ofhydraulic system during
cylinder removal, thoroughly clean exterior of cylinder
and fittings.
NOTE: To ease installation, tag the hydraulic hoses to
show their correct position on the steering cylinder.
4. Remove hydraulic hoses from steering cylinder.
5. Remove cotter pins, slotted hex nuts, axle washer
and ball joint spacer from the threaded ends of balljoints
(Fig. 69). Remove steering cylinder with ball joints from
machine.
6. If hydraulic fittings are to be removed from steering
cylinder, mark fitting orientation to allow correct assem-
bly. Remove fittings from cylinder and discard O--rings.
7. If needed, remove ball joints from steering cylinder.
Installation (Fig. 69)
1. If removed, install ball joints into steering cylinder.
2. If fittings were removed from steering cylinder, lubri-
cate and place new O--rings onto fittings. Install fittings
intoportopenings usingmarksmade duringtheremoval
process to properly orientate fittings. Tighten fittings
(see Hydraulic Fitting Installation in the General Infor-
mation section of this chapter).
3. Slide ram end ball joint throughhole on steering arm.
Secure with axle washer and hex slotted nut. Slide fixed
end of cylinder through hole on axle. Secure with slotted
hexnut.Torque slottedhexnuts to100 ft--lbs (135N--m)
and then continue tightening thenutuntil hex nut groove
aligns with cotter pin hole in ball joint. Install cotter p in
to nut and ball joint.
4. Install hydraulic hoses to steering cylinder (see Hy-
draulic Hose and Tube Installation in the General Infor-
mation section of this chapter).
5. Fill reservoir with hydraulic fluid as required.
6. After assembly is completed, operate steering cylin-
der toverifythathydraulic hoses and fittings are notcon-
tacted by anything.
Hydraulic
System