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Groundsmaster 4000--D/4010--D Hydraulic SystemPage 4 -- 115
Removal (Fig. 87)
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 of hydraulic 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 ball
joints.Removesteeringcylinder with ball joints from ma-
chine.
6. If hydraulic fittings are to be removed from steering
cylinder, mark fitting orientation to allow c orrect assem-
bly. Remove fittings from cylinder and discard O --rings.
7. If needed, remove ball joints from steering cylinder.
Installation (Fig. 87)
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 using marks made during theremoval
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 jointthrough hole on steering arm.
Secure with axle washer and hex slotted nut. Slide fixed
end of cylinder through hole on axle. Secure withslotted
hexnut.Torque slottedhexnutsto 100 ft--lbs(135N--m)
and then continue tightening the nut until hex nut groove
aligns with cotter pin hole in ball joint. Install cotter pin
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 new hydraulic fluid as required.
6. Properly fill hydraulic system (see Charge Hydraulic
System in this section).
7. After assembly is completed, operate steering cylin-
der to verify that hydraulic hosesand fittings arenot con-
tacted by anything.
Hydraulic
System