Removal (Fig. 89)
Park machine on a level surface, lower cutting
decks, stop engine, engage parking brake and remove
key from the ignition switch.
Installation (Fig. 89)
1.
1. If fittings were removed from steering cylinder, lubri-
cate and place new O--rings onto fittings. Install fittings
intocylinderportsusingmarksmadeduring theremoval
process to properly orientate fittings. Tighten fittings
(see Hydraulic Fitting Installation in the General Infor-
mation section of this chapter).
2.
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
Read the General Precautions for Removing and
2.
cure with retaining ring.
If removed, press ball joints into lift cylinder and se-
3.
steering cylinder removal, thoroughly clean exterior of
steering cylinder.
To prevent contamination of hydraulic system during
3. Slide ram end ball joint through holeon steering arm.
Secure with axle washer and slotted hex nut. Slide fixed
end of cylinder through hole on axle. Install spacer onto
ball joint and secure with slotted hex nut. Torque slotted
hex nuts from 100 to 125 ft--lbs (136 to 169 N--m) prior
to inserting cotter pins.
4.
bel the hydraulic hoses to show their correct position on
the steering cylinder for assembly purposes.
Remove hydraulic hoses from steering cylinder. La-
5.
Remove cotter pins, slotted hex nuts, axle washer
and ball joint spacer from the threaded ends of ball
joints.Removesteeringcylinderwithballjointsfromma-
chine.
4.
draulic Hose and Tube Installation in the General Infor-
mation section of this chapter).
Install hydraulic hoses to steering cylinder (see Hy-
6.
der.
If necessary, remove ball joints from steering cylin-
5.
6.
dertoverifythathydraulichosesandfittingsarenotcon-
tacted by anything.
Fill reservoir with hydraulic fluid as required.
After assembly is completed, operate steering cylin-
7.
cylinder, mark fitting orientation to allow correct assem-
bly. Remove fittings from cylinder and discard O--rings.
If hydraulic fittings are to be removed from steering
Groundsmaster 4500--D/4700--D
Page 4 -- 107
Hydraulic System
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