Toro Groundsmaster 4100-D Service Manual page 151

Removal (Fig. 77)
1. Park machine on a level surface, lower cutting deck,
stop engine, engage 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 this section.
3. To prevent contamination of hydraulic system during
steering cylinder removal, thoroughly clean exterior of
cylinder and fittings.
NOTE: To ease installation, label the hydraulic hoses to
show their correct position on the steering cylinder.
4. Remove hydraulic hoses from steering cylinder.
5. Remove cotter pins, hex slotted nuts, axle washer
and ball joint spacer from the threaded ends of ball
joints.
6. Separate steering cylinder ball joints from rear axle.
Remove steering cylinder with ball joints from machine.
7. 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.
8. If needed, remove ball joints from steering cylinder.
Groundsmaster 4100--D/4110--D
Installation (Fig. 77)
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
into port 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).
3. Thoroughly clean tapered surfaces of ball joints and
axle bores.
4. Slide rod end ball joint through hole on steering arm.
Secure with axle washer and hex slotted nut. Slide bar-
rel end ball joint through hole on axle. Secure with ball
joint spacer and slotted hex nut. Torque slotted hex nuts
to 100 ft- -lbs (135 N- -m) and then continue tightening
the nut until hex nut groove aligns with cotter pin hole in
ball joint (final torque on hex nuts should be from 100 to
125 ft--lb (136 to 169 N--m)). Install cotter pin to nut and
ball joint.
5. Using labels placed during cylinder removal, proper-
ly install hydraulic hoses to steering cylinder (see Hy-
draulic Hose and Tube Installation in the General
Information section of this chapter).
6. Fill reservoir with hydraulic fluid as required.
7. After assembly is completed, operate steering cylin-
der to verify that hydraulic hoses and fittings are not con-
tacted by anything.
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