Toro GroundsmasterR 4300-D Service Manual page 209

Removal (Fig. 8)
1. Park machine on a level surface, lower cutting
decks, stop engine, engage parking brake and remove
key from the ignition switch.
2. Chock front wheels to prevent machine from shifting.
3. Loosen, but do not remove, rear wheel lug nuts.
4. Jack up rear of machine and remove rear wheel as-
sembly (see Wheel Removal in this section). Make sure
to support machine with jack stands.
5. Remove cotter pin and slotted hex nut that secure
the tie rod end to the drag link. Separate the tie rod end
from the drag link.
6. If right side motor housing is being removed, remove
cotter pin and slotted hex nut that secure steering cylin-
der ball joint to drag link. Separate steering cylinder from
drag link.
7. Remove four (4) cap screws and lock washers that
secure wheel motor to motor housing. Slide wheel motor
assembly (with wheel hub and hydraulic hoses at-
tached) from motor housing. Position wheel motor away
from housing.
8. Support motor housing to prevent it from falling.
9. Remove the flange head screw, spindle cap and re-
taining ring that secure the motor housing shaft into the
axle tube. Slide the motor housing out of the axle tube.
Locate and retrieve thrust washer (item 29) from motor
housing shaft.
10.If necessary, remove drag link from motor housing.
11. Thoroughly clean the motor housing shaft. Inspect
the shaft for wear and replace motor housing if shaft is
worn or damaged.
12.Thoroughly clean the rear axle bore and inspect the
flange bushings in rear axle for wear or damage. If bush-
ings need replacement:
A. Use a bushing removal tool to extract both flange
bushings from the axle tube. Take care to not dam-
age the bore of the axle tube.
B. Clean the inside of the axle tube to remove any
dirt or foreign material.
Groundsmaster 4300--D
C. Apply grease to the inside and outside of the new
flange bushings.
D. Press new flange bushings into the top and bot-
tom of the axle tube until bushing flange bottoms on
tube.
E. After bushing installation, make sure that motor
housing shaft slides easily into bushings. If binding is
noted, locate and correct source of binding.
Installation (Fig. 8)
1. If removed, secure drag link to motor housing.
2. Apply a light coating of grease to motor housing
shaft.
3. Install thrust washer (item 29) onto the motor hou-
sing shaft and slide the shaft up through the axle tube.
Hold the motor housing in place and install the retaining
ring (item 13) onto the end of the spindle shaft.
4. Place the spindle cap to the top of the motor housing
shaft and secure with flange head screw.
5. Slide wheel motor assembly (with wheel hub and hy-
draulic hoses attached) into motor housing. Secure
wheel motor to motor housing with four (4) cap screws
and lock washers.
6. Connect the tie rod end to the drag link with slotted
hex nut and cotter pin.
7. If right side motor housing was removed, secure
steering cylinder ball joint to drag link with slotted hex nut
and cotter pin.
8. Lubricate the motor housing shafts through the
grease fittings on the rear axle.
9. Install rear wheel assembly (see Wheel Installation
in this section). Make sure that lug nuts are torqued
evenly in a crossing pattern from 70 to 90 ft- -lb (95 to
122 N- -m).
10.Check rear wheel toe--in (see Operator's Manual).
11. After all adjustments have been made, make sure
that no contact is made between any machine compon-
ents as the rear wheels are moved from lock to lock. Ad-
just if necessary.
Page 6 - - 11 Chassis