Groundsmaster 4300--D Page 6 -- 11 Chassis
Removal (Fig. 8)
1. Park machine on a level s urface, lower cutting
decks, stop engine, engage parking brake and remove
key from the ignition switch.
2. Chockfrontwheelstopreventmachinefromshifting.
3. Loosen, but do not remove, rear wheel lug nuts.
4. Jack up rear of machine and remove rear wheel as-
sembly(seeWheelRemovalinthissection). Makesure
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. Ifrightsidemotorhousingisbeingremoved,remove
cotter pinand slotted hexnut thatsecure steeringcylin-
derballjointtodraglink.Separatesteeringcylinderfrom
drag link.
7. Remove four (4) cap screws and lock washers that
securewheelmotortomotorhousing.Slidewheelmotor
assembly (with wheel hub and hydraulic hoses at-
tached)frommotorhousing.Positionwheelmotoraway
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 housingshaft 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
flangebushingsinrearaxleforwearordamage.Ifbush-
ings need replacement:
A. Use abushing removaltooltoextractbothflange
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.
C. Applygreasetotheinsideandoutside ofthenew
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
housingshaftslideseasilyintobushings.Ifbindingis
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.
Holdthe motorhousing inplaceandinstall theretaining
ring (item 13) onto the end of the spindle shaft.
4. Placethespindle captothetop ofthe motorhousing
shaft and secure with flange head screw.
5. Slidewheelmotorassembly(withwheelhubandhy-
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
steeringcylinderballjointtodraglinkwithslottedhexnut
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
thatno contactismade betweenany machinecompon-
entsastherearwheelsaremovedfromlocktolock.Ad-
just if necessary.
Chassis
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