Toro GroundsmasterR 4300-D Service Manual page 211

Rear Axle Removal (Fig. 9)
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. Remove both rear wheel assemblies (see Wheel Re-
moval in this section). Make sure that machine is sup-
ported with appropriate jack stands.
4. Remove cotter pins and slotted hex nuts that secure
the tie rod ends to the drag links. Separate the tie rod
ends from the drag links and remove tie rod from axle.
5. Remove steering cylinder from rear axle (see Steer-
ing Cylinder Removal in the Service and Repairs section
of Chapter 4 -- Hydraulic System).
6. Remove wheel motor housings from rear axle (see
Rear Axle Motor Housing Removal in this section).
7. To allow removal of the rear axle pivot pin, remove
the three (3) cap screws, lock washers and spacers that
secure CrossTrax AWD control manifold to frame
TM
(Fig. 10). Lower and support manifold taking care to not
damage hydraulic tubes.
8. Remove the jam nut (item 10) and thrust washer
(item 9) that secure the axle pivot pin (item 6) to the
frame.
9. Support rear axle to prevent it from falling.
10.Pull the axle pivot pin from frame and rear axle. This
will release the rear axle and thrust washers (item 7)
from the frame.
11. Carefully remove the rear axle from the machine.
Take care to not damage the CrossTrax
manifold or attached hydraulic tubes during axle remov-
al.
Rear Axle Service
1. Thoroughly clean the rear axle pivot pin. Inspect the
pin for wear and replace pivot pin if worn or damaged.
2. Thoroughly clean the rear axle pivot and inspect the
bushings in rear axle for wear or damage. If bushings
need replacement:
A. Use a bushing removal tool to extract both bush-
ings from the axle pivot. Take care to not damage the
bore of the axle.
B. Clean the inside of the axle pivot to remove any
dirt or foreign material.
C. Apply grease to the inside and outside of the new
bushings.
Groundsmaster 4300--D
D. Press new bushings into the axle pivot bore until
bushing is flush with axle.
E. After bushing installation, make sure that pivot
pin slides easily into bushings. If binding is noted, lo-
cate and correct source of binding.
FRONT
1. AWD control manifold
2. Frame bracket
3. Spacer (3 used)
Tie Rod Assembly (Fig. 11)
NOTE: The tie rod ball joint and jam nut at the grooved
end of the tie rod have left hand threads.
1. Loosen jam nuts and then unscrew ball joints from tie
rod.
AWD control
2. Thread new ball joints equally into tie rod so that ball
TM
joint center to center length is 36.240" (920.5 mm).
3. Thoroughly clean the tapered surfaces of the tie rod
ball joints before installing tie rod to drag links on rear
axle.
2
1. Tie rod
2. Ball joint (LH thread)
3. Jam nut (LH thread)
Page 6 - - 13
2
3
Figure 10
4. Lock washer (3 used)
5. Cap screw (3 used)
36.240"
(920.5 mm)
1.490"
(37.8 mm)
3 6 1
Figure 11
4. Ball joint
5. Jam nut
6. Tie rod groove
5
4
1
5 4
Chassis