Toro Groundsmaster 3280-D Service Manual page 151

Axle Pivot Bushings (Fig. 5)
The rear axle must be held in place snugly by the axle
pivot pin. Excessive movement of the axle, which is
characterized by erratic steering, can indicate worn axle
pivot bushings. To correct the problem, replace the axle
pivot bushings (item 25).
1. Remove rear axle from machine (see Rear Axle Re-
moval in this section).
2. Use a drift punch and hammer to drive both axle pivot
bushings out of the axle pivot tube. Clean the inside of
the tube to remove dirt and foreign material.
3. Apply grease to the inside and outside of the new
bushings. Use an arbor press to install the bushings into
the front and back of the axle pivot tube. Bushings must
be flush with the axle tube.
4. Install rear axle to machine (see Rear Axle Installa-
tion in this section).
Steering Pivot Bushings (Fig. 5)
The steering pivot must fit snugly onto the mounting pin.
Excessive movement of the steering pivot may indicate
worn steering pivot bushings (item 21) or tie rod ball
joints (items 14 and 15).
1. Park machine on a level surface, lower cutting deck
(or implement), stop engine, engage parking brake and
remove key from the ignition switch.
2. Remove the lock nut, cap screw and thrust washer
that secure the steering cylinder rod end to the steering
pivot plate (Fig. 6).
3. Remove four (4) jam nuts to allow both tie rod ends
to be disconnected from the pivot plate. Inspect all tie
rod end ball joints for wear or damage and replace as
necessary.
4. Remove the retaining ring and thrust washer that se-
cure steering pivot (item 22) to rear axle. Slide the steer-
ing pivot off of the mounting pin on the bottom of the axle.
5. Use a drift punch and hammer to drive both steering
pivot bushings out of the steering pivot. Clean the inside
of the steering pivot to remove dirt and foreign material.
Also clean the mounting pin on the bottom of the rear
axle.
Groundsmaster 3280−D/3320
6. Apply grease to the inside and outside of the new
bushings. Use an arbor press to install the bushings into
the top and bottom of the steering pivot. Bushings must
be flush with the pivot plate.
7. Slide the steering pivot onto the axle mounting pin.
Secure the pivot in place with the thrust washer and re-
taining ring.
8. Connect each tie rod end to the pivot with two (2) jam
nuts. For each tie rod, tighten the first jam nut and then
tighten the second jam nut against the first to secure tie
rod end.
9. Install the thrust washer, cap screw and lock nut to
secure the steering cylinder rod end to the steering pivot
plate. Torque the nut from 130 to 150 ft-lb (176 to
203 N−m).
10.Lubricate the bushings through the grease fitting on
the steering pivot plate.
2
1
1. Steering pivot plate
2. Cap screw
Page 7 − 13
130 to 150 ft−lb
(176 to 203 N−m)
3
130 to 150 ft−lb
(176 to 203 N−m)
4
Figure 6
3. Thrust washer
4. Lock nut
Chassis