caution - Toro

8. Remove cap screw and flange nut that secures front
corner of 4WD hydraulic manifold to rear frame mount.
1
2
9. If required, remove tie rod ends from steering arms
on rear axle (Fig. 12). Remove the cotter pins and castle
nuts from the tie rod ball joints. Use a ball joint fork and
remove the tie rod ends from the axle steering arms.
3
4
10.Support rear axle to prevent it from falling. Remove
six (6) cap screws, flat washers and flange nuts that secure
rear frame mount to equipment frame. Lower rear
axle and rear frame mount from machine.
11.Remove lock nut and washer from pivot pin that attaches
rear axle to rear frame mount. Remove washer
head screw that secures flange of pivot pin to frame
mount (Fig. 13).
12.Remove pivot pin. Separate rear frame mount from
rear axle. Note location of thrust washers on both ends
of axle mounting boss.
1. Hydraulic hose
2. Hydraulic hose
3. Hydraulic tube
5
Figure 11
4. Hydraulic tube
5. Rear frame mount
Installation (Fig. 10)
1. Position rear frame mount to axle. Install thrust
washers between axle boss and frame mount. The thinner
thrust washer should be installed on the hydraulic
motor end of the axle (toward the rear of the machine).
With washers installed, there should be from 0.002” to
0.020” (0.05 mm to 0.51 mm) clearance between rear
frame mount and axle mounting boss. Add thrust washers
if needed to adjust clearance.
5
4
2 3
1
6
2. Install axle pivot pin to secure axle to rear frame
mount. Tighten lock nut and then loosen it slightly to allow
the axle pin to pivot freely. Secure pivot pin to frame
mount with washer head screw (Fig. 13).
3. If removed, install the tie rod to rear axle (Fig. 12).
Tighten ball joint castle nuts and install new cotter pins.
4. Position axle and rear mount under machine with a
jack. Raise assembly to machine frame and align
mounting holes of rear mount and machine frame.
5. Secure rear mount to frame with six (6) cap screws,
flat washers and flange nuts.
1. Tie rod
2. Dust cover
3. Cotter pin
1
Figure 12
4. Castle nut
5. Tie rod end
6. Steering arm (LH)
2
Axles, Planetaries
and Brakes
6. Install cap screw and flange nut that secures front
corner of 4WD hydraulic manifold to rear frame mount.
7. Attach steering cylinder hydraulic tubes to rear frame
mount with washers and bulkhead lock nuts (Fig. 11).
Install steering cylinder hoses to hydraulic tubes.
Figure 13
1. Pivot pin 2. Washer head screw
Groundsmaster 4100--D Page 6 - 15 Axles, Planetaries and Brakes