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Groundsmaster 4100--D Page 6 -- 15 Axles, Planetaries and Brakes
8. Remove cap screw and flange nut that secures front
corner of 4WD hydraulic manifold to rear frame mount.
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.
10.Support rear axle to prevent it from falling. Remove
six (6) cap screws, flat washers and flange nuts that se-
cure 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 at-
taches 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.
Installation (Fig. 10)
1. Position rear frame mount to axle. Install thrust
washers between axle boss and frame mount. The thin-
ner 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 wash-
ers if needed to adjust clearance.
2. Install axle pivot pin to secure axle to rear frame
mount. Tighten lock nut and then loosen it slightly to al-
low 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.
6. Install cap screw and flange nut that secures front
corner of 4WD hydraulic manifold to rear frame mount.
7. Attachsteering cylinderhydraulictubes torearframe
mount with washers and bulkhead lock nuts (Fig. 11).
Install steering cylinder hoses to hydraulic tubes.
1. Hydraulic hose
2. Hydraulic hose
3. Hydraulic tube
4. Hydraulic tube
5. Rear frame mount
Figure 11
4
3
2
1
5
1. Tie rod
2. Dust cover
3. Cotter pin
4. Castle nut
5. Tie rod end
6. Steering arm (LH)
Figure 12
1
2
3
5
4
6
1. Pivot pin 2. Washer head screw
Figure 13
1
2
Axles, Planetaries
and Brakes