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Groundsmaster 4000--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 axle 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 axle mount to equipment frame. Lower rear
axle and rear axle mount from machine.
11.Remove lock nut and washer from pivot pin that at-
taches rear axle to rear axle mount. R emove washer
headscrewthat securesflange ofpivotpintoaxle mount
(Fig. 13).
12.Remove pivot pin. Separate rear axle mount from
rear axle. Note location of thrust washers on both ends
of axle mounting boss.
Installation (Fig. 10)
1. Position rear axle mount to axle. Install thrust wash-
ers between axle boss and axle mount. The thinner
thrust washer should be installed on the hydraulic motor
end of the axle (toward the r ear 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 axle
mount and axle mounting boss. Add thrust washers if
needed to adjust c learance.
2. Install axle pivot pin to secure axle to rear axle
mount. Install washer and lock nut onto pivot pin. Tight-
en lock nut and then loosen it slightly to allow the axle
pin to pivot freely. Secure pivot pin to axle mount with
washer head screw (Fig. 13).
3. Position axle and rear axle under machine. With a
jack, raise assembly to machine frame and align mount-
ing holes of rear axle mount and machine frame.
4. Secure rear axle mount to frame with six (6) cap
screws, flat washers and flange nuts.
5. Install cap screw and flange nut that secures front
corner of 4WD hydraulic manifold to rear axle mount.
6. If removed, install the tie rod to rear axle (Fig. 12).
Tighten ball joint castle nuts and install new cotter pins.
7. Attach steering cylinder hydraulic tubes to rear axle
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