46 Meritor Differential Carrier 18X
4 Pinion Seal Replacement
The pinion seal replacement detailed below may be carried out
with the differential unit installed on the vehicle.
Disassembly
1. Unscrew the nuts (1) securing the propeller shaft to the
differential companion flange.
2. Disconnect the propeller shaft (2) and secure it to the chassis.
(Fig. 4.1)
3. With a drilling tool, remove the staking on the pinion lock nut.
(fig. 4.2)
4. Block the rotation of the flange (1) using a suitable tool (2).
5. Using a suitable wrench (3), torque multiplier (4) and a suitable
service tool slacken the pinion nut.
6. If you do not discard the pinion nut and flange, mark the flange
position on the pinion and remove it. This may require the use
of a standard bearing puller tool. (Fig. 4.4)
Fig. 4.1
Fig. 4.2
1
1
2
Fig. 4.4
Marks
Fig. 4.3
4
2
3
1