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2 Repairing the wheel end assembly
Fig. 6
Fig. 7
Fig. 8
14
ArvinMeritor Wheel end assembly
Disassembly
Remove the wheel nuts and retain. Pull off the wheels using a
wheel trolley. Remove the air inflation valve from its retainer in the
inside wheel.
Jack up the rear axle of the vehicle to vehicle manufacturers
recommendations and drain the oil from the axle(s).
Tighten each bolt equally and simultaneously, and avoid using
excessive force as this could damage the drum.
A soft-faced mallet may be used on the drum to loosen and ease
withdrawal.
Unscrew the drain plug in the hub and drain out all oil.
A: 3 planetary version
B: 4 planetary version
Remove retaining screws with suitable sized wrench fig. 6 and
remove the hub cover from the end of the hub casing using a
suitable screwdriver or pry bar - fig. 7.
Remove sun gear from axle shaft and hub casing before removing
hub casing as it may fall out of hub casing and get damaged
when the hub casing is removed. - fig 8
Block the rotation of the hub, and unscrew the socket screws
retaining the hub casing and withdraw the hub casing - fig. 9.
Fig. 9
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