Meritor PreSet Maintenance Manual page 11

3 Removal and Disassembly
8. Place a container under the hubcap, or drive axle shaft for a
drive hub, to receive the draining oil, then remove the hubcap
or drive axle shaft. Do not reuse the oil. Correctly dispose of the
lubricant.
9. Examine the spindle nut to determine the type of locking
system. Follow the manufacturer's recommended procedures
to correctly disengage the locking device.
10. Use the following procedure to remove the PRO-TORQ™ nut.
A. Remove the keeper from the PRO-TORQ™ nut. Use a
screwdriver to pry out the keeper arm from the groove on
each side of the nut until the keeper is released. Discard
the PRO-TORQ™ keeper. Do not reuse.
B. Use a socket wrench to remove the PRO-TORQ™ nut.
Figure 3.4.
Figure 3.4
SINGLE TAB
FLAT
ARMS
PRO-TORQ™ NUT
Figure 3.4
WARNING
Do not loosen the axle spindle nuts by either striking them
directly with a hammer, or striking a drift or chisel placed
against them. Damage to the parts will occur which can cause
possible loss of axle wheel-end components and serious
personal injury.
11. Remove the spindle nut system. Figure 3.5. Be careful when
you remove the hub that you do not damage the outer bearing
by dropping it on the floor.
If part of the seal remains on the spindle: Be careful that
you do not damage the spindle when you remove it.
8 Meritor Maintenance Manual MM-0637 (Revised 07-12)
NUT
KEEPER
4005542a
Figure 3.5
Figure 3.5
12. Slide the hub off the spindle. Remove and save the outer
bearing cone.
If the hub is difficult to remove because the seal is
stuck on the spindle: Use a mechanical puller to remove
the hub. Figure 3.6.
If part of the seal remains on the spindle: Carefully
remove the part of the seal that remains on the spindle.
Figure 3.6
Figure 3.6
13. Place the hub on its outboard end. Remove and discard the
seal. Do not reuse the seal.
4005739a
4005740a