Drive Head Maxtrac - Dismantling
As the drivehead cannot be dismantled whilst fitted on the
machine, we recommend that the complete axle is removed,
refer to Rear Axle - Removal and Replacement.
Note: The crownwheel and pinion are matched and should
be renewed as a pair if either one is damaged or excessively
worn. The two differential case halves are also matched as
are the differential side gears and planet gears, do not use
unmatched halves or gears.
1 Position the drive head as shown, with the crownwheel
at the top. Remove capscrews.
2 Match - mark the brake piston housing and drive head.
Pull off the brake piston housing.
3 Drive out the differential side nut locking pin, to allow
readjustment on assembly. Remove the other brake
piston housing only if damaged, but remove its locking
pin regardless (to allow sideload adjustment on
assembly).
4 Lift out the crownwheel/differential assembly.
Note: If both brake piston housings are to be removed,
mark the crownwheel end of the drive head casing to ensure
that the assembly is returned to its original position.
5 Using a soft faced hammer, hit the pinion end shaft until
the pinion is free from its front bearing, then withdraw
the pinion.
6 Withdraw the pinion seal and outer bearing cone.
7 If necessary, drive out the pinion inner bearing cup and
shims. Discard the shims. Repeat for the outer bearing
cup if required. Note that there are no shims for the
outer bearing cup.
51 - 1
Section F Transmission
9803/7130
Section F
51 - 1
Issue 1
Rear Axle
11
22
S256050
S256060
S256070
S256080
33
44
77
77
77
66
55
66
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