Pinion removal – Spicer Single Drive Axles Service Manual: S170, S190, S590 User Manual
Page 16
12
Drive Pinion
Pinion Removal
1. If a pilot web is used, remove the web capscrews.
a. For S190 disassembly, install a M10 x 1.50
bolt in the threaded jack holes found in-
between the pilot web capscrews.
b. For S190 disassembly, use the pry slots pro-
vided at each end of the pilot web.
2. Before the pinion nut can be loosened, you must
de-stake the nut from the slot of the pinion.
3. To de-stake the nut, use a chisel or drift with a
round tip. The flange of the nut must be pushed far
enough outward so that the staked area will not
interfere with the pinion threads when the nut is
removed. See diagram below.
Failure to de-stake the pinion nut will result in damage to
the drive pinion threads when removed. The pinion nut
should never be reused, always replace with new.
4. Remove the pinion nut.
1
1
1 - Threaded Jack Holes
1
1
1 - Slots
CAUTION
1 - Round Tipped Chisel
2 - Machined Slot In Pinion
3 - Nuts Staking Flange
1
2
3
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