Spicer Drive Axles Service Manual J175-S, J190-S, J210-S, J220-S, J230-SB, W230-S - Manual (Page 7)

5
CAUTION
The Spicer Heavy Duty Single Reduction Rear Drive Axle
is a full floating hypoid gear carrier assembly in one
piece HSLA steel axle housing. The hypoid pinion is
straddle mounted, having two tapered roller bearings
ahead of the pinion teeth for forward and rear thrust,
and also having a third bearing behind the pinion teeth
for radial load. The differential itself uses four precision
forged pinion mate gears, a forged cross, and precision
forged side gears. A fresh supply of lube oil is fed to the
differential assembly by our Spicer positive flow lube
system. Axle shafts and drive pinion splines are of the
rolled involute type.
Follow the sections of this manual that cover individual
service needs.
This manual covers maintenance and rebuild procedures
for the Spicer J175-S, J190-S, J210-S, J220-S, J230-SB
and W230-S rear drive axle assemblies.
GENERAL AXLE DESCRIPTION
READ THIS SECTION BEFORE STARTING
ANY SERVICE PROCEDURES
IMPORTANT
GENERAL PRECAUTIONS
Accordingly, anyone who uses a service procedure or
tool different than shown must insure that their safety,
and the vehicle's safety, will not be jeopardized by the
service method selected.
END YOKES AND FLANGES
CAUTION: Hammering on end yokes can close in
the bearing bores or misalign yoke lugs and result in
early failures of journal needle bearings or other driv-
eline components. Serious damage can also be done
internally to the ring and pinion set or pinion bearings
by hammering on external parts. End yokes or compan-
ion flanges should be removed or installed using the
recommended methods outlined in this manual.
Axle components should be steam cleaned prior to
removal from the vehicle. Dirt is abrasive and will cause
premature wear of otherwise serviceable parts.
Service personnel should use a wash tank for thorough
cleaning of parts just prior to reassembly.
BREATHING BRAKE DUST MAY BE HAZARDOUS TO YOUR HEALTH AND
MAY CAUSE SERIOUS RESPIRATORY OR OTHER BODILY HARM.
FOLLOW 0.S.H.A. STANDARDS FOR PROPER PROTECTIVE DEVICES TO BE USED
WHEN WORKING WITH BRAKE MATERIALS.
BRAKE LININGS CONTAIN NON-ASBESTOS FIBERS
AVOID CREATING DUST
DO NOT REMOVE BRAKE DRUM WITHOUT PROPER PROTECTIVE EQUIPMENT.
DO NOT WORK ON LININGS WITHOUT PROPER PROTECTIVE EQUIPMENT.
DO NOT REPLACE LININGS WITHOUT PROPER PROTECTIVE EQUIPMENT.
DO NOT ATTEMPT TO SAND, GRIND, CHISEL, FILE, HAMMER OR ALTER BRAKE
LININGS IN ANY MANNER WITHOUT PROPER PROTECTIVE EQUIPMENT.
CLEANLINESS
5
Proper service and repair of vehicle components is
important to the safe and reliable operation of all motor
vehicles. This applies particularly to driving axles such
as the ones described in this manual. The procedures
recommended and described in this manual are tested,
and effective methods for performing service operations.
Follow each procedure closely, making use of both the
text and illustrations. Some of these service procedures
show the use of certain tools designed specifically for
the operation being performed. They are shown as a
preferred means of performing the operation. It is not
practical to anticipate and advise the service trade of all
possible alternative methods, and of all possible hazard-
ous consequences that could occur.
SAFTEY PRECAUTIONS
Safety glasses should be worn
at all times when assembling
or disassembling axles.