Spicer Tandem Drive Axles Service Manual S400 - Manual (Page 6)

IMPORTANT
CAUTION
BREATHING BRAKE DUST MAY BE HAZARDOUS TO YOUR HEALTH AND
MAY CAUSE SERIOUS RESPITORY 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.
IMPORTANT
GENERAL PRECAUTIONS
READ THIS SECTION BEFORE STARTING
ANY SERVICE PROCEDURES
SAFTEY PRECAUTIONS
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 result from any particular
method.
GENERAL AXLE DESCRIPTION
The Spicer tandem rear axle assemblies consist of two
heavy duty, hypoid, single reduction differential carrier
assemblies. The forward axle contains a power divider,
which does exactly what its name implies. It divides
power between the forward rear and rear rear axle
assemblies.
The forward axle receives power through a set of helical
gears within the power divider. The rear rear axle
receives power from the power divider output shaft that
extends through the forward axle housing. The complete
forward axle differential carrier assembly and power
divider can be removed from the axle housing as a unit.
Follow the sections of this manual that cover individual
service needs.
Accordingly, anyone who uses a service procedure or
tool different than shown must first thoroughly satisfy
themselves that their safety, nor the vehicle safety, will
be jeopardized by the service method selected.
END YOKES AND FLANGES
CAUTION: Hammering on end yokes could
damage the bearing bores or misalign yoke lugs and
result in early failures of journal needle bearings or
other driveline 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 companion flanges should be removed or
installed using the recommended method such as
that described herein.
CLEANLINESS
Axle components should be steam cleaned prior to
removal from the vehicle. Dirt is abrasive and can cause
premature wear of otherwise serviceable parts. Service
personnel should use a wash tank for thorough cleaning
of parts just prior to reassembly.
Safety glasses should be worn
at all times when assembling
or disassembling axles.
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