Spicer Steer and Drive Wheel Ends Service Manual - Manual (Page 13)

11
Maintenance &
Inspec
ti
on
Maintenance & Inspection
Wheel-end Disassembly Inspection
(Complete System Tear-down)
If any abnormal conditions are found during inspection,
remove wheel-end for inspection.
Lube change intervals as determined by the manufacturer dic-
tate when service is performed.
Note: Manufacturer is defined as the final assembler of the
product or the particular system supplier.
When reassembling industry standard wheel-ends, assemble
per TMC RP-622, TMC RP-618, and TMC RP-631. Seals and
gaskets must be replaced.
Failed Component Analysis
Save prematurely failed parts and lube samples for analysis.
The lubricant sample collected should be at least four ounces.
A similarly sized new lubricant sample (not previously used)
is also required. This will aid in supplier assisted detection
and prevention of premature failures. The components’ his-
tory of usage should also be provided (i.e., vehicle’s vocation,
mileage, maintenance records, and history of inspection and
repair/replacement of components such as seals, seal wear
rings, lubricant, bearings, etc.).
Service Intervals
Service interval ranges from 12,000 miles to 100,000 miles in
over-the-road service, depending on axle type, manufacturer
recommendations, and lubricant performance. Mineral oil
based lubricants have lower initial costs than synthetic lubri-
cants, but need to be changed more frequently in some equip-
ment. When choosing a lubricant, the fleet needs to consider:
• The manufacturer’s recommendation for the axle
make and model in service
• The fleet savings associated with extended service
intervals
• The total cost of the lubricant
Note: Because seal performance may vary when switching
lubricants, consult your seal supplier for compatibility
concerns.
Lubrication Requirements
The ability of a drive axle to deliver quiet, trouble-free opera-
tion over a period of years is largely dependent upon the use
of good quality gear lubrication in the correct quantity. The
most satisfactory results can be obtained by following the
directions contained in this manual.
The following lubrication instructions represent the most cur-
rent recommendations from the Commercial Vehicle Systems
Division of Dana Corporation.
Approved Lubricants
General - Gear lubrications acceptable under military specifi-
cation (MILSPEC) MIL-L-2105D (Lubricating Oils, Gear, Mul-
tipurpose) are approved for use in Dana Drive Axles. The
MIL-L-2105D specification defines performance and viscosity
requirements for multigrade oils. It supersedes both
MIL-L-2105B, MIL-L-2105C and cold weather specification
MIL-L-10324A. This specification applies to both petroleum-
based and synthetic based gear lubricants if they appear on
the most current “Qualified Products List” (QPL-2105) for
MIL-L-2105D.
Note: The use of separate oil additives and/or friction modifi-
ers are not approved in Dana Drive Axles.
Synthetic based - Synthetic-based gear lubricants exhibit
superior thermal and oxidation stability, and generally
degrade at a lower rate when compared to petroleum-based
lubricants. The performance characteristics of these lubri-
cants include extended change intervals, improved fuel econ-
omy, better extreme temperature operation, reduced wear and
cleaner component appearance. The family of Dana
Spicerª gear lubricants represents a premium quality
synthetic lube which fully meets or exceeds the requirements
of MIL-L-2105E. These products, available in both 75W-90
and 80/W-140, have demonstrated superior performance in
comparison to others qualified under the MILSPEC, as dem-
onstrated by extensive laboratory and field testing. For a com-
plete list of
Spicer¨ approved synthetic lubricants
contact your local Dana representative. See back cover of this
manual for appropriate phone number.
Makeup lube of different brands and manufacturers is not
recommended.
CAUTION