35–00 Safety Precautions
Safety Precautions in this section apply to all
procedures within this group.
DANGER
When working on the vehicle, shut down the en-
gine, set the parking brake, and chock the tires.
Before working under the vehicle, always place
jack stands under the frame rails to ensure the
vehicle can not drop. Failure to follow these steps
could result in serious personal injury or death.
35–01 Axle Lubricant and Filter
Change, and Magnetic
Strainer Cleaning
(Synthetic Lubricant)
NOTICE
When operating under adverse conditions, it may
be necessary to change the axle lubricant at more
frequent intervals than listed in the scheduled
maintenance tables. Failure to do so could result
in axle damage.
IMPORTANT: For all axles, including tandem-
drive axles and two-speed axles, do the proce-
dures under the heading, "All Axle Models." For
a two-speed axle with a shift unit, also change
the shift unit lubricant. See under the heading,
"Two-Speed Axles With Shift Unit."
All Axle Models
Detroit
™
IMPORTANT: On Detroit axles, the oil change
interval for long haul vehicles can be extended
to 500,000 miles (800 000 km) for axles with
weight ratings of 34,000 to 40,000 lb (15 000 to
18 000 kg) using synthetic lubricant if a lubricant
analysis shows adequate quality. Oil must be
changed at least every four years, and more
often if the axle is exposed to high temperatures
and steep grades.
1.
Park the vehicle on a level surface, shut down
the engine, and set the parking brake. Chock the
tires.
2.
Clean the fill plug and the area around it. In the
axle housing rear cover, remove the plug from
the oil fill hole. See
1
2
4
3
2
B
A
12/07/2010
f350509a
A. Front View
B. Rear View
1.
Axle Breather
2.
Breather Hose
3.
Temperature Sensor Port
4.
Oil Fill Plug
Fig. 1, Detroit Tandem Axle (forward axle shown)
Rear Axle
35
122SD and Coronado 132 Maintenance Manual, February 2016
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