freightliner Custom Classic MT45 2022, Maintenance Manual

Page: 77 / 138

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 or motor, 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 cannot drop. Failure to follow these
steps could result in serious personal injury or
death.
35–01 Axle Lubricant Changing
Procedures for Detroit ™ and Meritor axles are pro-
vided below.
Detroit Axle
Axle Draining
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. Re-
move the plug from the oil fill hole. See
Fig. 1 .
CAUTION
Be careful when draining the axle oil. It may be
very hot, and could cause personal injury if it con-
tacts the skin.
3. Remove the plug at the bottom of the housing
and drain the lubricant while the unit is warm.
Allow enough time for all the old lubricant to
drain completely.
4. Clean the drain plug. For magnetic drain plugs, a
piece of key stock or any other convenient steel
slug may be used to short the two magnetic
poles and divert the magnetic field.
5. After cleaning the drain plug, install and tighten
the plug 30 lbf·ft (41 N·m).
Axle Filling
1. With the vehicle on a level surface, fill the axle
housings to the bottom of the oil fill hole (in the
carrier or housing) with recommended lubricant;
see
Table 1 . Refer to Table 2 for Detroit drive
axle lubricant capacities.
2. Install the fill hole plug and tighten it 30 lbf·ft (41
N·m).
3. After filling the carrier and housing assembly with
lubricant, drive the vehicle unloaded for one or
two miles (two or three kilometers) at speeds not
to exceed 25 mph (40 km/h) to thoroughly circu-
late the lubricant throughout the assembly.
11/07/2012 f350575
A
B
1
2
4
3
3
1
A. Front View
B. Rear View
1.
Breather Hose
2. Axle Housing Breather
3. Oil Drain Plug
4. Oil Fill Plug
Fig. 1, Component Locations, Detroit Axle
Rear Axle
35
Walk-In Van Chassis Maintenance Manual, July 2015
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