5.
Fill the axle with the recommended lubricant.
See
for recommended lubricants and
for lubricant capacities.
NOTE: Some Detroit axles have a small
tapped and plugged hole near and below the
housing oil fill hole. This smaller hole is for a
lubricant temperature indicator only, and
should not be used as a fill or level hole.
5.1
Fill the axle through the oil fill hole. Lubri-
cant should be level with the bottom of
the oil fill hole. To check fluid level, see
5.2
Install and tighten the fill plug 30 lbf·ft (41
N·m).
Meritor
Axle Draining
1.
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.
2.
Clean the drain plugs. 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.
NOTE: Meritor recommends using magnetic
plugs with elements having a minimum pickup
capacity of two pounds (one kilogram) of low-
carbon steel in plate or bar form. Magnets will
rapidly lose effectiveness as collected material
bridges the gap between the two poles. Clean
or change the plugs before this occurs. It may
be necessary to clean or change the plugs one
or more times between lubrication change inter-
vals.
3.
After cleaning the drain plugs, install and tighten
the plugs 35 lbf·ft (47 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 lubricant. See
for
approved axle lubricants and see
or
for axle capacities.
NOTE: Some Meritor axles have a small tapped
and plugged hole located below the housing oil
fill hole. This smaller hole is for the lubricant
temperature sensor only and must not be used
as a fill or level hole.
2.
Install the fill hole plug and tighten it 35 lbf·ft (47
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.
Rear Axle
35
Business Class M2 Maintenance Manual, November 2016
35/5
Property of American Airlines
