freightliner COLUMBIA CL112 Maintenance Manual page 85

35
Commercially available automatic transmission
fluid may be used in place of SAE 10 engine oil.
Automatic transmission fluid can be used for all
temperatures; do not mix it with kerosene. To
prevent component damage, do not mix engine
oil and automatic transmission fluid.
4. Using the recommended lubricant, fill the shift
unit housing through the oil fill hole until the lubri-
cant is level with the bottom of the opening.
5. Coat the threads of the fill plug with a small
®
amount of Loctite 242, or equivalent sealant.
Install the fill plug finger-tight in the rear axle shift
unit housing. Using a wrench, tighten it an addi-
tional 1-1/2 turns.
35–02 Axle Breather and Axle
Lubricant Level
Inspection
For all axles, including tandem-drive axles and two-
speed axles, do the procedures 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
Meritor ®
CAUTION
Failure to keep the rear axle filled to the proper
level with the recommended lubricant can result in
rear axle damage.
1. Park the vehicle on level ground, set the parking
brakes, and chock the tires.
IMPORTANT: Oil level must be checked at each
M1 interval on Meritor axles.
2. Clean the fill plug and the area surrounding the
fill plug on the side of the axle carrier. Remove
the plug. Check lubricant level when the axle is
cold, or near room temperature.
NOTE: Some Meritor axles have a small tapped
and plugged hole near and below the housing
oil fill hole. This smaller hole is for a lubricant
35/6
temperature indicator only, and should not be
used as a fill or level hole.
3. Check that the lubricant is level with the bottom
of the fill hole. See
leaks, and correct as needed.
4. Install and tighten the fill plug 35 lbf·ft (47 N·m).
IMPORTANT: Always check the axle breather
whenever checking lubricant level. Check the
breather more frequently under adverse operat-
ing conditions.
5. Check the axle housing breather. Make sure that
it is open and unclogged. See
breather is plugged or damaged, clean or re-
place it as needed.
2
06/07/94
1. Axle Housing
Breathers
Fig. 6, Meritor Axle Housing Breathers
6. On non-drive axles using oil-lubricated wheel
bearings, check the oil level at the wheels, and
add oil if low. Use the same lubricant recom-
mended for the drive axle.
NOTE: When adding to or checking the oil level,
make certain the hub cap and plug are clean
before removing the plug; this will minimize the
possibility of dirt and road grime entering the
assembly.
Rear Axle
Fig. 2. If low, check for oil
Fig. 6. If the
1
3
f350062a
2. Carrier Oil Fill Plugs
3. Interaxle Differential
Columbia Maintenance Manual, July 2005