5.
Install and tighten the fill plug 40 to 60 lbf·ft (54
to 81 N·m).
IMPORTANT: Always check the axle breather
whenever checking the lubricant level. Check
the breather more frequently under adverse op-
erating conditions.
6.
Check the axle housing breather. Make sure that
it is unclogged and free from corrosion. See
Fig.
8
. If the breather is plugged or damaged, clean
or replace it as needed.
Two-Speed Axles With Shift Unit
Dana Spicer and Meritor
IMPORTANT: Also do the appropriate procedure
under the heading "All Axle Models."
NOTICE
Failure to keep lubricant at the specified level
could cause damage to the axle shift unit.
1.
Clean the shift unit oil fill plug, and the area sur-
rounding the plug. See
Fig. 6
. Turn the fill plug
counterclockwise to remove it.
2.
Insert a finger or pipe cleaner into the fill plug
hole and check the fluid level. The lubricant
should be level with the bottom of the fill hole. If
low, add the recommended lubricant.
NOTICE
Before adding additional lubricant, make sure of
the type currently in the shift unit. To prevent
component damage, do not mix engine oil with
automatic transmission fluid.
IMPORTANT: When the ambient temperature is
above 0°F (–18°C), use SAE 10 heavy-duty en-
gine oil, API service classification SD (sulfated
ash content must not exceed 1.85%). When the
ambient temperature is below 0°F (–18°C), use
one part kerosene to three parts SAE 10 heavy-
duty engine oil, API service classification SD
(sulfated ash content must not exceed 1.85%).
This cold-weather mixture can be safely used
up to 32°F (0°C).
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.
3.
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.
Rear Axle
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