shown on transparent hub cap.
Use SAE-140 gear type
oil if temperature is above
freezing, or SAE-90 if
For care and maintenance of the trailer tires see TM 9-
temperature is below freezing.
It is recommended that
seals be replaced at 100,000
miles or at brake lining
4-39. Wheel Bearings
a. Each axle hub is equipped with an oil seal which
The oil seal must be installed with
requires regular attention. Refer to current LO for
tool similar to one in figure 4-5.
lubricating instructions. Each hub should be checked
after unit has set sufficient time to allow oil to drain to
static condition. Oil should be maintained at oil level as