Wheel Bearings

shown on transparent hub cap.

Use SAE-140 gear type

4-38. Tire

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

1870-1.

seals be replaced at 100,000

miles or at brake lining

replacement.

4-39. Wheel Bearings

NOTE

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

4-14