Chapter 3. MAINTENANCE INSTRUCTIONS

TM 9-2320-273-10

CHAPTER 3

MAINTENANCE INSTRUCTIONS

Section I LUBRICATION INSTRUCTIONS

For complete information on your responsibilities in lubricating the M915, M916, M920

Truck Tractors, and Chassis for the M917, M918, M919, REFER TO THE LUBRICA-

TION INSTRUCTIONS IN LO 9-2320-273-12. The lube order will show you the lubrica-

tion points and will tell you the proper intervals for lubricating each point.

Section II TROUBLESHOOTING PROCEDURES

Troubleshooting

Procedure

Page

Air pressure too low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Low pressure warning light comes on . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Trailer brakes will not apply . . . . . . . . . . . . . . . . . . . . . . . .3-5

Trailer brakes will not release . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

Will not disengage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

One or more lighting systems not working . . . . . . . . . . . . . . . . . . . . 3-6

Fails to crank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Fails to start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Misfires or runs roughly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-7

Will not idle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3.7

3-1