Table 2-1. Preventive Maintenance Checks and Services for Models M915-M920 (Cont)

TM 9-2320-273-10

Table 2-1. Preventive Maintenance Checks and Services for Models M915-M920

Location

Item

Interval

Not Fully Mission

Crewmember

Item to

No.

Procedure

Capable If:

Check/

Service

DRIVER

g. Reads less than

Before

Controls

g. Check engine oil pressure

30 psi at 2100 RPM.

gage (normal range at 2100

and ln-

struments RPM is 40 to 75 psi. Range at

idle is 5-20 psi).

(Continued)

h. Transmission or

h. Check transmission and ra-

ratio selector inop-

tio selector. Shift in all ranges

erative or binding.

observing unusual stiffness,

abnormal operation or binding.

i. Check pusher axle controls

i. Gage or pusher

and gages (M917, M919 and

axle are inoperative,

M920).

j. Engine retarder is

j. Check engine retarder for

inoperable.

braking ability.

k. Steering binds or

k. Check steering response.

is unresponsive,

l. Pipe, clamp or

l. Listen for leakage in exhaust

hardware damaged

system.

or missing.

m. Tachometer indi-

m. Check tachograph rpm

cates less than 580

needle for proper response to

rpm or more than 650

throttle. Check idle speed 580

rpm at idle.

to 650 rpm.

n. Parking brake is

n. Check parking brake; pull

inoperative.

out to apply, push in to re-

lease. With parking brake ap-

plied place transmission in

gear. Vehicle should not move.

o. Brakes do not

o. Move vehicle 10 feet and

stop vehicle.

check service brakes for pull-

ing, grabbing or other abnor-

mal operation.

Change 5 2-39