TM-9-2320-279-10-1

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

OPERATOR’S MANUAL VOLUME 1 OF 2

DECEMBER 1998

CHANGE 5

TM-9-2320-279-10-1 - Page 223 of 773

TM 9-2320-279-10-1

Table 2-7. Preventive Maintenance Checks and Services Auxiliary Equipment

Item Interval

Location

No .

Ite m

Check/

Service

Crewmember

Procedure

162

Monthly

Gas Par-

ticulate

Filter Unit

NOTE

Gas particulate filter unit must be

in operation to perform the fol-

lowing

checks (paragraph

2-35c).

a.

Check heater for unusual

loud noise or improper opera-

tion.

b. Disconnect two air duct

breakaway

sockets from

mount and feel for airflow.

c. Turn heater control knob

clockwise to make sure indi-

cator light comes on.

d. Hoses. Check hoses for

cuts, tears and other obvious

damage.

e.

Hose Clamps. Make sure

hose clamps are secure.

Not Fully Mission

Capable If:

b. No airflow or not

enough

airflow.

2-142.18

Change 5