TM-9-2320-272-10

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; OPERATOR'S MANUAL

SEPTEMBER 2004

CHANGE 2

TM-9-2320-272-10 - Page 402 of 481

TM 9-2320-272-10

3-53

3-11. WHEELS AND TIRES (Contd)

NOTE

Chock wheels if neces-

sary.

(2) Tire Gauging and

Inflation.

(a)

Remove valve cap

(12) from valve stem (14) for

access to valve core (13).

(b)

Remove tire infla-

tion gauge and hose assembly

(19) from tool compartment.

(c)

Start engine and

engage parking brake. Make sure

air reservoir pressure is higher

than recommended tire pressure

by checking primary (20) and sec-

ondary (21) air pressure gauges

on instrument panel (22).

(d)

Remove emergency

air coupling cover (25). Install tire

inflation

hose assembly coupling

(26) on left front emergency air cou-

pling (23) to inflate front tires, and

on right rear emergency air cou-

pling for rear tires.

(e)

Align air valve han-

dle (24) at air coupling (23) with

piping to release compressed air

into tire inflation gauge and hose

assembly (19).