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 399 of 481

(n)

Remove hydraulic jack (9), jack handle (7), wheel stud nut wrench

(2), and wrench handle (1) from tool compartment.

WARNING

Do not work under vehicle supported by jack only. Jack may slip

causing vehicle to fall. Failure to do so will result in injury or

death.

(o)

Install wrench handle (1) through hole in side of small end of wheel

stud nut wrench (2) and use wheel stud nut wrench (2) to loosen ten wheel stud

nuts (5), but do not remove.

(p)

Turn jack screw (10) of jack (9) out approximately 3 in. (7.6 cm).

(q)

Turn valve (8) at base of jack (9) by turning clockwise with slotted

end of jack handle (7) until closed securely.

(o)

Position jack (9) under axle housing (11) near tire (4) that is dam-

aged. Insert jack handle (7) into jack (9), and move jack handle (7) up and down

until tire (4) is off the ground.

(p)

Remove ten wheel stud nuts (5) from wheel studs (6) and tire (4) from

hub (3).

TM 9-2320-272-10

3-50

3-11. WHEELS AND TIRES (Contd)

NOTE

• This procedure requires two person-

nel.

• Place a block under jack if used on

soft terrain.

• Use jack stands if available.

• Expansible van bodies must be

retracted on M934A2 models before

jacking vehicle up.

• Wheel stud nuts on left side have

left-hand threads. Those on right side

have right-hand threads. Stud and

nuts are marked L and R according-

ly.