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 228 of 481

(b)

Insert chocks (4) in left

and right brackets (2) below the front

bumper (5). Insert pin (1) through brack-

et (2) and yoke (3) to secure chock (4) in

place.

(c)

Dig two 12 in. (30 cm)

holes at spade end (6) of chocks (7).

Insert spade ends (6) in holes.

c.

Rear Winch Operation.

.

WARNING

.

Do not wind out winch cable when

attached to load. Load must be

wound in only. Failure to do this

may result in injury or death.

(1)

Position rear of wrecker in

direct line with load to be winched if

possible.

TM 9-2320-272-10

2-127

a.

General.

The medium wrecker (M936/A1/A2) has a hydraulic crane and front

and rear winches. The vehicle’s winch and towing capacities are adequate for recov-

ering all wheeled vehicles. The medium wrecker can also remove and replace

engines, power packs, and gun tubes.

2-24. OPERATION OF MEDIUM WRECKER

NOTE

• M936A2 vehicles do not have

a level wind or front anchors

for field chocks.

• All winching and recovery

operations will be performed

IAW FM 20-22.

b.

Front Winch Operation.

(1)

Refer to paragraph

2-22 for operating instructions.

(2)

Install field chocks (4)

for heavy recovery operations or

operations on slippery terrain. To

install chocks (4):

(a)

Remove chocks (4)

from storage area at left rear of

wrecker body.