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 219 of 481

(c)

Attach utility chain (4) to lift-

ing shackles (5) or pintle hook of load. Attach

snatch block (3) to utility chain (4).

NOTE

• M936A2 wreckers do not have

front anchors for field chocks.

• M936 wreckers are equipped with

field chocks for heavy recovery

operations. Refer to paragraph

2-24 for field chock installation.

(4)

Disengage brakes, transmission,

and transfer case of vehicle being retrieved.

d.

Pulling Load.

NOTE

This operation requires two

crewmembers.

TM 9-2320-272-10

2-118

c.

Rigging the Load.

(1)

Attach utility chain (4) to lifting shackles (5) or pintle hook of load.

(2)

If load is very heavy or deeply mired, install a snatch block (3) to

increase winch pulling power.

(3)

To rig a snatch block (3):

(a)

Unwind enough cable (7) to reach the load and back to the front

winch. Attach cable chain hook (2) to lifting shackle (1).

(b)

Turn snatch block hook (8) to the right. Lift up rear of snatch

block (3) and open support link (6). Insert cable (7). Lift up rear of snatch block (3)

to lower and lock support link (6) to snatch block hook (8). Return hook (8) to origi-

nal position.

2-22. OPERATION OF FRONT WINCH (Contd)