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 231 of 481

TM 9-2320-272-10

2-130

(12)

Release level wind (1) by pulling out lock

knob (2), rotating it 90 degrees, and releasing knob (2).

(13)

Turn on floodlights (5) for night operation if

tactical situation permits.

NOTE

Torque control lever must be in HIGH or LOW

before directional control lever can be operated.

(14)

Remove travel pin (8) and pull

torque control lever (7) outward to HIGH.

.

WARNING

.

Wear hand protection when handling winch

cable. Do not handle cable with bare hands.

Broken wires may result in injury.

NOTE

Cable and snatch block ratings on level surface

are 14,500 lb (6,583 kg) for 3/4 in. (19 mm) cable;

22,500 lb (10,215 kg) for single sheave snatch

block; 27,500 lb (12,485 kg) for double-sheave

snatch block.

(15)

To unwind winch cable:

(a)

Release cable tensioner switch (9) if

engaged.

(b)

Remove travel pin (8) and pull direc-

tional control lever (6) outward to UNWIND until

winch cable hook and

chain (3) are loosened from bumperettes (4).

(c)

Direct crewmember to free cable hook

and chain (3) from rear bumperettes (4).

(d)

With crewmember maintaining manu-

al tension on cable, pull directional control lever (6)

outward to UNWIND.

(e)

After required length of

cable (14) has been unwound, return directional con-

trol lever (6) to NEUTRAL.

2-24. OPERATION OF MEDIUM WRECKER (Contd)