TM 9-2320-272-10
2-24.
OPERATION OF MEDIUM WRECKER (Contd)
(16) To rig the load:
(a)
Attach utility chain (10) to lifting
shackles (11) or pintle hook of load (12).
NOTE
M939A2 vehicles do not have front anchors.
(b)
If load (12) is very heavy or
deeply
mired,
install
snatch
block
(16)
or
combination of snatch blocks (16) to increase
winch pulling power. To rig a snatch block (16):
1.
Unwind enough cable (14) to reach the load (12) and back to rear
winch. Rig cable hook and chain (3) to rear bumperettes (4).
2.
Turn hook (15) to right. Lift up rear of snatch block (16) and open
support link (13). Insert cable (14). Lift up rear of snatch block (16) and lower and lock
support link (13) to hook (15). Return hook (15) to original position.
3.
Rig hook (15) to load (12).
(17) Release brakes, transmission, and
transfer case of vehicle being retrieved.
WARNING
Direct all personnel to stand clear
of
winch
cable
during
winch
operation. A snapped winch cable
may result in injury or death.
NOTE
If using the wreckers rear winch for self-recovery,
release parking brake and set spring brake
override.
(18) To pull load:
(a)
Position lever (7) to LOW for
heavy loads or HIGH for light loads.
(b)
Push
tensioner
switch
(9)
down to engage tensioner.
2-131