TM-9-2330-238-14
CHASSIS, SEMITRAILER: 6-TON, 4-WHEEL M295A1; SEMITRAILER, VAN: EXPANSIBLE, 6-TON, 4-WHEEL M313; SEMITRAILER, VAN: SHOP, FOLDING SIDES, 6-TON, 4-WHEEL M447 AND M447C; SEMITRAILER, VAN: REPAIR PARTS, SHOP EQUIPMENT, 6-TON, 4-WHEEL M749; SEMITRAILER, VAN: REPAIR PARTS STORAGE, 6-TON, 4-WHEEL M750
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 1992
TM-9-2330-238-14 - Page 58 of 462
TM
9-2330-238-14
2-12.
OPERATING
LANDING
GEAR
(Con’t).
b.
Late
Model.
NOTE
Late model
semitrailers
have
a crankhandle
for each
landing
gear
leg.
(1)
Each landing
gear leg (6 or 7) contains
a two-speed
gearbox
(1). Push crankhandle
(3) all the way
into gearbox
to provide
a slow-speed
action.
Push crankhandle
part way into gearbox
to provide
a high-speed
action.
(2)
Rotate
crankhandle
(3) on roadside
of
semitrailer
clockwise
to
lower
or
counterclockwise
to
raise roadside
landing
gear
leg (6).
(3)
Rotate
crankhandle
(3) on curbside
of
semitrailer
counterclockwise
to
lower
or clockwise
to
raise curbside
landing
gear
leg (7).
(4)
Continue
turning crankhandles
(3) until
landing
gear
legs
(6 and 7) support
front of semitrailer.
2-13.
EXPANDING
AND
RETRACTING
VAN BODY (M313).
NOTE
Expanding
and retracting
the M313
van body is very complex
and requires
a thorough
understanding
of the location
and function
of controls
and locking
mechanisms.
a.
Expanding
Van Body
(M313).
(1)
Level van body
(para 2-17).
Release
four corner
locks
(4) from
clips
(3).
(2)
Using lock wrench
on four side locks (9)
and two side locks on each sidewall
(8) of van body, release
four side
locks
¼ turn counterclockwise.
(3)
Using ratchet wrench
and hexagon
socket
on two ratchets,
turn each retractable
beam drive shaft (2)
until side walls
(8) are expanded
to their outward
limits.
(4)
Open four end panel doors
(1). Release
hook holders
(6) from clips (5) and hook holders
to bottom
of
end panel
doors
to keep
end panel
doors
open
at 1200.
TA701916
2-12
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