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 343 of 462
TM
9-2330-238-14
5-14.
LANDING
GEAR ACTUATING
LEG ASSEMBLY
REPAIR
(EARLY MODEL)
(Con’t).
WARNING
1.
2.
3.
4.
5.
6.
7.
8.
Dry cleaning
solvent,
P-D-680,
is toxic and flammable.
Always wear protective
goggles
and gloves,
and use only in a well-ventilated
area.
Avoid contact
with skin, eyes,
and
clothes,
and DO NOT breathe
vapors.
DO NOT use near open frame or excessive
heat.
The
solvent’s
flash
point
is 100°F-138°F
(38°C-59°C).
if you
become
dizzy
while
using cleaning
solvent,
immediately
get fresh air and medical
help. If solvent
contacts
eyes,
immediately
wash your eyes
and get medical
aid.
Clean
all parts with dry cleaning
solvent
and dry thoroughly.
Inspect
all parts for wear, distortion,
or cracks.
Check
threads
of elevating
nut for damage
or wear,
Check
actuator
screw
for straightness
by rolling
on flat surface.
Inspect
tapered
cone
and
rollers
and
thrust
roller
bearing
for
pits,
corrosion,
or wear
and
replace
if
unserviceable
(refer to TM 9-214 for care and maintenance
of bearings).
Inspect
bevel
gears for cracked,
chipped,
or worn
gear teeth.
Inspect
drive
shaft for cracks,
bends,
or breaks.
Inspect
all mounting
hardware
for cracks,
bends,
or stripped
threads.
Replace
all defective
parts as necessary.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Install
new spring
pin (30) in inner leg (31).
Install
new spring
pin (29) and new lubrication
fitting
(28) in internally
relieved
bolt
(27).
Position latch (25) over hook
of inner leg (31) and install
spring
(26), internally
relieved
bolt (27), and nut (24).
Install
capscrew
(1), two new lubrication
fittings
(32), and two sleeve
bearings
(4) in outer
leg (3).
Position
elevating
nut (19) in open end of inner leg (31) and install
two shoulder
pins
(20).
Install
headless
grooved
pin (23) in actuator
screw
(22).
Install
actuator
screw
(22) in inner leg (31).
Install thrust roller bearing
(21) on actuator
screw
(22) and install
inner leg (31) and actuator
screw
in bottom
opening
of outer
leg assembly
(3).
Install tapered
roller cup (7) and tapered
cone
and rollers
(8) in outer leg assembly
(3).
Install
machine
key (16) and bevel
gear (9) on actuator
screw
(22) and secure
with new self-locking
nut (11).
Tighten
self-locking
nut (11) just enough
to allow
actuator
screw
(22) to turn freely,
but with a minimum
of end
play.
5-41
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