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 54 of 462
TM
9-2330-238-14
Table 2-1.
Operator/Crew
Preventive
Maintenance
Checks
and Services
(PMCS)
(Con’t).
INTERVAL
ITEM
TO BE INSPECTED
ITEM
PROCEDURE:
Check
for and have repaired,
filled,
or
EQUIPMENT
IS NOT
READY/
NO.
B
D
A
adjusted
as needed.
AVAILABLE
IF
5
AIR FILTER
●
Remove
pipe plug
and drain filters.
Replace
plug.
6
AIR RESERVOIR
●
a.
Open
draincock
and drain condensation.
Close
draincock.
●
b.
Check to see that air connections
at air reservoir
are secure.
7
SPRINGS
●
●
Inspect
springs
for abnormal
sag, broken
or shifted
leaves,
loose
or
missing
rebound
clips,
pins,
U-bolts,
safety
nuts, or bolts.
8
HEATER
FUEL SYSTEM
●
a.
Check
water
fuel level.
●
b.
Inspect
for
leaks
in fuel
line
and
around
fuel
pump.
9
GENERAL
Operations
●
Be alert for any unusual
noises
or abnormal
condi-
tions that might
indicate
a shifting
of the load or de-
fective performance
of the semitrailer.
10
BRAKES
●
a.
Apply
brakes
several
times,
Check for unusual
conditions.
Note
any
unsatisfactory
perform-
ance
(grabbing,
pulling,
or slow
brakes).
●
●
b.
At
halts
and
after
operations,
carefully
feel
brakedrums
and
hubs
for excessive
heat.
An
overheated
brakedrum
or
hub
indicates
an
improperly
adjusted,
defective,
or
dry
wheel
bearing
or a dragging
brake.
11
TRACKING
●
Pull
semitrailer
straight
ahead
and
check
for
any
side
pull, wander,
or shimmy.
12
OPERATING
DEFICIENCIES
●
a.
Check
counterbalance
assembly
for wear
dur-
ing each
operation.
●
b.
Replace
wire
rope when
three
or more
strands
are broken.
2-8
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