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 212 of 462
TM 9-2330-238-14
Section IX. SPRINGS AND SUSPENSION
MAINTENANCE
Page
Paragraph Title
Number
Springs Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-114
Torque Rod Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-118
4-56. SPRINGS REPLACEMENT.
This Task Covers:
a.
Removal
b.
installation
Initial Setup:
Equipment Conditions:
Materiais/Parts:
●
Semitrailer
uncoupled
from
towing
vehicle
●
Four lockwashers
(para 2-1 1).
Tools/TestEquipment:
Personnel Required:
Two
ŽGenerai mechanic’s tool kit
●
Hydraulic jacks (as required)
●
Socket set, ¾ in. drive
●
Torque wrench
●
Two jackstands
a. REMOVAL
1.
Raise rear of semitrailer with jacks until wheels just clear the ground. Support semitrailer with jackstands.
2.
Remove wheels from side of semitrailer from which springs are to be removed (para 4-49).
3.
Position jack under axle and bracket assembly (4). Raise jack until weight of main spring assembly (3) and
helper spring (2) is off front and rear axle spring brackets (5 and 1).
4.
Remove wheel chock (7) from wheel chock support (9).
5.
Remove four nuts (12), lockwashers (1 3), two U-boits (14) and upper spring seat (8) from lower spring seat (15)
and main and helper spring assemblies (3 and 2). Discard Iockwashers.
6.
Remove upper spring seat (8), retaining chain, and wheel chock (7).
4-114
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