TM-9-2330-227-14-P
SEMITRAILER, VAN: SHOP, 6-TON, SINGLE AXLE, M146
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
JUNE 1985
TM-9-2330-227-14-P - Page 44 of 576
TM 9-2330-227-14&P
Section III. OPERATION UNDER USUAL CONDITIONS
Page
After Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-25
Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-23
PREPARATION FOR USE
Page
2-18
Perform the operator/crew preventive maintenance checks and services in the “Before” column before
doing the procedures below.
COUPLING TRUCK TRACTOR AND SEMITRAILER
1.
2.
3.
4.
WARNIN G
All persons not involved in coupling operation must stand clear of truck tractor and
semitrailer to prevent possible injury.
Line up truck tractor with semitrailer.
Review and perform truck tractor operating procedures to prepare truck tractor for coupling.
Slowly back truck tractor into position. Be sure kingpin (1) is in line with fifth wheel
jaws (2).
Before fifth wheel approach ramps (3) make contact with bolster plate (4), do the following:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
Check that bolster plate (4) is above approach ramps (3).
Adjust kingpin (1) height as needed by raising landing gear (5) (page 2-20), or lowering
landing gear (5) (page 2-25).
Make sure fifth wheel jaws (2) are open.
Make sure chock blocks (6) are in place (page 2-25).
Remove dummy couplings (7) from semitrailer couplings (8) and (9), and stow on
hooks (10).
Connect service air line (11) to right semitrailer couplings (8).
Connect emergency air line (12) to left semitrailer couplings (9).
Check air lines (11) and (12) and electrical cable (13) to be sure they are
supported and will not catch or chafe.
Check air reservoir to make sure draincock is closed (page 2-13).
Turn on truck tractor air supply; see Operator’s Manual for towing vehicle.
Apply semitrailer brakes from towing vehicle; see Operator’s Manual for towing vehicle.
5. Slowly back truck tractor until fifth wheel jaws (2) engage kingpin (1).
2-18
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