TM 9-2320-211-10-1
4-9, OPERATION OF
TRACTOR TRUCKS.
a. General. The M52A1 tractor truck can tow a semitrailer with a maximum
travel load of 30,000 pounds for cross-country operations and 55,000 pounds for high-
way travel.
b. Coupling the Semitrailer,
Wheel chocks
TOOLS :
Adjustable wrench
PERSONNEL:
TW O
FRAME 1
Make sure wheel chocks (1) are behind semitrailer rear wheels.
1.
Start engine.
2.
Place tractor truck in front of and almost touching the semitrailer with center
3.
of fifth wheel (2) in line with semitrailer king pin (3) .
Push clutch pedal (4) all the way down.
4.
Place FRONT TRANSMISSION gearshift lever (5) in N position.
5.
Let clutch pedal (4) up.
6.
7. Pull handbrake lever (6) to up (brake on) position.
GO TO FRAME 2