TM-9-2320-273-10

TRUCK, TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; OPERATOR’S MANUAL

DECEMBER 2012

TM-9-2320-273-10 - Page 265 of 452

OPERATOR MAINTENANCE

OPERATION UNDER UNUSUAL CONDITIONS

TOWING VEHICLE

INITIAL SETUP:

Tools and Special Tools

Medium duty tow bar (WP 0038)

Personnel Required

Two

References

WP 0010

FM 20-22

FM 21-305

CAUTION

If the M915 or M915A1 must be towed with rear wheels on

the ground, the transmission-to-rear axle prop shaft must be

removed. Failure to comply may result in serious damage to

automatic transmission and rear tandem axle differentials.

If the M916 through M920 vehicles must be towed with

front wheels on the ground, the transmission-to-front axle

prop shaft must be removed. Failure to comply may result in

serious damage to automatic transmission and front axle

differential.

NOTE

For cross-country towing, all tires should be on the ground.

GENERAL

Refer to FM 21-305 for general guidelines on vehicle recovery and use of warning kits

and signals. FM 21-305, FM 20-22, and the following procedures provide instructions

for towing.

PREPARATION FOR TOWING

M915 AND M915A1

1. If possible, tow with rear wheels suspended. This eliminates the need for removal

of prop shaft or axle shafts.

2. If vehicle must be towed with rear wheels on the ground, set inter-axle differential

control to the UNLOCK position (WP 0010) and notify your supervisor to remove

transmission and forward-rear axle prop shaft at universal joints. After removal of

prop shaft, secure prop shaft to truck undercarriage.

3. If prop shaft cannot be removed, notify your supervisor to remove all four axle

shafts from two rear axle assemblies. Secure axle shafts to vehicle to prevent

damage.

TM 9-2320-273-10

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