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 64 of 452
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - CONTINUED
M915A1
TRAILER RAMPS - There are two steel ramps mounted on the frame rails adjacent to
the fifth wheel. The trailer ramps help with alignment during coupling, and prevent the
trailer from contacting the vehicle frame or fifth wheel too low during coupling.
CAB CONTROLLED FIFTH WHEEL - A fifth wheel is mounted on the vehicle frame
over the tandem rear axles. Kingpin lock is air-actuated by a control lever in the cab.
SPARE TIRE HOIST AND RACK ASSEMBLY - The spare tire rack is mounted to
the left frame rail next to the spare tire carrier. The rack assembly supports the hoist
for lifting the spare tire on and off the carrier.
CAB SLIDING REAR WINDOW AND STONE SHIELD - There is a sliding window
protected by a steel grid located on the back panel of the vehicle cab.
EXHAUST STACK AND MUFFLER - The exhaust system stack and muffler, located
and supported by the right rear corner of the cab, routes engine exhaust above the cab.
FRONT WHEEL MUD FLAP - There is a mud flap mounted on each front fender.
BATTERY BOX AND NATO SLAVE RECEPTACLE - The battery box is located on
the right frame rail below the cab passenger door. The battery box contains four
batteries, a NATO slave receptacle, and two steps for entering the cab.
SPARE TIRE CARRIER - The spare tire carrier, located directly behind the cab on the
vehicle frame, is a steel frame structure that holds the spare wheel and tire assembly.
AIR HOSE TENDER - The air hose tender is located in front of the spare tire carrier
and supports a coiled air hose for connecting to the trailer.
REAR WHEEL MUD FLAPS - There is a mud flap mounted behind each wheel on
the rear-rear axle.
BLACKOUT TAIL AND STOPLAMPS - There is a tail lamp located below the rear
towing eye on the left and right frame rail that contains the bulbs for blackout tail and
stoplamps.
SERVICE TAIL AND STOPLAMPS - There is a tail lamp mounted below the frame
rear crossmember at each side of the towing pintle. The service tail lamp provides tail,
turn signal, and stop lighting. A separate single-filament bulb functions as the backup
lamp.
REAR AIR LINE COUPLINGS - There are two air line quick-disconnect couplings
located at the rear of the vehicle below the towing pintle.
TOWING PINTLE - The towing pintle, located at the center of the frame rear
crossmember, is provided for interface with trailers requiring a pintle.
REAR TOWING EYES AND SHACKLES - There is a towing eye mounted on the
side of each frame rail adjacent to the towing pintle.
TM 9-2320-273-10
0002
0002-30
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