TM 9-2350-238-10
OPERATION OF AUXILIARY EQUIPMENT
Make sure you know proper procedures and
precautions before attempting to operate aux-
iliary equipment on M578 recovery vehicle.
The following pages provide operating instruc-
tions for machine gun mount, caliber .50
machine gun, fixed fire extinguisher, portable
fire extinguisher, gas-particulate filter unit,
and communications equipment.
CALIBER .50 MACHINE GUN MOUNT
NOMENCLATURE
1
2
3
4
5
6
7
AMMUNITION TRAY. Tray holds the am-
munition box from which ammunition is
fed into machine gun. The tray has a
hinged, spring-loaded arm that holds am-
munition in box when machine gun is
elevated.
EQUILIBRATOR ADJUSTING SCREW.
Screw provides adjustment for
equilibrator spring and cap that holds
machine gun in a horizontal position.
CRADLE. Cradle supports machine gun in
mount.
FRONT LOCKING PIN. Pin secures
machine gun to cradle.
TRAVEL LOCK PIN. Pin secures cradle in
a horizontal position.
PINTLE. Pintle secures mount on mount
support of the rigger/gunner’s cupola.
REAR LOCKING PIN. Pin secures
machine gun to cradle.
OPERATING CALIBER .50 MA CHINE GUN
MOUNT
1 Install mount on vehicle by loosening gun
lock clamp (1) and inserting mount pintle
(2) into mount support (3). Tighten gun
lock clamp (1).
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