TM-9-2320-361-24-1
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2
AUGUST 2006
TM-9-2320-361-24-1 - Page 78 of 1176
TM 9-2320-361-24-1
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THEORY OF OPERATION (Contd)
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PARKING BRAKE SYSTEM
Parking Brake System Operation:
The parking brake system consists of a brake drum and an inner and
outer brake shoe assembly, mounted on the transfer case. It is manually controlled by a cable and control
lever mounted on the cab floor. The major components of the parking brake system are as follows:
PARKING BRAKE CONTROL LEVER
– Applies parking brake when pulled to raised position. When
lowered, parking brake is released.
ADJUSTING KNOB
– Permits operator to make minor tension adjustment in parking brake cable.
PARKING BRAKE CABLE
– Links parking brake lever to actuating lever.
BRAKEDRUM
– Provides surface for brakeshoes to press against when parking brake is applied.
ACTUATING LEVER
– Forces inner and outer brakeshoes against brakedrum when parking brake
control lever is raised.
PARKING BRAKE ADJUSTING SCREW
– Used to ensure full contact of brakeshoes with
brakedrum.
BRAKESHOES
– Both apply friction to brakedrum when parking brake control lever is raised.
ECCENTRIC PIN
– Equalizes distance between brakeshoes and brakedrum.
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