TM 5-3805-262-10
1-16. BRAKES
PARKING BRAKE VALVE. Controls flow of air to actuator. Pushing knob in applies air
pressure to actuator in turn releasing parking brake. Pulling knob out releases air
pressure applied to actuator. Large spring in actuator then moves piston causing
linkage and lever in parking brake to force brake shoes against brake drum.
ACTUATOR. Located left side of loader. Includes large spring and piston. When air
pressure applied by parking brake valve, it pushes against piston and compresses
spring in turn releasing parking brake. When air pressure released, large spring
forces piston to move and apply parking brake.
PARKING BRAKE. Mounted on transmission output shaft. Drum type parking brake pre-
vents axles and wheels from rotating when applied.
BRAKE TREADLE VALVE. Depressing treadle valve applies air pressure to brake actua-
tors. This in turn applies hydraulic pressure to brake calipers mounted on each
wheel end and applying brake pads to disks mounted on wheel ends to stop loader.
Brake actuators consist of an air chamber and hydraulic master cylinder. Also turns
on stop or black out stop lights as determined by position of vehicle lights switch.
Brake system is air over hydraulic.
SERVICE BRAKES. Disk brakes mounted on each wheel end.
AIR RESERVOIR. Mounted at right side of loader. Air from air compressor routed to
and stored in air reservoir until required by air system components.
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