Bendix Commercial Vehicle Systems AH-1B AIR HYD INTENSIFIER 4/04 - Manual

1
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Bendix ® AH-1B ™ Air Hydraulic Intensifier
SD-1
1-1326
DESCRIPTION
The AH-1B ™ air hydraulic intensifier is a hydraulic brake,
power booster which utilizes compressed air for its power
assist. Its function is to convert air pressure to hydraulic
pressure for use in the brake system.
The AH-1B ™ intensifier consists of three major component
groups; a specially designed type 30 air actuator is bolted
to a single piston master cylinder which incorporates an
integral brake fluid reservoir. A bracket installed between the
actuator and master cylinder provides a means for mounting.
A float actuated, low fluid level, on/off electrical switch is
incorporated in the reservoir filler cap assembly. A two
“prong” connector is provided to permit the installation of a
vehicle electrical cable assembly. Switch actuation occurs
when the reservoir fluid level drops below the “minimum”
level marking on the reservoir.
RESERVOIR
DIAPHRAGM
PUSH ROD
AIR INLET
PRESSURE
PLATE
CLAMP RING
NON-PRESS
PLATE
RETURN
SPRING
BOOT
ELECTRICAL
CONNECTOR
FILLER CAP
ASSY.
INDICATOR
SWITCH
FLOAT
COMPENSATING
VALVE
HYD.
DELIVERY
PORT
RETURN
SPRING
PISTON
ACTUATOR
LIP
PISTON
SEAL
MOUNTING
BRACKET
O-RING
DRAIN HOLE
FIGURE 1
RESERVOIR
CAP
ELECTRICAL FLUID
LEVEL INDICATOR
CONNECTION
BRAKE FLUID
RESERVOIR
AIR
INLET
PORT
ACTUATOR
MOUNTING
BRACKET
MASTER
CYLINDER
BRAKE FLUID
DELIVERY PORT