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1

®

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

Содержание AH-1B AIR HYD INTENSIFIER

Страница 1: ...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 cab...

Страница 2: ...COMPENSATING TILTVALVESEALED PISTON APPLIED POSITION RETURN SPRING COMPRESSED AIRAPPLIED POSITION SPRINGBRAKE ACTUATOR FIGURE 2 TYPICALAH 1B AIR HYDRAULIC INTENSIFIER SYSTEM BRAKE VALVE PUSH PULLVALVE...

Страница 3: ...o return to the brakes released position The actuator lip of the piston contacts the stem of the compensating valve and unseats the valve as the piston returns When the compensating valve opens the pa...

Страница 4: ...ndation brake Check for fluid leakage at the drain holes of the actuator non pressure plate Repair or replace components as necessary 3 With the reservoir filter cap removed apply and fully release th...

Страница 5: ...ivalent size type and strength as the original equipment 10 Components with stripped threads or damaged parts should be replaced rather than repaired Do not attempt repairs requiring machining or weld...

Страница 6: ...hicle manufacturer 6 Bleed the hydraulic brakes following the vehicle manufacturer s recommended procedure 7 Refill the master cylinder fluid reservoir to replace fluid lost during the bleeding proced...

Страница 7: ...tem should be flushed If the filter cannot be cleaned it may be removed after the system is flushed 3 Inspect the condition of the piston Measure the major diameter around the top edge of the o ring g...

Страница 8: ...the master cylinder Be sure reservoir is oriented so that holes for the Phillips screws line up with the holes on the master cylinder Install the two Phillips screws and lockwashers and tighten snugl...

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