Brake Booster - BENDIX Single Diaphragm: Reassembly

Install vacuum check valve grommet with beveled edge on inside. Dip check valve in denatured alcohol and install. Install holding fixture (J-22805) on front housing.
Install new rear housing seal in center hole, using tool (J-22677) to seat seal in recess (tool bottoms against housing when seal is in place).
Lubricate outer diameter of diaphragm plate and extension, bearing surfaces of air valve, and outer edge of valve poppet. Install valve and rod into diaphragm plate extension. Depress push rod slightly and install air lock valve (lock must index and retain air valve).
Install rolling diaphragm in diaphragm plate hub groove. Lubricate reaction disc with silicone lubricant and install disc (use master cylinder push rod to seat disc in diaphragm plate bore).
NOTE: If disc is not seated, push rod height will be gauged incorrectly during adjustment.

Fig 1: Exploded View of Bendix Single Diaphragm Assembly
Lubricate inside of bearing seal and diaphragm bead contact surface of rear shell. Install diaphragm plate assembly in rear housing. Place air filter element over push rod and into diaphragm plate extension.
Install filter retainer. With holding fixture in place, position spanner wrench (J-9504) over studs on rear housing and position front and rear housings together. Press down on wrench and rotate rear housing counterclockwise to lock housings.
Align scribe marks. Re-bend tabs on rear housings. If tabs are cracked or broken, housing must be replaced. Remove wrench. Install air silencers over push rod end. Install push rod boot and boot retainer.
On clevis type push rods, install lock nut and push rod clevis. Lightly lubricate piston rod (except rounded end). Guide rod into center bore until fully seated against section disc. Press front housing seal into housing until seal is bottomed in recess of housing.