Express 1/2 Ton Van V8-305 5.0L VIN M SFI (1998)
Hydraulic Brake Booster: Service and Repair
Hydraulic Brake Booster Overhaul (Check Valve)
REMOVAL PROCEDURE
CAUTION:
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The accumulator contains compressed gas. Always use the proper tools and follow the recommended procedures or personal injury
may result. Do not apply heat to accumulator. Do not attempt to repair an inoperative accumulator. always replace an inoperative
accumulator with a new one. Dispose of an inoperative accumulator by drilling a 1/16 inch diameter hole through the end of the
accumulator can, opposite the O-ring.
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Push rod removal is not recommended. Improper staking of the push rod to the Hydroboost reaction piston can result in a loss of brakes. If the
rod or seals require service, the entire unit must be replaced.
1. Remove the bolts fastening the booster cover to the booster housing.
2. Separate the booster cover from the booster housing.
3. Remove the check valve. Use a locally fabricated wire hook with dimensions as shown.
INSTALLATION PROCEDURE
