F 350 2WD Super Duty V10-6.8L (2009)
Brake Master Cylinder: Testing and Inspection
Accumulator - Hydro-Boost(R)
Component Tests
Accumulator - Hydro-Boost(R)
1. Start the engine and turn the steering wheel to the left and right stops 1 time.
2. Stop the engine.
3. Apply the brakes. The accumulator in the Hydro-Boost(R) power brake booster should retain enough pressure for at least 2 power assisted brake
operations.
-
If no power assist is felt, install a new Hydro-Boost(R) power brake booster.
-
If power assist is felt, the accumulator is operating correctly at this time.
