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Hydro-Boost for SuperDuty Chassis Cab 92
IF THE IMAGE IS TOO SMALL, click it.

Removal
1. With the engine off, depress the brake pedal several times to discharge the accumulator.
2. Remove the master cylinder from the Hydro-Boost unit. Prop the master cylinder up and out of the way.
CAUTION: Do not apply the booster with the master cylinder removed.
3. Disconnect all three hydraulic lines from the booster.
4. Disconnect the input push rod from the brake pedal bellcrank assembly.
5. Remove the booster mounting nuts, and remove the booster from the vehicle.

WARNING: THE BOOSTER SHOULD NOT BE CARRIED BY THE ACCUMULATOR, NOR SHOULD IT EVER BE DROPPED ON THE ACCUMULATOR. THE SNAP RING ON THE ACCUMULATOR SHOULD BE CHECKED FOR PROPER SEATING BEFORE THE BOOSTER IS USED. THE ACCUMULATOR CONTAINS HIGH PRESSURE NITROGEN GAS AND CAN BE DANGEROUS IF MISHANDLED.

WARNING: IF THE ACCUMULATOR IS TO BE DISPOSED OF, IT MUST NOT BE EXPOSED TO EXCESSIVE HEAT, FIRE OR INCINERATION. BEFORE DISCARDING THE ACCUMULATOR, DRILL A 1.6MM (1/16 INCH) DIAMETER HOLE IN THE END OF THE ACCUMULATOR CAN TO RELIEVE THE GAS PRESSURE. ALWAYS WEAR SAFETY GLASSES WHEN PERFORMING THIS OPERATION.

Installation
1. Install the booster in the vehicle and tighten the mounting nuts to 22-30 N-m (16-22 ft-lb).
2. Connect the input push rod to the brake pedal bellcrank assembly or pedal to push rod linkage.
3. Position the master cylinder against the booster and tighten the mounting nuts to 22-30 N-m (16-22 ft-lb).
4. Connect the hoses to the Hydro-Boost unit. Refill the system and bleed as required.

For disassembled photos, see this post.