Inspection & Cleaning
- Clean all parts, except pressure switch and pump, in clean, denatured alcohol. DO NOT immerse pressure switch or pump in alcohol. Exterior surfaces may be wiped with a clean cloth lightly moistened with denatured alcohol if necessary. Dry with filtered compressed air.
- Inspect all metal parts for cracks, distortion or other evidence of structural damage. Inspect primary sealing surfaces on power piston for scoring, deep scratches or other damage that would cause leakage. If noted, replace power piston assembly.
- Inspect power piston and master cylinder bores in Powermaster body for scoring or corrosion. If noted, replace power brake assembly. No abrasives should be used. Use clean, fresh brake fluid to lubricate parts prior to assembly.
- Lubricate new rubber "O" rings, grommets and seals with clean brake fluid just prior to assembly. Lubricate master cylinder and power piston bores in Powermaster body before installing parts.