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Disassembly (SC 430)

  1. Remove master cylinder. See MASTER CYLINDER  under REMOVAL & INSTALLATION.
  2. Remove brake booster gasket from brake master cylinder.
  3. Using special tool (09630-00014), (09631-00142), (09950-60010), (09951-00180), (09951-00190), clamp brake master cylinder in vise. See Figure.
  4. Loosen lock nut, then remove push rod clevis and lock nut. See Figure.
  5. Remove master cylinder boot.
  6. Remove screws and pull out master cylinder reservoir assembly.
  7. Remove brake master cylinder reservoir filler cap assembly.
  8. Remove reservoir grommets from brake cylinder assembly.
  9. Pressing brake master cylinder plug in with a screwdriver, use a pin or equivalent to push snap ring from hole in master cylinder body. Remove it with another screwdriver.
  10. Remove piston, pulling it straight out, not an angle.
  11. Using hexagon wrench, remove bolt and brake actuator No. 1 bracket.
  12. Disconnect level warning switch connector from brake actuator No. 3 bracket.
  13. Using hexagon wrench, remove bolt and brake actuator No. 3 bracket.
  14. Using special tool (09023-00100), remove brake actuator No. 1 tube.
  15. Slide 2 clips and remove brake actuator hose and clips.
  16. Remove union bolt, gaskets and union No. 2.
  17. Remove screws, disconnect clamp and remove brake control wire.
  18. Using hexagon wrench, remove bolts and brake booster pump bracket No 3.
  19. Hold accumulator pump assembly. Using hexagon wrench, remove bolt and brake booster pump bracket.
  20. Remove brake booster with accumulator pump assembly.
  21. Remove bolt and brake booster pump bracket. Remove washers, bushes, collars and shaft.
  22. Using hexagon wrench, remove bolts and brake booster pump No. 2 bracket.
  23. Place booster pump with a cloth under it in vise.
  24. Using special tool (09318-12010), remove accumulator. Remove brake booster accumulator pipe, compression spring and O-ring. Ensure no foreign matter enters pump.
    25. CAUTION: Never cut at a stretch. When outer body of accumulator is cut, gas discharges. Be careful of flying debris.
  25. To dispose of accumulator, drain high pressure gas from accumulator. Place accumulator in a vise. Cover accumulator and a saw with a cloth. Cut accumulator body slowly.
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