B3000 DS Regular Cab 2WD V6-3.0L OHV (2002)
Brake Master Cylinder: Service and Repair
Disassembly and Reassembly
1. Remove the master cylinder.
2. Clean the outside of the brake master cylinder.
3. Remove the brake master cylinder filler cap and drain the remaining brake fluid.
4. On cruise control equipped vehicles, remove the brake pressure switch.
5. Remove the brake master cylinder reservoir.
6. Depress the primary piston, remove the snap ring and remove and discard the primary piston assembly.
7. Remove the brake pressure control valve.
8. Remove the secondary piston assembly stop bolt.
9. Plug the rear brake outlet port and, if necessary, plug the brake pressure switch port.
10. Apply compressed air into the front brake outlet port, and remove the secondary piston assembly and discard.
Note: If the brake master cylinder bore is damaged, the brake master cylinder must be replaced.
11. Use isopropyl alcohol to clean the brake master cylinder bore; inspect for damage.
12. Use appropriate brake fluid to lubricate the new piston assembly seals.
