Pressure Bleeding

Pressure Bleeding






Tools Required:
J 29532 Diaphragm Type Brake Bleeder
J 29567 Brake Bleeder Adapter
J 21472 Brake Bleeder Wrench
J 35856 Proportioning Valve Depressor

NOTICE: See "Notice". Refer to Service Precautions

NOTICE: Pressure bleeding equipment must be the diaphragm type and must have a rubber diaphragm between the air supply and the brake fluid to prevent air, moisture, oil and other contaminants from entering the hydraulic system.

1. Install J 29567 to the master cylinder (5).
2. Charge J 29532 to 140-172 kPa (20-25 psi).
3. Connect line to adapter.

- Open line valve and depress bleed-off valve on top of adapter until a few drops of fluid appear.

4. Raise and suitably support the vehicle.
5. A manual override is required with rear drum brakes to permit fluid flow to the front wheels when pressure bleeding. Using J 35856 to hold the valve stem of combination valve open during pressure bleeding.
6. Bleed the brakes in the following sequences:
- Right rear.
- Left rear.
- Right front.
- Right left.
7. Place a proper size box end wrench or J 21472 over the bleeder valve.
8. Attach a clear tube over the valve and allow tube to hang submerged in a clear container partially filled with brake fluid.
9. Open the bleeder valve and allow fluid to flow until no air is seen in the fluid.
10. Close the bleeder valve.
- Be sure it seals.

Tighten
- Caliper bleeder valve to 13 Nm (115 lb. in.).
- Wheel cylinder bleeder valve to 7 Nm (62 lb. in.).
11. Repeat steps 7 through 10 until all calipers and wheel cylinders have been bled.
12. Remove J 35856 from combination valve.
13. Lower vehicle.
14. Check the brake pedal for "sponginess" and the red "BRAKE" warning lamp for indication of unbalanced pressure.
- Repeat entire bleeding procedure to correct either of these two conditions.
15. Remove brake bleeding equipment from master cylinder.
16. Fill master cylinder to the proper level.