Master Cylinder

Component Bleeding










Master Cylinder

WARNING: Do not use any fluid other than clean brake fluid meeting manufacturer's specification. Additionally, do not use brake fluid that has been previously drained. Following these instructions will help prevent system contamination, brake component damage and the risk of serious personal injury.

WARNING: Carefully read cautionary information on product label. For EMERGENCY MEDICAL INFORMATION seek medical advice. For additional information, consult the product Material Safety Data Sheet (MSDS) if available. Failure to follow these instructions may result in serious personal injury.

WARNING: Do not allow the brake master cylinder to run dry during the bleeding operation. Master cylinder may be damaged if operated without fluid, resulting in degraded braking performance. Failure to follow this instruction may result in serious personal injury.

NOTICE: Do not spill brake fluid on painted or plastic surfaces or damage to the surface may occur. If brake fluid is spilled onto a painted or plastic surface, immediately wash the surface with water.

NOTE: When any part of the hydraulic system is disconnected for repair or installation of new components, air can enter the system and cause spongy brake pedal action. This requires bleeding of the hydraulic system after it is correctly connected.

NOTE: When a new brake master cylinder is installed, or the system is emptied or partially emptied, it should be primed to prevent air from entering the system.

1. Disconnect the brake tubes.





2. Install short brake tubes onto the primary and secondary ports with the ends submerged in the brake master cylinder reservoir.





3. Fill the brake master cylinder reservoir with clean, specified brake fluid.

4. Have an assistant slowly pump the brake pedal until clear fluid flows from the brake tubes, without air bubbles.

5. Remove the short brake tubes and install the master cylinder brake tubes.
- Tighten to specifications, refer to Specifications.

6. Bleed each brake tube at the brake master cylinder as follows:

1. Have an assistant slowly pump the brake pedal, and then hold firm pressure on the brake pedal.

2. Loosen the rear-most brake tube fittings until brake fluid comes out. While the assistant maintains pressure on the brake pedal, tighten the brake tube fitting.

3. Repeat this operation until clear, bubble-free fluid comes out.

4. Refill the brake master cylinder reservoir as necessary. Repeat the bleeding operation at the front brake tube.