Bleeding Procedures

REASON FOR BLEEDING
Bleeding is necessary if air has been introduced into the hydraulic brake system. It may be necessary to bleed the system at all four wheels if air has been introduced by a low fluid level condition in the master cylinder or if the brake pipes have been disconnected at either the master cylinder or the combination valve. If a pipe is disconnected at one wheel, then only bleed that particular wheel. The time required to bleed the hydraulic system when the master cylinder is removed can be reduced if the master cylinder is filled with fluid and as much air as possible is bled from the cylinder before installing it on the vehicle.

Setting The Parking Brake:

- Set the parking brake firmly while bleeding.
- Perform bleeding operation with ENGINE RUNNING, to prevent damage to push rod seal. Make sure exhaust is safely ventilated.
- Bleed the hydraulic system with the fluid reservoir filled to the specified level.

Bleeding Sequence:

- Bleed the system, using the sequence shown.

1. Fill the brake fluid reservoir with brake fluid.

NOTE:
- Brake fluid is a strong solvent that will damage paint in seconds.
- Take care to prevent foreign matter from entry, when replenishing or replacing brake fluid.

Connecting Vinyl Pipe To Bleeder Screw:

2. Connect a vinyl pipe to the bleeder screw on the anti-lock valve, wheel cylinder or caliper body and place the other end of the pipe in a transparent container.

Releasing Brake Fluid:

3. Pump the brake pedal several times and hold it depressed. Loosen the bleeder screw to release brake fluid together with air bubbles. Tighten the bleeder screw before pressure is released completely.
4. Repeat step 3 until the air bubbles disappear completely. Securely tighten the bleeder screw when the air bubbles disappear completely.
5. Repeat step 3 and 4 on the remaining wheel cylinders or calipers.

Filling Brake Fluid To "MAX" On Reservoir:

6. Fill the brake fluid to the "MAX" mark on the reservoir. Pour brake fluid carefully so as not to produce air bubbles.

Installing Cap:

7. If the cap diaphragm is stretched, return it to the original position. Install the cap.

NOTE: Never reuse the old brake fluid.