S15/T15 2WD Jimmy V6-262 4.3L (1991)
Brake Bleeding: Service and Repair
Hydraulic System Bleeding
Manual Bleeding
Manually Bleeding The Wheel Circuits
1.
Make sure the ignition is OFF and deplete the vacuum reserve by applying the brakes several times.
2.
Fill the master cylinder with DOT 3 brake fluid. During bleeding, keep the master cylinder at least one-half full at all times.
3.
Bleed the system according to the brake bleeding procedure.
4.
Check the brake pedal for a "spongy" feeling, and repeat the bleeding procedure as necessary.
5.
Properly dispose of all fluid bled from the brake system.
Pressure Bleeding
The pressure bleeding equipment must be of the diaphragm type. It 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. Use extreme care to prevent brake fluid from contacting any painted
surface.
Tools Required:
^
Brake Bleeder Adapter
^
Combination Valve Depressor
1.
Fill the pressure tank at least 1/3 full of brake fluid. The bleeder must be re-bled each time fluid is added.
^
Charge the bleeder to 140-170 kPa (20-25 psi).
2.
Use valve depressor to depress and hold the valve stem on the combination valve during the bleeding operation.
3.
Install the bleeder adapter.
4.
Bleed each wheel in the following sequence:
^
Right rear
^
Left rear
^
Right front
