Help with a Procedure for AC Brake Adjustment

Post by **troutjohn** » Thu Mar 31, 2022 6:16 pm

I need some help with how to adjust my ac brakes. They came on a car that I bought with unknown adjustment and history. I am sure that they are not adjusted and working correctly. I have read all of the earlier posts on ac brakes but still have some questions.

The car is on jack stands, one wheel will stop when the brake pedal is pushed and the actuation arm on that brake moves slightly, about 1/4". On the other wheel the arm moves 1 1/2" and the wheel does not stop. I have cables connecting the brake arms to the pedal mechanism. There is a good level of lining visible on both of the brakes. The trans brake is set at a reasonable place engaging when the pedal is moving about 2". I am familiar with adjusting the transmission brake.

I see that there are 2 nuts on the brake mechanism - one for the top piece and the other on the bottom piece. How should I (what sequence or procedure) adjust these 2 to get the correct level of arm motion when the brake pedal is applied? How much movement should there be in the arms on the brake mechanism? I assume I adjust these first and then the clevis for the pedal movement. Is this correct?

After this adjustment what is the procedure to adjust the movement for the pedal with the clevis? How far should it move to actuate the arms? Read that when applied the brake should be 3 - 5" for good leverage.

Your help with a procedure to adjust these would be greatly appreciated.

John