Inspection Procedure 4
INSPECTION PROCEDURE 4: Brake DragDIAGNOSIS
STEP 1. Check the parking brake operating lever return.
Q: Is there fault?
YES: Repair or replace it Then go to Step 9.
NO: Go to Step 2
STEP 2. Check the brake shoe springs for breakage.
Q: Are the brake shoe springs broken?
YES: Replace the spring. Then go to Step 9.
NO: Go to Step 3
STEP 3. Check the amount of grease at each sliding section.
Q: Is there insufficient grease?
YES: Apply grease Then go to Step 9
NO: Go to Step 4
STEP 4. Check the parking brake lever effort.
Q: Is there fault?
YES: Adjust it Then go to Step 9
NO: Go to Step 5
STEP 5. Check the clearance (too low) between the push rod and primary piston.
Q: Is there fault?
YES: Adjust the clearance. Then go to Step 9.
NO: Go to Step 6
STEP 6. Check the master cylinder piston return spring for damage and return port for clogging.
Q: Is there damage?
YES: Replace the part Then go to Step 9
NO: Go to Step 7
STEP 7. Check port for clogging.
Q: Is the port clogged?
YES: Repair it Then go to Step 9
NO: Go to Step 8
STEP 8. Check disc brake pistons for sticking.
Depress the brake pedal, then release Confirm each wheel spins freely
Q: Are all wheels stuck?
YES: Inspect that brake assembly Then go to Step 9
NO: Go to Step 9
STEP 9. Recheck symptom.
Q: Is the symptom eliminated?
YES: The procedure is complete
NO: Start over at step 1 If a new symptom surfaces, refer to the symptom chart