TCM FB-8 Series, Service Manual

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5.2.6 TROUBLESHOOTING GUIDE
Trouble Probable Cause Remedy
Poor braking
force
1. Brake fluid leaks from the brake system
Repair.
2. Maladjustment of brake shoe clearance Check and adjust the adjuster.
3. Overheating brake Check for dragging.
4. Poor contact between brake drum and
lining
Adjust contact.
5. Foreign matter sticking to lining Repair or replace.
6. Foreign matter mixed in brake fluid Check brake fluid.
7. Maladjustment of brake pedal Adjust.
Noisy brake
1. Lining surface hardened or foreign
matter sticking to lining
Repair or replace.
2. Deformed backing plate or loose bolts Repair or replace.
3. Shoes deformed or improperly installed Repair or replace.
4. Lining unevenly worn Replace.
5. Defective wheel bearing Replace.
Uneven
braking
1. Foreign matter adhering to lining Repair or replace.
2. Maladjusted brake shoe clearance Check and adjust the adjuster.
3. Malfunctioning wheel cylinder Repair or replace.
4. Shoe return spring defective Replace.
5. Deflected Drum
Repair or replace.
6. Improper tire inflation pressure
Adjust.
Soft or spongy
brake
1. Brake fluid leaks from brake system
Repair.
2. Maladjusted brake shoe clearance Check and adjust the adjuster.
3. Air mixed in brake system Bleed air.
4. Pedal maladjusted. Adjust.
5. BRAKE SYSTEM