TM 10-3930-653-14&P WHEEL BRAKE TROUBLESHOOTING Problem Possible Cause Remedy Poor braking force 1. Fluid leaks from brake system Repair. 2. Maladjustment of brake shoe clear- Adjust the adjuster. ance. 3. Overheating brake Check for dragging. 4. Poor contact between brake drum Readjust. and lining. 5. Foreign matter adhered to lining Repair or replace. 6. Foreign  matter mixed in brake Check brake fluid. fluid. 7. Maladjustment of brake pedal Adjust. (inching valve). Noisy brake 1. Hardened lining surface or foreign Repair or replace. matter adhered thereto. 2. Deformed backing plate or loose Repair or replace. bolts. 3. Deformed shoe or malinstallation Repair or replace. 4. Worn lining Replace. 5. Loose wheel bearing Repair. Uneven braking 1. Foreign matter adhered to lining Repair or replace. 2. Maladjustment of brake shoe clear- Adjust the adjuster. ance. 3. Malfunctioning wheel cylinder Repair or replace. 4. Shoe return spring deteriorated Replace. 5. Deflected drum Repair or replace. 6. Improper tire inflation pressure Adjust. Soft or spongy brake 1. Brake fluid leaks from system Repair. 2. Maladjustment of brake shoe clear- Adjust the adjuster. ance. 3. Air mixed in system Bleed air. 4. Maladjustment of pedal Readjust. 4-235