TM 10-3930-671-24 Table 2-2.  Unit Troubleshooting Procedures - CONT. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION SERVICE BRAKE SYSTEM (CONT.) 23. NO BRAKE PEDAL - CONT. Step 3. Check for worn brake shoe linings (Appendix F, Transaxle, Section 7.0). If brake shoe linings are worn, replace brake shoe linings (Appendix F, TA18 Transaxle, Section 7.6). If brake shoe linings are not worn, go to step 4. Step 4. Check brake shoe linings adjustment (Appendix F, Brakes, Section 8.0). If brake shoe linings are out of adjustment, adjust brake shoe linings (Appendix F, Brake & Inching System, Section 8.4). If brake shoe linings are not out of adjustment, notify DS/GS maintenance. 24. BRAKE PEDAL SPONGY. Step 1. Check brake pedal adjustment (Appendix F, Brakes, Section 8.0). If brake pedal is out of adjustment, adjust brake pedal (Appendix F, Brake & Inching System, Section 8.4). If brake pedal is not out of adjustment, go to step 2. Step 2. Check brake wheel cylinders for external leaks (Appendix F, Transaxle, Section 7.0). If wheel cylinders have external leaks, replace wheel cylinders (Appendix F, TA18 Transaxle, Section 7.6). If wheel cylinders are OK, go to step 3. Step 3. Check for air in brake system (Appendix F, Brakes, Section 8.0). If air is in brake system, bleed brake system (Appendix F, Brake Bleeding, Section 8.5). If no air is in brake system, go to step 4. 2-15