TM 9-2520-246-34 Table 2-2.01. Troubleshooting (Continued) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 5. NOISY OPERATION. Test 1. Locate origin of noise. Step 1. Step 2. Step 3. Disassemble transmission for inspection. (Refer to para 3-8, 3-9, and 3-12.) Replace worn and defective parts. (Refer to para 3-16 and 3-17.) Repair or overhaul transmission. (Refer to Chapter 3.) Test 2. Inspect for mismated gears. (Refer to para 3-16 and 3-17.) Step 1. Replace gears and bearings. (Refer to para 3-8, 3-9, and 3-12.) Step 2. Repair or overhaul transmission. (Refer to Chapter 3.) Test 3. Check clutch release bearing. Replace clutch release bearing. (Refer to para 3-8a and 3-11r.) 2-6