TM 9-2520-246-34 Table 2-2.04. Troubleshooting (Continued) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 3. NOISY OPERATION. Test 1. Search for trouble. Step 1. Check all parts for wear, breaks, chips, or other damage; drain and flush; inspect drainings for metal chips, broken teeth, bearings, parts, etc. (Refer to para 5-6, 5-7, 5-16, and 5- 17.) Step 2. Disassemble, and repair or replace parts, as required. (Refer to para 5-6, 5-7, 5-16, and 5-17.) Step 3. Overhaul assembly. (Refer to para 5-6, 5-7, 5-16, and 5-17.) Test 2. Check for mismated gears (overhauled unit). Step 1. Disassemble, and repair or replace parts, as required. (Refer to para 5-6, 5-7, 5-16, and 5-17.) Step 2. Overhaul assembly. (Refer to para 5-6, 5-7, 5-16, and 5-17.) 2-13