TM-9-2520-246-34

TRANSMISSION MODEL 3052, NSN 2520-00-347-4520

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL

MAY 1978
TM-9-2520-246-34

  TM-9-2520-246-34 - Page 21 of 153

TM 9-2520-246-34
Table 2-2.01. Troubleshooting
(Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test 3. Inspect shifter forks for wear, twists, bends, and breaks. (Refer to para 2-9b(15).)
Replace shifter forks, as required. (Refer to para 3-9b and 3-11o.)
Test 4. Inspect 1st and reverse sliding gear. (Refer to para 3-16 and 3-17.)
Replace 1st and reverse sliding gear. (Refer to para 3-8j and 3-10g.)
Test 5. Inspect 2nd and 3rd and 4th and 5th speed synchronizers for wear and breakage. (Refer to para 3-16
and 3-17.)
Step 1. Replace 2nd and 3rd speed synchronizers. (Refer to para 3-9b and 3-10c.)
Step 2. Replace 4th and 5th speed synchronizers. (Refer to para 3-8i and 3-11h.)
Step 3. Replace gears, as required. (Refer to para 3-8, 3-9, 3-10, and 3-11.)
Step 4. Overhaul transmission. (Refer to Chapter 3.)
3. INCOMPLETE SHIFTING.
Test 1. Inspect shifter forks for loose attachment to shifter shafts.
Step 1. Tighten setscrews securing shifter forks and shafts.
Step 2. Replace shifter shafts. (Refer to para 3-9e and 3-10a.)
Step 3. Replace shifter forks. (Refer to para 3-9e and 3-10a.)
Test 2. Check for bent shifter fork(s). (Refer to para 2-9b(15).)
Replace shifter fork(s). (Refer to para 3-9e and 3-10a.)
Test 3. Inspect shifter fork(s) for cracks or broken out areas.
Replace shifter fork(s). (Refer to para 3-9e and 3-10a.)
Test 4. Inspect shifter shaft cover for breaks, cracks, oversize shaft bores, and stripped threads. (Refer to
para 2-9b(16).)
Step 1. Repair cover, as necessary.
Step 2. Replace cover. (Refer to para 3-8b and 3-11o.)
Test 5. Inspect gears and synchronizers for wear or looseness. (Refer to para 3-16 and 3-17.)
Step 1. Replace synchronizers. (Refer to para 3-8i, 3-9b, 3-10b, and 3-10c.)
Step 2. Replace gears and shafts. (Refer to 3-8, 3-9, 3-10, and 3-11.)
Step 3. Repair or overhaul transmission. (Refer to para 3-7e, 3-10, and 3-1l.)
2-4


Back to Top