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 - Page 22 of 153
TM 9-2520-246-34
Table 2-2.01. Troubleshooting
(Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. LOOSE SHIFTING.
Test 1.
Test 2.
Test 3.
Inspect gear shift lever for wear or bends.
Step 1. Straighten gear shift lever.
Step 2. Replace gear shift lever. (Refer to para 3-9e and 3-10a.)
Check for bent or broken shifter forks. (Refer to para 2-9b(15).)
Replace shifter forks. (Refer to para 3-9b and 3-11o.)
Inspect for loose lugs and setscrews, and worn or broken shifter shafts. (Refer to para 2-9b(13).)
Step 1. Tighten or replace loose lug and setscrews. (Refer to para 3-9e and 3-10a.)
Step 2. Replace worn or broken shifter shafts. (Refer to
Test 4. Inspect shifter shaft cover for wear, breaks, cracks,
para 3-9e and 3-10a.)
missing sections, oversize bores, and
stripped threads. (Refer to para 2-9(16).)
Step 1.
Step 2.
Step 3.
Step 4.
Retap threaded holes.
Weld cover, where possible.
Install fabricated bushings in oversize bores, if possible.
Replace cover assembly. (Refer to para 3-8b and 3-11a.)
Test 5.
Test 6.
Test 7.
Check 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 para 3-8, 3-9, 3-10, and 3-11.)
Step 3. Repair or overhaul transmission. (Refer to Chapter 3.)
Check main drive gear assembly for wear and flaws. (Refer to para 3-16 and 3-17.)
Step 1. Replace main drive gear assembly (Refer to para 3-9b and 3-10c.)
Step 2. Repair or overhaul transmission. (Refer to Chapter 3.)
Inspect case for cracks, breaks, distortion, broken out pieces, sections, and areas, stripped or missing
threads, out-of-round bore, and irregular surfaces. (Refer to para 2-9b(1).)
Replace case. (Refer to para 3-8 and 3-11.)
2-5
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