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TM 10-3930-638-24&P
2-36. TRANSMISSION TROUBLESHOOTING (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. SLOW OR ERRATIC TRANSMISSION SHIFTING (cent)
Step 4. Check transmission linkage for proper adjustment or damage (para 2-38 b).
a. If transmission linkage is not adjusted properly, adjust; if damaged, repair by replacing the
damaged part or parts (para 2-38b).
b. If transmission linkage is okay, check speed control cable for damage; replace if necessary
(para 2-38b).
3. HIGH TRANSMISSION OIL TEMPERATURE
step 1.
Check oil level with transmission at operating temperature and engine operating.
a. If oil level is not between FULL and ADD marks, add oil (refer to current lubrication order).
b. If oil level is between FULL and ADD marks, proceed to step 2.
Step 2. Check transmission oil cooler for clogged fins or obstruction, leakage, or damage.
a. If oil cooler fins are clogged, clean; if fins are obstructed, remove obstructions.
If oil cooler is leaking or damaged, replace oil cooler (para 2-38g).
b. If oil cooler is okay. proceed to step 3.
Step 3. Check hoses and lines between transmission and oil cooler for leakage or damage.
a. If hoses and lines between transmission and oil cooler are leaking or damaged, replace (para 2-38f).
b. If hoses and lines between transmission and oil cooler are okay, proceed to step 4.
Step 4. Check transmission temperature indicator and switch (electrical system) (para 2-25 and 2-31c,
respectively).
a. If transmission temperature indicator is defective, replace it (para 2-28e); if transmission
temperature switch is defective, replace it (para 2-31c).
b., If transmission temperature indicator and switch are okay, proceed to step 6.
Step 5. Check oil filter for leakage or damage.
a. If oil filter is leaking, tighten it; if damaged, replace it (para 2-38a).
b. If oil filter is okay, remove screen assembly (para 2-38a) and check it for damage or clogged
condition. Replace screen assembly if damaged; clean if clogged (para 2-38a).
2-196
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