TRANSMISSION TROUBLESHOOTING

TM 10-3930-638-24&P

2-36. TRANSMISSION TROUBLESHOOTING (cont)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. FOAMY OIL (cont)

Step 3. Remove transmission oil level dipstick and check for water on dipstick.

a. If water is on dipstick, drain oil, replace oil filter, and add new oil (para 2-38a) (refer to

current lubrication order).

b. If water is not on dipstick, proceed to step 4.

Step 4. Check if charging pump mounting bolts are loose.

If charging pump mounting bolts arc loose, tighten them.

2. SLOW OR ERRATIC TRANSMISSION SHIFTING

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 oil filter for leakage and/or damage.

a. If oil filter is leaking, tighten; if damaged, replace (para 2-38a).

b. If oil filter is not leaking or damaged, proceed to step 3.

Step 3. Remove screen assembly and check if dirty or damaged (para 2-38a).

a. If screen assembly is dirty, clean; if damaged, replace (para 2-38a).

b. If screen assembly checks okay, proceed to step 4.