LOW LUBRICATION PRESSURE

TM 9-2320 285-24-2

13-14. TRANSMISSION TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

3. LOW LUBRICATION PRESSURE

Step 1. Check fluid level on transmission dipstick with transmission at

operating temperature and engine operating.

a. If fluid level is below ADD mark, add fluid (para 2-41b) to FULL

mark.

b. If fluid level is not below ADD mark, proceed to step 2 below.

Step 2. Examine transmission cooler hoses for leakage or restriction.

a. If cooler hoses are leaking or restricted, replace and, if

necessary, reroute (para 2-41e).

b. If cooler hoses are not leaking or restricted, proceed to step 3

below.

Step 3. Examine external oil filter for blockage.

a. If external filter is restricted, replace (para 2-41e).

b. If external filter is not restricted, notify general support

maintenance.

4. LOW MAIN PRESSURE IN ALL RANGES (less than 125 psi with vehicle at 600 rpm idle, in forward drive range,

brakes applied) (para 3-17a(2)).

Step 1.

Check fluid level on transmission dipstick with transmission at

operating temperature and engine operating.

a. If fluid level is below ADD mark, add fluid (para 2-41b) to FULL

mark.

b. If fluid level is above ADD mark and at or below FULL mark,

proceed to step 2 below.

Step 2.

Drain fluid, remove transmission oil pan (para 2-41b), and remove

oil filter (para 2-41c). Examine oil filter.

a. If oil filter is clogged, replace (para 2-41c).

b. If oil filter is not clogged, proceed to step 3 below.

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