LOW MAIN PRESSURE IN ALL RANGES (Cont)

TM 9-2320-285-24-2

3-14.

TRANSMISSION TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

4. LOW MAIN PRESSURE IN ALL RANGES (Cont)

Step 3.

Examine seal ring on oil filter tube.

a. If seal ring is leaking or missing, replace (para 2-41c).

b. If seal ring is not leaking or missing, notify general support

maintenance.

5. NO RESPONSE TO SHIFT LEVER MOVEMENT

Perform main pressure check to see if pressure is low (less than 125 psi

with vehicle at 600 rpm idle, in forward range, brakes applied)

a. If main pressure is low, refer to Malfunction 4 above.

b. If main pressure is not low, notify general support maintenance.

6. ALL AUTOMATIC SHIFTS OCCUR AT TOO HIGH SPEED

Drain fluid and remove oil pan (para 2-41b). Check if shift valve adjusting

rings are properly set.

a. If shift valve adjusting rings are not properly set, adjust them

higher the appropriate amount (para 3-17b). If more than one

ring is moved in the same direction, move the adjusting ring on

the modulator the same amount in the same direction.

b. If shift valve adjusting rings are properly set, notify general

support maintenance.

7. INDIVIDUAL SHIFT (2-3, 3-4, 4-5) OCCURS AT TOO HIGH SPEED

Drain fluid and remove oil pan (para 2-41b). Check if adjusting ring for

malfunctioning shift is positioned correctly.

a. If adjusting ring is not positioned correctly, reposition it to

reduce shift point speed the appropriate amount (para 3-17b).

b. If adjusting ring is positioned correctly, notify general

support maintenance.

3-92