ALL AUTOMATIC SHIFTS OCCUR AT TOO LOW SPEED

TM 9-2320-285-24-2

3-14.

TRANSMISSION TROUBLESHOOTING (CONT)I

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

8. ALL AUTOMATIC SHIFTS OCCUR AT TOO LOW 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.

9. INDIVIDUAL SHIFT (2-3, 3-4, 4-5) OCCURS AT TOO LOW 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 ring

to increase shift point speed the appropriate amount (para

b. If adjusting ring is positioned correctly, notify general

support maintenance.

10. SLOW OR ERRATIC SHIFTING

Perform main pressure-check (para 3-17a(2)).

a. If main pressure is low (less than 125 psi with vehicle at 600

rpm idle in forward drive range, brakes applied), refer to

Malfunction 4 above.

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

11. ROUGH SHIFTING

Check position of spring adjusting ring on modulator valve assembly.

a. If position of spring adjusting ring is not correct, adjust

b. If position of spring adjusting ring is correct, notify general

support maintenance.

3-93