Table 2-1. Troubleshooting (Cont)
Test or Inspection
Step 3. Check for damaged or missing preformed packing on internal filter pickup
l If preformed packing is damaged or missing, replace preformed
packing and gasket (page 3-258) and repeat step 1.
l If preformed packing is not damaged or missing, disassemble
transmission (page 14-1) and inspect oil pump, main pressure
regulator valve, and control valve body for loose screws and
Step 4. Remove oil pan (TM 9-2320-363-20). Manually shift transmission and check
that manual shaft and detent lever engage selector valve and that actuator
pin is attached to detent lever.
l If selector valve does not engage detent lever, repair selector
valve (page 14-74) or replace defective parts (TM 9-2320-363-20).
l If selector valve engages, disassemble transmission (page 14-1)
and valve body (page 14-74) and check for worn clutch packs
in transmission, loose valve body screws, and sticking valves in