Table 2-1. Troubleshooting (Cont)
Test or Inspection
Step 2. Check for clogged governor oil filter screen. Remove oil pan
(TM 9-2320-363-20), Remove plug and oil filter screen (page 3-260).
If oil filter screen is clogged or damaged, clean or replace oil
filter screen as required (page 3-260) and repeat step 1.
If oil filter screen is not clogged or damaged, go to
Malfunction 3, steps 1 thru 3.
7. AUTOMATIC SHIFTS OCCUR AT TOO LOW A SPEED, OR SHIFTS ROUGH.
Step 1. Check for defective modulator valve, Remove modulator valve from
transmission (TM 9-2320-363-20), Apply 70 psi (483 kPa) air pressure at
modulator valve hose fitting. Check that modulator valve plunger moves as
air is applied. Modulator valve must not leak air when operated.
If modulator valve does not operate properly or is damaged,
replace modulator valve (TM 9-2320-363-20).