TM 9-2320-273-20
Table 6-1. Transmission Troubleshooting Procedures.
MALFUNCTION.
TEST OR INSPECTION.
CORRECTIVE ACTION.
1.
2.
SELECTOR LEVER CANNOT BE MOVED:
Step 1.
Step 2.
Step 3.
Step 4.
Inhibitor plate jammed with dirt.
Remove cover, clean, and lubricate (Seg LO 9-2320-273-12).
Inhibitor centering piston assembly out of alinement or damaged.
Replace (Refer to Direct Support).
Bolts holding air control line to ratio selector too long or incorrectly torqued.
Tighten to 9 Ib-ft ( 12 N•m), replace damaged components, or use shorter bolts.
Bolts incorrectly installed when ratio selector assembled.
Check to see that bolts are not run in at an angle.
ENGINE DOES NOT TURN DRIVESHAFT IN ANY SPEED FORWARD OR REVERSE:
Step 1.
Step 2.
Step 3.
Step 4.
Check oil level in transmission.
Add oil to correct level (see LO 9-2320-273-12).
Check to see that air hand control valve on ratio selector is pushed in.
Push in hand valve.
Check to see that air pressure supply is available and adequate to transmission;
60-120 psi (414-827 kPa).
Troubleshoot compressed air system (para 9-5).
Inspect air control line and connectors between ratio selector and transmission.
Tighten to 18 Ib-ft (24 N•m) or replace damaged components.
6-3
