SPEEDOMETER TROUBLESHOOTING

TM 9-2320-285-24-1

2-81.

SPEEDOMETER TROUBLESHOOTING

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

POINTER MOVES ERRATICALLY OR SCRAPING NOISE IS HEARD

Step 1.

Remove speedometer cable and check if speedometer cable is kinked

If speedometer cable is kinked, replace (para 2-85).

If speedometer cable is not kinked, go to step 2 below.

Step 2.

Check speedometer cable for inadequate lubrication.

If speedometer cable is inadequately lubricated, lubricate (para

If speedometer cable is adequately lubricated, go to step 3

below.

Step 3.

Inspect speedometer cable housing for dents, sharp bends, or other

damage.

If speedometer cable housing is damaged, replace speedometer

cable and housing (para 2-85).

If speedometer cable housing is not damaged, go to step 4 below.

Step 4.

Replace speedometer head (para 2-85).

If malfunction is corrected, speedometer head was defective; no

further action is required.

If malfunction is not corrected, go to step 5 below.

Step 5.

Replace speedometer adapter and gear assembly (para 2-85).

If malfunction is corrected, speedometer adapter or gear

assembly was defective; no further action is required.

If malfunction is not corrected, transmission requires repair;

notify direct support maintenance.

2-907