SPEEDOMETER OR TACHOMETER NEEDLE DOES NOT MOVE, IS NOT STEADY, OR DOES NOT READ CORRECTLY.

TM 9-2350-238-20-1

Table 2-3. UNIT TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

24. XMSN OIL TEMP INDICATOR NEEDLE DOES NOT MOVE, IS NOT STEADY, OR DOES

NOT READ CORRECTLY.

Troubleshoot transmission oil temperature indicator circuit. Refer to Electrical Circuit

Symptom Index, page 2-92.

25. FUEL LEVEL INDICATOR NEEDLE DOES NOT MOVE, IS NOT STEADY, OR DOES NOT

READ CORRECTLY.

Troubleshoot fuel level indicator circuit. Refer to Electrical Circuit Symptom Index, page

26. SPEEDOMETER OR TACHOMETER NEEDLE DOES NOT MOVE, IS NOT STEADY, OR

DOES NOT READ CORRECTLY.

Disconnect shaft assembly at speedometer or tachometer. Check shaft core

Step 1.

for rotation with engine running.

If core is rotating, replace speedometer or tachometer. Refer to

b. If core is not rotating, go to step 2 or 3. Connect shaft assembly to

speedometer or tachometer.

NOTE

To gain access to shaft assemblies, remove hull engine

compartment deck assembly lid, refer to page 2-935; and

hull transmission compartment assembly access cover,

Disconnect speedometer shaft assembly from adapter at transmission. Check

Step 2.

rotation in adapter with engine running.

If rotation exists in adapter, go to step 4.

If no rotation exists in adapter, replace damaged parts. Refer to

page 2-1149. Connect speedometer shaft assembly to adapter.

Disconnect tachometer shaft assembly from adapter at engine. Check rotation

Step 3.

in adapter with engine running.

If no rotation exists in adapter, notify direct support maintenance.

2-65