TM 11-6660-200-14
DIRECT SUPPORT AND GENERAL SUPPORT TROUBLESHOOTING (CONT)
TM
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Wind direction indicator pointer either spins or oscillates excessively.
Remove all wires from indicator and check for resistance between terminals R1 and R2,
S1 and S2, S2 and S3. Check for a short circuit by jumping from all terminals to case ground.
Refer to higher category of maintenance.
5. Windspeed indicator shows lower reading than actual windspeed.
Perform windspeed generator friction test (para 5-26).
Refer to higher category of maintenance.
6. Windspeed indicator shows erratic or no readings, all other functions normal.
Check for open or shorted generator.
Refer to higher category of maintenance.
7. Wind measuring set emits rf interference.
Check for defective filter FL1 or capacitor C1.
Replace filter FL1 or capacitor C1 (para 5-12).
5-3/(5-4 blank)
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