TM 11-6660-200-14
ORGANIZATIONAL TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. Windspeed indicator shows erratic or no readings, wind direction indicator function-
ing properly. (Cont)
Step 3. Check orange wire 4-14 and brown wire 4-7 on indicator for defective
connections.
Tighten or replace wires.
Step 4. Check for chips or warpage on transmitter impeller.
Replace impeller (para 4-29).
7. Wind direction indicator reacts slowly.
Turn vane and check for binding.
Refer to higher category of maintenance.
8. Wind direction indicator shows erratic or no readings, other functions normal.
Step 1. Check continuity of wires from TB201 to indicator.
White wire 4-6 from terminal 1.
Black wire 4-1 from terminal 2.
Green wire 4-2 from terminal 3.
Red wire 4-4 from terminal 4.
Yellow wire 4-5 from terminal 5.
Tighten, repair, or replace wire.
Step 2. Check transmitter connector J1 for cracks or loose or broken wires.
Tighten, repair, or replace wires or connector (para
4-8 or 4-13).
9. Wind direction indicator pointer points 180 degrees from correct direction.
Step 1. Check for reversed wires at indicator.
Correct wiring. (See FO-3.)
Step 2. Check for reversed wires at transmitter connector J1.
4-34
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