WIND DIRECTION INDICATOR SYNCHRO REPLACEMENT.
Synchro, receiver (ID-373A/GMQ-11, ID-373B/GMQ-11, and
Synchro, receiver (ID-373B/GMQ-11 on order no. DAAB05-68-C-1227)
Remove four screws (1) and washers (2), and remove front panel (3) from indicator case .
There are four dial lampholders. Step 2 is typical for all four.
Squeeze both lampholder spring tabs together and pull lampholder (4) out of dial socket.
While holding indicator against front panel (3), remove four screws (5), lockwashers (6), and ring (7).
Remove indicator from front panel (3).
It is not necessary to remove dial window (8) or gasket (9) unless loose or damaged.