TM 11-6660-200-14
5-21.
WIND DIRECTION TRANSMITTER SYNCHRO REPLACEMENT. (CONT)
REMOVAL
1.
Remove three screws (1) and lockwashers (2).
2.
Remove two screws (3) and lockwashers (4).
3.
Mark vertical support (5) in alinement with N on vane shaft housing (6).
CAUTION
Push connector (7) up from bottom of vertical support (5) to prevent breaking wires or
damaging connector.
4.
Pull vane shaft housing (6) out of vertical support (5) while pushing up on connector (7).
5.
Remove spring (8) from around three clips (9).
6.
Pull synchro (10) free of three clips (9).
7.
Remove nut (11), coupling (12), washer (13), and spacer (14) from synchro shaft (15).
8.
Remove five screws and wires from synchro (10).
9.
Remove synchro (10).
INSTALLATION
1.
Install spacer (14), washer (13), coupling (12), and nut (11) on synchro shaft (15).
2.
Install synchro (10) in vane shaft housing (6), positioning pin (16) on coupling (12) in notch (17) of vane shaft
coupling (18).
3.
Install spring (8) around three clips (9).
4.
Perform zeroing of wind direction transmitter synchro (para 5-22).
NOTE
Make sure O-ring (19) is in place on vane shaft housing (6).
5.
Install connector (7) through top of vertical support (5) and pull connector out of bottom.
6.
Install vane shaft housing (6) into top of vertical support (5).
7.
Aline N-stamp on vane shaft housing (6) with mark made on vertical support (5) during
disassembly.
8.
Install three screws (1) and lockwashers (2).
9.
Aline pin 2 (20) on connector (7) with locating pin (21) on vertical support (5).
10.
Install two screws (3) and lockwashers (4).
FOLLOW-ON MAINTENANCE: Install transmitter center section (para 5-16).
5-29
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