TM 11-6660-200-14
5-10.
WINDSPEED GENERATOR G1 REPLACEMENT.
MATERIALS/PARTS:
Detector, windspeed assembly (T-420A/GMQ-11 order no. DAAB05-68-
C-1227) NSN 6660-00-460-7355
Generator, direct current (T-420/GMQ-11 and T-420A/GMQ-11)
NSN 6660-00-906-1117
Generator, tachometer (T-420B/GMQ-11, order no. 19961-P-60,
19396-P-61, and 40154-P-62) NSN 6660-00-822-2133
Generator, tachometer (T-420B/GMQ-11, order no. 51014-P-57 and
5029-P-61) NSN 6660-00-542-1074
PRELIMINARY PROCEDURE: Remove generator cover (para 4-30).
NOTE
Item 1 is used for balancing if necessary. if not used, proceed to step 2.
1.
Remove counterweight (1).
2.
Remove two slotted nuts (2), lockwashers (3), and washers (4).
CAUTION
Pull generator (5) straight out to prevent bending of collector ring brushes (6).
3.
Remove generator (5) and O-ring (7).
INSTALLATION
1.
Position generator on side with positioning hole (8), if vane tail was removed.
2.
Install O-ring (7) on center section (9).
3.
Install generator (5) with collector ring brushes (6) toward bottom on two studs (10).
4.
Install two washers (4), lockwashers (3), and slotted nuts (2).
5.
Install counterweight (1), if used.
FOLLOW-ON MAINTENANCE: Install generator cover (para 4-30).
5-12
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