TM 10-6640-239-13
4-67
b.
Attach motor linkage (20) to damper blade (21) using two screws (16), washers (17), lockwashers (18), and nuts
(19).
c.
Attach line to motor leads and draw motor leads through conduit (14) and attach conduit to motor with conduit nut.
d.
Insert damper enclosure (12) and motor (15) into plenum (7) and align so that end of conduit (14) with motor lead is
inside electrical junction box (6). Install lock nut (13) on conduit and tighten in place. Disconnect line attached to
motor leads.
e.
Connect motor leads as tagged in electrical junction box (6) and fasten junction box cover (5) in place with two
screws (4).
f.
Fasten damper enclosure (12) to plenum (7) using eight screws (8), lockwashers (9), 16 washers (10) and eight
nuts (11).
g.
Place filter (3) and screen (2) on plenum (7) intake and fasten with eight captive screws (1).
h.
Run an operational test to check damper/motor.
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