TM 10-6640-215-13
4-33. REMOVE/INSTALL MACHINERY ROOM EXHAUST DAMPER
MOTOR- continued.
c.
Remove two screws, flat washers, lockwashers, and nuts attaching motor linkage to damper blade.
d.
Remove two screws, lockwashers, and flat washers attaching motor to damper motor mounting plate and
remove defective motor with attached motor linkage from damper.
e.
Remove linkage from defective motor and carefully withdraw motor leads from junction box.
INSTALLATION
Install Machinery Room Exhaust Damper ,Motor. See figure 4-21.
a.
Attach linkage to new motor and attach motor to damper motor mounting plate with two screws, flat washers,
and lockwashers.
b.
Draw motor leads into 2" x 4" junction box with line previously attached and connect leads. Place cover on
junction box and fasten in place with two screws.
c.
Attach motor linkage to damper blade with two screws, flat washers, lockwashers, and nuts.
d.
Place the two screens on exhaust plenum and fasten each one in place with six screws and flat washers.
e.
Run an operational test to check damper motor.
4-77
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