Chapter 6 – Testing and Repair, Page 6-44___________________________________________________
Damper Motor – Cont.
9.
Reach into the air Ventilator’s air inlet slot and push and hold the damper all the way back to
Position #3, the Fire Mode position. While holding, tighten the Shaft Clamp nuts and torque to
20 ft.-lbs.
10.
Replace the Damper Motor Access Cover and torque the screws to 7-9 in – lbs.
11.
Turn the electrical power back on to the Command Center.
12.
Test for proper operation.
Position Motor so
Electrical Cord is
Located Towards the
Front of the
Ventilator
Shaft Clamp Nuts
Must Face Forward
Towards the Front of
the Ventilator
This Arrow Must Be
Pointing Towards the
Back Of The Ventilator
Shaft Clamp
Figure 6-44-1
Damper Motor – Shown Set Up For
Mounting at Left End of Ventilator
Spring Drive Lock
Crank Receiver
“C” Clip
Top Motor Mount
