Greenheck Mounting Kit for Actuators used on Control Dampers (479869) - Manual (Page 3)

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PART NO. 872907: EXTERNAL MOUNT DIRECT DRIVE
Instructions
1. Have damper in desired fail position.
2. Install clip (item #4) into extension pin (item #1). Push
extension pin onto drive blade (bottom blade for
dampers with one or two blades) or third blade (when
damper has more than two blades).
3. Mount the stand-off bracket (item #2) over the
extension pin (item #1) spanning across the damper
frame. Fasten to the damper frame with bolts and nuts
(items 5 & 6).
4. Fasten the actuator bracket (item #3) to the standoff
bracket using bolts and nuts (items #5 & 6).
5. Install shoulder bolt (item #7 or 8) to the anti-rotation
bracket (item #3) using nut (item #9 or 10). Bolt
location will vary depending on the actuator model.
6. For fail close, position the blades in the closed
position and the actuator in its fail position. For fail
open, position the blades in the open position and the
actuator in its fail position. Tighten the actuator clamp
to the damper pin (item #1).
7. Attach actuator to anti-rotation bracket assembly (item
#3). Tighten the actuator onto the shaft (item #1).
8. Connect all electrical leads to the actuator. Apply
power to the actuator. The damper blades should
rotate to the power position and return to the fail
position when power is disconnected.