t.a.c. MS-83010 Series General Instructions Manual page 6

Figure-8 Typical Bolt-on Bracket Mounting (AM-532).
Figure-9 Installation of Damper Leaf Connector.
Figure-10 Typical External Pivot Mounting for MS-8305X
Series (Crank Arm), Normally Closed.
6
MS-8305X 190 lb.-in. Damper Actuator Typical
External Pivot Mounting (Crank Arm)
Accessories typically required for mounting per Figures
10 through 13 and 15
•
Crank arm; AM-530
•
Actuator shaft extension; AM-533
•
Pivot stud for pivot mounting; AM-534
•
Clevis for pivot mounting; AM-535
•
Mounting plate for pivot mounting; AM-536
•
Brace kit for pivot mounting (optional); AM-538
Mounting Instructions
Refer to Figures 10 through 13 and 15.
1. Attach the mounting plate to the duct or wall with the
damper shaft protruding through the locator hole in the
mounting plate. If this is not possible, additional shaft
extensions may be used to allow locating the actuator
farther from the damper shaft. Each extension provides 4"
(101.6 mm) of extension to the actuator shaft.
2. Install pivot stud into the correct hole in the actuator
mounting plate (see Figures 10 through 12).
3. Remove the ball joint connector from the actuator.
4. Install the shaft extension onto the actuator shaft.
5. Install the clevis onto the shaft extension.
6. Install the actuator to the pivot stud.
7. Rotate the damper to its normal position.
8. For a normally open damper , adjust the clevis until the
hole in the clevis aligns with the correct hole in the crank
arm and then install clevis pin and cotter pin. When the
damper is closed the actuator should be 1/16" (1.6 mm)
from the extend end of stroke (verify in step 9).
For a normally closed damper , adjust the clevis until the
hole in the clevis aligns with the correct hole in the crank
arm when the damper is pushed closed and then install
clevis pin and cotter pin. This adjustment should be made
when the actuator is powered and positioned so that it is
1/16" (1.6 mm) off its retract position to ensure close-off
of the damper.
9. After the actuator is powered and can be controlled, refer
to the CHECKOUT section to ensure the damper is linked
correctly.
Figure-11 Typical External Pivot Mounting for MS-8305X
© Copyright 2006 TAC All Rights Reserved.
Series (Crank Arm), Normally Open.
F-19449-5