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Made in Switzland
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ENG-93001-93227-01.00 • ZSD • Subject to technical changes
15
Mounting instruction for tight-sealing dampers
1. Move damper blades to the fail-safe
position (a) and determine the orienta-
tion of the universal clamp.
2. Engage the actuator on the shaft as
close as possible to the determined ori-
entation. Fix the screws lightly on the
V-bracket by hand. In the example the
spring return has to go clockwise (cw).
Therefore the actuator has to be visible
with the mounting side R.
3. Mount the universal mounting bracket
in the right position (do not tighten the
screws).
4. Remove the screw at one end of the
mounting bracket and pivot it away
from the actuator (b).
5. Loosen the universal clamp and, mak-
ing sure not to move the damper shaft,
rotate the actuator approximatively 5°
in the direction which would open the
damper (c).
6. Tighten the universal clamp to the shaft
(10 mm wrench).
7. Rotate the actuator “damper closed”
to apply pressure to the damper seals
(d).
8. Rotate the mounting bracket in the
definitive position (e) and tighten all fas-
teners.
Installation steps
as example
m0049712
BC
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