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Section 5: Installation Instructions
User Instructions
MAN-02-04-60-0351-EN Rev. 3
Febraury 2019
Installation Instructions
Section 5: Installation Instructions
Installation work of any kind for the actuator may only be performed by qualified personnel.
5.1
Mechanical Connection
Check:
•
Whether the fitting flange and actuator flange match-up.
•
Whether the drilled hole matches up with the shaft.
•
Whether there is sufficient engagement of the fitting shaft in the actuator hole.
Make sure the fitting is in the same position as the actuator:
•
For a “fail-safe opener” actuator, the fitting has to be completely open.
•
For a “fail-safe closer” actuator, the fitting has to be completely closed.
In general, heed the following instructions:
•
Clean the bare parts on the actuator coated with rust protectant.
•
Clean the mounting surface for the fitting thoroughly.
•
Lightly grease the fitting shaft.
•
Set the actuator in place.
•
Make sure of centered positioning and that the contact surface of the flange is full.
•
Fasten the actuator with suitable bolts:
—
Minimum strength grade: 8.8 or A2-70
—
Ensure sufficient thread engagement (min. 1xd)
CAUTION: USE SUITABLE BOLTS
Screws that are too long may go against the thread root, creating the risk of the actuator
moving radially in relation to the fitting. This may lead to the bolts shearing off.
Unsuitable bolts may result in the actuator falling off.
•
Tighten bolts to the correct torque, alternating between bolts on opposite sides.
Table 1.
Torque Thread Table (1)
Thread
Tightening Torque [Nm] for Bolts with Strength Grade
8.8
A2-70/A4-70
M6
11
8
M8
25
18
M10
51
36
M12
87
61
M16
214
150
M20
431
294
M30
1489
564