ETS 73
0548-990-51---60g_2019.10.indd
EN 3
EN 4
EN 5
EN 6
EN 7
950 mm 1'100 mm 1'250 mm 1'400 mm 1'600 mm
18 Nm
26 Nm
37 Nm
54 Nm
87 Nm
37 mm
34 mm
29 mm
23 mm
20 mm
34 mm
30 mm
23 mm
15 mm
12 mm
32 mm
29 mm
22 mm
14 mm
12 mm
X*
0548-990/52g
Page 45 of 98
Mounting and operating instructions
Closing spring
Adjusting screw
EN class
Width of door leaf
Closing torque 0...4°
Normal rods
Measure X *
Sliding rods pulling function
Measure X *
Sliding rods pushing function
Measure X *
4.6
Adjusting the pre-stressing of the closing spring
Upon delivery, the closing spring is pre-stressed for a measure X* = 26 mm. To ensure a safe and
optimal operation of the swing door drive mechanism, the correct pre-stressing must be adjusted
for the closing spring (by means of the setting screw).
Note:
The correct pre-stressing of the closing spring must imperatively be adjusted before
carrying out the automatic setting-up procedure! The setting values are only manda
-
tory for fire-protection and/or escape way doors. As a general rule, the closing spring
force can be reduced when setting the standard drive mechanism.
A possibly existing door lock must be correctly engaged to lock the leaf.
Otherwise: adapt the pre-stressing of the closing spring accordingly.
Attention:
The setting screw needs to be shortened by 10 mm if it butts against the side cover's
strain relief (with program selector key).
Procedure:
1. Close the door leaf.
2. Using the setting screw, adjust the measure X* in function of the respective situation.
3. Open the door leaf by at least 60° and then let it be closed.
* Measure X is an approximated value for a lintel depth of 0 mm. The force necessary for manually opening a door must
not exceed 150 N. This effort shall be measured as a static force on the main closing edge (perpendicularly to the door
leaf), at a height of 1'000 mm ±10 mm.
Program selector
further away from
the door hinges
Drive mechanism standard
Strain relief
Adjusting screw
