Magnetic Autocontrol MHTM MicroDrive Access Series, Operating Instructions Manual

Page: 78 / 144

Barrier MHTM
TM
MicroDrive Access and Parking
Assembly and installation
78 5815,5013US / Version 05
8.14.2 Overview table balancing springs
NOTE!
The following overview tables "Balancing springs"
do not take into consideration any attachment
parts. For barrier arms with attachment parts, the
required number of springs may deviate from the
number of springs in the overview table.
The following overview tables apply for barriers with VarioBoom.
The strong springs are marked with a yellow dot at the suspension
bolt.
Overview table balancing springs for barriers with
VarioBoom without pendulum support
Line width Number springs weak Number springs strong
4.9 to 5.6 ft (1.5 to 1.7 m) 1 –
5.9 to 7.6 ft (1.8 to 2.3 m) 2 –
7.9 to 9.5 ft (2.4 to 2.9 m) 3 –
9.8 to 11.2 ft (3.0 to 3.4 m) 4 –
11.5 to 12.8 ft (3.5 to 3.9 m) 5 –
13.1 to 14.1 ft (4.0 to 4.3 m) 6 –
14.4 to 15.1 ft (4.4 to 4.6 m) 7 –
15.4 to 16.4 ft (4.7 to 5.0 m) 8 –
16.7 to 17.7 ft (5.1 to 5.4 m) 9 –
18.1 to 19.7 ft (5.5 to 6.0 m) 7 2
Table 17: Overview table balancing springs for barriers with VarioBoom without pendulum support
Overview table balancing springs for barrier with
VarioBoom with pendulum support
Line width Number springs weak Number springs strong
11.5 to 11.8 ft (3.5 to 3.6 m) 6 –
12.1 to 12.8 ft (3.7 to 3.9 m) 7 –
13.1 to 14.1 ft (4.0 to 4.3 m) 8 –
14.4 to 15.8 ft (4.4 to 4.8 m) 9 –
16.1 to 17.7 ft (4.9 to 5.4 m) 7 2
18.0 to 19.0 ft (5.5 to 5.8 m) 5 4
19.4 to 19.7 ft (5.9 to 6.0 m) 4 5
Table 18: Overview table balancing springs for barriers with VarioBoom with pendulum support