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1) Adjusting the Closing
Force on the Spring
Rope Pulley
Tensioning
screw
"front"
Ill. 14b
Tensioning
screw
"rear"
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E) Adjustment of the Closing Force and Speed
Open the door completely (max. opening 1.5 m). There have to be
left at least 1.5 windings of rope on the spring rope pulley.
The spring is pretensioned by the tensioning screw SW 17 that is ac-
cessible from both sides in the direction of the arrows "spannen" =
tensioning (ill. 14a - 14c). Maximum pretension: 2, 4 respectively 5
revolutions depending on the used spring rope pulley (see table below)!
Releasing: in case the spring had been tensioned too much, the preten-
sion can again be reduced by turning the tensioning screw against the
direction of the arrow.
DICTAMAT 50 BK,
25 N
Ill. 14a
Travel
1800 mm
1650 mm
1350 mm
1050 mm
700 mm
400 mm
The diagram below (ill. 15) indicates the closing force of the spring rope
pulley in relation to the pretension and the door width.
Ill. 14c
100
90
80
70
60
50
40
30
20
10
Rev.
Travel
0,5
1500 mm
1
1350 mm
2
1050 mm
3
730 mm
4
400 mm
5
Remaining travel m
2,00 1,80 1,65
1,35
1,65 1,50 1,35
1,05
1,15 1,00 0,85
0,55
0
0
0,5
1
2
Pretension/ Revolutions
Technical Manual
DICTAMAT 50 BK-Z
50 N
Rev.
Travel
0,5
1000 mm
1
850 mm
2
550 mm
3
4
1,05
0,70
0,40
0,70
0,40
0,10 0
0,25
0
80 N
3
4
5
80 N
Rev.
0,5
1
2
0,10 0
25 N
50 N
6
6, ,5
Ill. 15
Page 02.090.09
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