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Page 02.060.08
Technical Manual
DICTAMAT 50 BK-Z
O
C) Installation of the DICTAMAT 50 BK-Z
- cont.
Before finally tensioning the revolving toothed belt, you have to check
again whether the toothed belt is perfectly aligned. If necessary, once
more align the LD 50 radial damper, the idler pulley and the door actuator
by means of the oblong holes.
For tensioning the toothed belt the belt tensioner may be open or closed.
But you have to make sure that the attachment screw (see ill. 11a) has
been removed before.
The toothed belt is tensioned by means of the internal hexagon SW 5.
Turn it until the toothed belt has the desired tension. The tension shouldn't
be either too soft or too strong. With a too soft tension the toothed belt
still sags. Is it tensioned too much, this causes high friction which will
reduce the closing force. When you have achieved the desired tension,
make sure no tooth is visible in the hole (see ill. 11b). Now screw in the
attachment screw.
6) Tensioning of the
Revolving Toothed Belt
Depending on the installation (ill. 3a and 3b), the Kevlar rope is either
directly fixed to the door or a wheel hanger, as shown in ill.10a or 10b.
To reduce friction on the wheel hanger, please make sure that the rope
of the spring rope pulley always pulls straight and the wheel hangers
don't become wedged. The optimum would be if the rope was aligned
with the X axis of the door.
5) Placing and Fixing the
Kevlar Rope of the
Spring Rope Pulley
Ill. 10a
Ill. 10b
Ill. 11a
Ill. 11b
Attachment screw
Here no tooth may
be visible.
Internal hexagon
SW 5
