Dictator DICTAMAT 50 BK-Z Technical Manual page 8

Technical Manual

DICTAMAT 50 BK-Z

5) Placing and Fixing the

Kevlar Rope of the

Spring Rope Pulley

6) Tensioning of the

Revolving Toothed Belt

Page 02.060.08

C) Installation of the DICTAMAT 50 BK-Z - cont.

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.

Ill. 10a

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.

Internal hexagon

SW 5

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Attachment screw

Ill. 11a

Ill. 10b

Here no tooth may

be visible.

Ill. 11b

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