Positioning The Toothed Belt Wheels - Dürkopp Adler M-TYPE H867 Service Manual

Positioning the toothed belt wheels

7 Positioning the toothed belt wheels
The two toothed belt wheels must be positioned one on top of the other
such that the toothed belt can run correctly. In short arm machines, the
winder wheel is directly next to the upper toothed belt wheel and deter-
mines its alignment. In long arm machines, the winder wheel is fastened
farther away in the center of the arm.
Sequence
Always check the position of the other toothed belt wheel after making a
change on a toothed belt wheel.
Differences between the short arm and long arm machines
Differences in the setting sequence are caused by the differing position of
the winder wheel.
In long arm machines, the winder wheel on the driver wheel is aligned in

the center of the arm ( Section 15 Winder, page 65) and is irrelevant for
the toothed belt wheels.
Therefore, in long arm machines, it does not matter which toothed belt
wheel you check first.
Short arm In short arm machines, the position of the upper toothed belt wheel is
machines defined by the distance to the winder wheel.
This is why you have to align the upper toothed belt wheel on the winder
wheel first in short arm machines. After that, align the lower toothed belt
wheel such that the toothed belt runs correctly over both wheels.
20 Service manual H867 Version 00.0 - 08/2013