Translation of the original operating manual for the KTS SpeedTec mini
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Detach the motor from the coupling by pulling it to the left.
The belt can now be removed and replaced.
To measure the belt tension, use an acceptable measuring
instrument (e.g. Tummeter from Hilger & Kern) at the arrow
marked position.
Stretch the belt until the measuring instrument displays a
value of 135 Hz ± 10Hz.
After attaching the new belt, fit all parts previously removed.