Upper And Lower Toothed Belt Wheel / Toothed Belt; Position Of The Upper Toothed Belt Wheel - Duerkopp Adler 550-867 Service Instructions Manual

2.2

Upper and lower toothed belt wheel / toothed belt

2.2.1

Position of the upper toothed belt wheel

4 3 2
Caution: Risk of injury!
Turn off the main switch.
Check and set the position of the upper toothed belt wheel only when
the machine is switched off.
Standard checking
The toothed belt wheel 2 is fastened on the arm shaft 4 with two
threaded pins. The threaded pins must sit on the flat spot 1.
The distance between the toothed belt wheel 2 and the bobbin winder
wheel 3 must amount to 0.8 mm when the bobbin winder is switched
off.
–
Check distance between toothed belt wheel 2 and bobbin winder
wheel 3 by means of a thickness gauge.
Correction
–
Loosen the threaded pins in the toothed belt wheel.
–
Turn the toothed belt wheel, until the threaded pins sit on the flat
spot 1 of the arm shaft 4.
–
Set lateral distance of 0.8 mm between the toothed belt wheel 2
and the bobbin winder wheel 3 by using a thickness gauge.
–
Tighten the threaded pins in the toothed belt wheel.
1
3 2
7