Feeding System; Adjustment Of The Flat-Toothed Belt Tension - Pfaff expression 2014 Service Manual

Feeding system

1. Adjustment of the flat-toothed belt tension

Requirement:
The flat-toothed belt must be so taut that the sewing hook has no play in its rotating direction, but it must
be possible to turn the machine easily.
Adjustment:
Loosen screw 1 (fig. 1).
Re-position tensioning roller 2 with a screwdriver accordingly.
Tighten screw 1.
Check:
Check adjustment according to "Requirement".
Press lightly against middle of flat-toothed belt.
The belt must move 1 to 3 mm forwards.
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