Synchronizer - Pfaff 3339 Instruction Manual

Adjustment
11.

Synchronizer

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Requirement
The machine must position itself at the t.d.c. of the take up lever at every stop.
Remove the needle.
Screw the synchronizer on.
Switch the machine on and allow it to position itself.
Loosen the synchronizer screw and hold the synchronizer in position.
Turn the V-belt wheel until the take up lever is at its t.d.c.
Tighten the synchronizer.
Allow the machine to position itself once again and carry out a check in accordance with
the requirement.