Pfaff 491 - Re-Engage Safety Coupling

Adjustment
11 - 34
11.04.30 Re-engage safety coupling
The coupling 1 is set by the manufacturer. When the thread jams, the coupling 1
disengages in order to avoid damage to the hooks.
A description of how to engage the coupling follows.
Fig. 11 - 30
● Remove jammed thread.
● Hold coupling 1 with screw 2 and turn the balance wheel, until you feel coupling 1 snap
back into place again.
1
2