Hook Driver - Pfaff 3371-1 series Adjustment Manual

Adjustment
14

Hook driver

.08
14 - 7
Requirement
1. When the balance wheel is turned, the machine should not bind.
2. The play of catch 7 should be less than 0.1 mm.
7
Fig. 14 - 04
Remove the hook.
Loosen screws 1, 2 and 3 (remove motor 4).
Move the eccentric shaft 5 in accordance with requirement 1 and twist it in accordance
with requirement 2.
Tighten screws 1 and 3.
Move adjustment ring 6 against the metal edge and tighten screw 2.
Insert the hook.
If catch 7 has too much play, the running noise of the machine increases. Too
little play may cause the machine to jam.
3 6
5 4
1
2