Pfaff 3822-2/42, Instruction Manual, Page: 89 / 152

Adjustment
13 - 21
49
-081
49-080
Fig. 13 - 19
7
5
6
3
1
2
4
0,1 mm
0,05 - 0,1 mm
13
.05.19
Eccentric hook shaft bearing and hook-to-needle clearance
Requirement
1. The slot in bearing 3 (see arrow) must be visible from below and there should be a
slight but still noticeable amount of backlash between gears 5 and 7 .
2. When the hook is resting lightly on the spinning disc 4 and the point of the hook is
positioned towards the centre of the needle, there must be a clearance of 0.05 – 0. 1
mm between the point of the hook and the needle groove.
3. Gear 5 should be in alignment with gear 7 .
●
Loosen screws 1 and 2 .
●
Adjust bearing 3 according to requirement 1 .
●
Bring hook into light contact with spinning disc 4 , adjust bearing 3 according to
requirement 2, without distorting it, and tighten screw 1 .
●
Adjust gear 5 (screws 6 ) according to requirement 3 .
Screw 2 remains loosened for the next adjustment.