Adjustment
24
● 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.
1.06.18 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.
Fig. 1 - 20
4
2
0,05 - 0,1 mm
1
3
5
7
6
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