Eccentric Hook Shaft Bearing And Hook-To-Needle Clearance - Pfaff 487 Adjustment Manual

Adjustment
1

Eccentric hook shaft bearing and hook-to-needle clearance

.06.18
● 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
● Adjust gear 5 (screws 6) according to requirement 3.
24
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.
3
6
Fig. 1 - 20
requirement 2, without distorting it, and tighten screw 1.
7
5
1
0,05 - 0,1 mm
4
2