Final Adjustment Of Needle Rise, Needle Height, And Bobbin Case Position Finger - Pfaff 487 Service Manual

2.

Final adjustment of needle rise, needle height, and bobbin case position finger

23
Requirement
With the stitch length set at "0" and the needle bar in position 1.8 mm past b.d.c.
(adjustment hole "4")
1. the hook point must be at the needle centre and the top of the needle eye 0.8 mm
below the hook point, and
2. there must be a clearance of 0.5 mm between position stop 3 3 3 3 3 and the inside of the
position slot.
0,8 mm
0,5 mm
Fig. 2 - 21
Adjust the sewing hook (screws 1), without shifting it, and needle bar (screws 2),
without turning it, according to Requirement 1.
Set the dog of position stop 3 in the slot of the hook base, position it according to
Requirement 2 and secure it in place.
4
3
Adjustment
2
1
2 - 22