Adjustment
13 - 11
13.05.09 Needle bar rise, hook-to-needle clearance, needle height and needle guard
Requirement
In straight stitch position and with the needle bar 2.4 past BDC,
1. the hook point must be at the middle of the needle; the distance between the needle
and the hook point must be from 0.05 to 0.1 mm.
2. the top edge of the needle eye must be 1.0 mm below the hook point, and
3. the needle guard 4 must touch the needle lightly.
● Set the stitch length control to straight stitch position.
● Loosen the fastening screws of the bevel gear 1 and screws 2.
● Move the needle bar to BDC.
● In this position, slide the 2.4 mm thick feeler gauge of the needle bar rise gauge closely
under the needle bar bearing.
● Move adjustable clamp (part no. 08-880 137 00) against feeler gauge as far as possible
and screw it onto the needle bar.
● Remove the feeler gauge and turn the handwheel 3 in the direction of the arrow until the
adjustable clamp is resting on the needle bar.
● Unscrew the hook gib and remove the bobbin case.
1
2
2
Fig. 13 - 10
3
0.05 - 0.1 mm
4
6
7
1.0 mm
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