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22. Adjusting the timing of feed
(Fig. 19)
CDStandard position:
When the feed· dog appears from the needle plate and
begins to feed, the needle should move downward, and
is nears the needle plate and aligns with the hole on the
plate. Please adjust the position of feed cam and rock
shaft crank to adjust the timing of feed.
®
Install the feed cam
At first, adjust the stitch length to zero, and open the up-
per cover, tum the balance wheel counter clockwise by
right hand; divide two screw of the feed cam equally as
the oil hold is bisector.
23. Adjusting the timing of needle and
hook. (Fig. 20)
The positon between hook and needle could be set as
following order. Lift the needle up to 2.5mm from its
lowest position. The tip of hook should be straight to the
needle center, there is about 1.6mm distance between
the tip of hook and upside of needle hole. If the position
is wrong, please loosen the screw A, move the needle
bar up and down until its on proper position. Then tigh-
ten the screw. There is distance O-O.OSmm between the
tip of hook and needle.
-9-
2.1mm
•
1.9mm
O.05mm
1
A
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