15
The arm shaft circuit
The zig-zag movement
of the needle
Requirements
The side movement of the needle should not
commenc until the needle tip is 5,5 mm above
the level of the stitch plate.
Check
First check the height setting of the needle.
See page 22.
Turn on the main switch. Set the machine at the
maximum stitch width for zig-zag. Remove the
sole from the holder and place it on the stitch
plate. Slowly turn the handwheel until the needle
rises, observing the needle. Stop turning the
handwheel just as the needle has moved
sideways. Test with the sole. The needle tip
should be able to pass just over the highest
part of the sole.
Adjustment
Loosen the screw 7/44 in the screen and turn
the screen until the correct needle clearance is
obtained. The clearance will increase if the
screen is turned towards the working direction
of the arm shaft.
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