22
a
b
Adjusting the needle height
CA
CA
UTION
UTION
Always turn off the power, unplug the machine and then well-
qualified technicians should adjust the needle height.
Adjust distance
a
from the point of the left needle to the top surface
of the needle plate when the needle is at the top of its stroke.
The distance varies according to the machine being used.
Refer to the table of adjustment dimensions (see page 32).
1.
Turn handwheel
1
and align mark
A
on the machine with
mark
P
○
on the handweel to bring the needle bar to the top of
its stroke.
2.
Loosen screw
2
. Adjust the needle height by moving needle
holder
3
up or down.
●
Adjust the relationship between each needle and needle drop
hole so that clearance
b
is equal after the needle height
adjustment (see the illustration). Then tighten screw
2
.
A
1
P
2
3
Summary of Contents for W1500 series
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Page 16: ...13 For more stretchable thread 4 Threading diagram...
Page 37: ...34...
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