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6-1.
Main motor does not stop
6-2.
Needle stop position (UP/DOWN) is incorrect
Adjust
R.P.M.
at the lowest speed by turmng VR1
(Refer to page 39)
Adjust needle stop
speed.
(Refter to page 41)
Exchange main circuit board unets
Turn balance wheel by
Ad1ust the lowest
speed.
(Refer to page 39)
Adjust needle stop
speed.
Exchange mam c1rcuit board unets.
.
Yes
hand.
Too much to
AdJUSI mechamcal
p
ortoons.
Adjust the pos1tion of
(Refer to page 41)
- 71 -
Finish
rque.
N.P.
shutter. (Refer to page 34)
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