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5
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Remove the face cover and remove dust collected
around the secton
A
, clearance n the movng part of
the needle bar frame.
(Remove dust once every three months.)
WarNING :
turn oFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine
1-11. removing dust from the face part of the machine head
A
the necessary needle rocking amount
at the bar-tacking section cannot be
obtained due to the malfunction of the
needle bar frame unless dust is re-
moved. In addition, this relates to the
slip of the needle bar rocking crank.
1-12. Cleaning the filter in the electrical box
Clean up the filter installed on the front face of the elec
-
trcal box wth a vacuum or an ar gun.
WarNING :
to avoid possible accidents caused by electric shock, check to be sure to turn oFF the power switch and
the power switch for maintenance, and to draw out the power plug from the plug socket before starting
the work.
WarNING :
Negligence of cleaning may give the trouble
and damage to the electrical components.
Be sure to clean the fan filter in the electrical box once a week or more.