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Cleaning the oil lter
1) Loosen fastening plate
on the back-ow side.
Remove oil lter joint (asm.)
on the back-ow
side.
2) Clean up lters
,
and
and oil reservoir
of the oil pan.
Be sure to clean up the oil reservoir of the
oil pan and the lter case approximately
once a month.
If the lter is clogged with soil, lubrication
fails resulting in trouble.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
7-2. Cleaning
Cleaning the stitch skipping detection
sensor, bobbin thread remaining amount
detection sensor and cover sensor
If the sensor errors occur frequently, clean up the
encircled portions in the gure with an air blower.
If the sensor error still occurs after the cleaning with
an air blower, carefully wipe the dirt off the sensors
with a cotton swab, or the like.
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