JUKI LZ-2290C/X73257, Instruction Manual And Parts List, Page: 16 / 44

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9. Turning the sensor
①
Raise the main body of sewing machine and turn
ON the power to the sewing machine. Press the
ready key (needle bar stop position button
)
on the operation panel of the sewing machine.
②
Thread the sewing machine head.
* Refer to the Instruction Manual for the LZ-2290C
Series of sewing machine for how to thread the
sewing machine head.
③ Check to make sure that the operation plate of
the sensor head asm. is not lowered. Then, tilt
the main body of sewing machine.
④ Place the jig on the under cover.
* Put the jig at a position to allow you to observe
the bobbin case from the mirror of the jig.
⑤ Set the bobbin thread.
* Refer to the Instruction Manual for the LZ-2290C
Series of sewing machine for how to set the
bobbin thread.
1. If the main body of sewing machine is
tilted while the operation plate of the
sensor head asm. is lowered, the sen-
sor head asm. will interfere with the
under cover to cause false detection
(deviation of sensor position).
2. If the sensor head asm. interferes with
the under cover, check the sensor po-
sition. If the sensor has moved out of
position, re-adjust the sensor position
correctly. (Refer to "8. Adjusting the
sensor position" p.11 .)
1. Do not raise the main body of sewing
machine with the jig placed on the
under cover.
2. In the case you have already carried
out the procedure described in "8.
Adjusting the sensor position" p.11 ,
you should start this procedure for
tuning the sensor from ② . ( ① is not
necessary.)
WARNING
1. Be sure to turn OFF the power to the sewing machine for the sake of safety before assembling the sen-
sor amplifier components.
2. Be sure to firmly tighten the screws to prevent them from loosening by vibration when the sewing ma-
chine is in operation.
3. Jig is separately available. The gauge set (part number: 40250040) for the SD-29 should be purchased
separately.
4. Be sure to turn OFF the DPC function. (Refer to "10. DPC function" p.16 .)