2020
2121
2222
2323
8. Maintenance (Fig. 20~25)
For protect the sewing machine and keep its good
performance, the machine must be maintained every
day, if the machine is left unused for a long time,
please maintain it as following sequence
1. Lift the presser foot;
2. Loosen the screw and uninstall the needle
plate ;
3. Clean the dust on the feed dog with a tooth
brush;
4. Fix the needle plate by screw .
5. Turn the hand wheel slowly to make the needle
enter into the center of the hole of needle plate
exactly;
If the needle cannot enter into the center of the
hole of needle plate,
Confirm if the needle bends
Loosen the screw and adjust the needle plate
again.
6. Turn the hand wheel to lift the needle up to the
needle plate and confirm if the pinpoint has been
damaged, if yes, please change a new one.
7. Lay down the sewing machine
8. Uninstall the bobbin case ;
9. Clean the dust on the hook and check if it has
been damaged;
10. Pull the bobbin out of the bobbin case and
clean the bobbin case with cloth;
11. Put the bobbin in the bobbin case and put
the bobbin case in the hook.
12. Open the face plate periodically
13. Clean the fiber deposits on the needle bar
and needle bar bushing with a brush or cloth;
14. Fix the face plate and tighten the screw
,
If dont t clean periodically, it may cause the
possibility of oil exudation or oil leakage or polluting
the fabric.
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