SunStar KM-1957-7 User Manual page 5

Post bed, wheel feed with driven roller foot, 1-needle needle feed lock stitch machine with automatic thread trimmer / post bed, wheel feed with driven roller foot, 2-needle straight lock stitch machine with automatic thread trimmer

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Table of Contents

7. Inspecting and checking ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 29

7-1. Daily Cleaning.......................................................................................... 29

8. Maintenance and repair ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 30

8-1. Adjusting the roller presser foot ..................................................................... 30

8-2. Adjusting the feed cam................................................................................. 32

8-3. Adjusting the feed dog height ........................................................................ 32

8-4. Adjusting the motion direction of feed dog ......................................................... 33

8-5. Adjusting the needle and hook timing ............................................................... 34

8-6. Adjusting the space between upper face of hook stopper and upper face of needle plate groove ......... 35

8-7. Adjusting the space between hook and opener ...................................................... 35

8-8. How to adjust the thread trimmer device ............................................................ 36

8-9. How to adjust the gear box (KM-1967-7)............................................................ 39

8-10. How to exchange the stitch length gauge set ...................................................... 40

9. Pneumatic wiring ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 41

10. Causes of troubles and troubleshooting ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 42

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