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CONTENTS 

 
 

1. Adjusting the amount of front-to-back movement   

on the top feed dog 

1-1 To adjust amount of front-to-back movement (stitch length) 

on the top feed dog in relation to the main feed dog  ················· 1 

1-2 To adjust the clearance between the top feed dog 

and the main feed dog  ························································· 2 

1-3 To adjust the top feed dog pressure  ······································· 2 

2. Adjusting the top feed dog front to back 

································ 3

 

3. Adjust the top feed dog stroke 

·············································· 3

 

4. Adjusting the standard position of the top feed dog 

··············· 4

 

5. Adjusting the top feed dog timing 

········································· 6

 

 

 

Summary of Contents for UF Series

Page 1: ...INSTRUCTION Industrial Sewing Machines WX8803 UF RX9803 UF MZ1103 UF First published May 1999 No 990038...

Page 2: ...k to make sure the pulley cover safety cover etc are secured 3 Before adjusting cleaning threading the machine or replacing the needle be sure to turn off the power 4 Never start the machine with no o...

Page 3: ...he top feed dog in relation to the main feed dog 1 1 2 To adjust the clearance between the top feed dog and the main feed dog 2 1 3 To adjust the top feed dog pressure 2 2 Adjusting the top feed dog f...

Page 4: ...back in the rear fixed mode F FRONT The top feed dog moves front to back in the front fixed mode In the case of C or B Adjust the amount of front to back movement with symbols on scale and mark on ad...

Page 5: ...g and the main feed dog when plain stitching is performed Adjustment is made by loosening set screw on the top feed dog 1 3 To adjust the top feed dog pressure The pressure should be as light as possi...

Page 6: ...of each slot on the presser foot Adjustment is made by tightening set screw on front to back lever 3 ADJUST THE TOP FEED DOG STROKE To obtain a stroke of 4 7mm remove the cover loosen nut move rod pi...

Page 7: ...lyshifting during sewing 1 C CENTER The top feed dog moves in the divided in half mode This machine is factory set in this mode 2 B BACK The top feed dog moves in the rear fixed mode 3 F FRONT The top...

Page 8: ...ng outside eccentric set screw Align inscription B on middle eccentric with mark Y by turning only middle eccentric 90 clockwise Then tighten middle eccentric set screw B To change from C CENTER to F...

Page 9: ...ollow procedure No C Then change C CENTER to F FRONT follow procedure No B F To change from F FRONT to B BACK Change F FRONT to C CENTER first follow procedure No D Then change C CENTER to B BACK foll...

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