ART'S MACHINE TROUBLE CHECK LIST 

TROUBLE :Upper thread keeps breaking:
 

This could be your trouble :

Do this :

1. Top tension is too tight .                                                     Loosen tension 1 turn .
2. Machine is improperly threaded .                                      Check threading .
3. Thread twisted on guide post .                                            Check threading .
4. Thread jumped out of tension .                                           Check threading .
5. Take-up spring bent or broken .                                         Check action of spring .
6. Thread jumped out of take-up lever .                                 Check threading .
7. Needle bent or burred .                                                       Try a new needle .
8. Bad spool or cone of thread .                                              Try a new spool or cone .

TROUBLE : Lower thread keeps breaking :
.

This could be your trouble :

Do this :

1. Bobbin tension spring too tight .                                        Loosen tension slightly .
2. Bobbin thread wrong .                                                        Check threading .
3. Bobbin wound too tight or uneven .                                   Try another bobbin .
4. Lint or thread in the bobbin case .                                     Clean inside of case .
5. Lint or thread inside of hook .                                            Clean inside of hook .
6. Bobbin case nicked , bent  or burred .                                Check bobbin case .

TROUBLE : Machine started skipping stitches :
 

This could be your trouble :

Do this :

1. Needle bent or burred .                                                     Change needle .
2. Needle set in crooked .                                                     Check position of needle .
3. Thread jumped out of take-up lever .                               Check threading .
4. Thread jumped off take-up spring .                                   Check threading .

TROUBLE : Stitches showing loops :
 

This could be your trouble :

Do this :

1. Forming loops top of cloth .                                               Tighten bobbin tension or loosen top tension .
2. Forming loops on bottom of cloth .                                    Tighten top tension .
3. Bobbin placed in case incorrectly .                                    Remove and replace .
4. Bobbin thread slipped from under tension .                      Check threading of bobbin case .
5. Lint or thread in top tension .                                            Clean between disc .