Brother XM3700 Operating Guide

APPENDIX   

51

▲

The thread tension is incorrect.

Adjust the tension of the upper thread.

29

You have not threaded the upper thread 

properly.

Correct the upper threading.

19

You have not used the right combination of 

fabric, thread and needle.

Choose a thread and needle that are 

appropriate for the type of fabric.

24

The needle is bent or blunt.

Replace the needle.

7

The needle is incorrectly installed.

Correctly install the needle.

7

Dust has accumulated under the needle 

plate or in the bobbin case.

Remove the needle plate and clean the 

plate and the bobbin case.

47

The needle has not been raised to the 

correct position.

Raise the needle by turning the 

handwheel toward you 

(counterclockwise) so that the mark on 

the wheel points up.

21

You have not inserted the needle properly.

Insert the needle properly.

7

The presser foot that you are using is not 

correct for the type of stitch.

Attach the presser foot that is correct 

for the type of stitch that you want to 

sew.

–

The thread tension is incorrect.

Adjust the tension of the upper thread.

29

The thread is tangled.

Remove the tangled thread. If the 
thread is tangled in the bobbin case, 
clean the bobbin case.

47

The stitch is too fine.

Lengthen the stitch length.

–

The darning plate is fitted on the needle 

plate.

Remove the darning plate.

–

You have not used the right combination of 

fabric, thread and needle.

Choose a thread and needle that are 

appropriate for the type of fabric.

24

The thread is tangled, for example, in the 

race.

Remove the tangle thread. If the thread 
is tangled in the race, clean the race.

47

The presser foot you are using is not 

appropriate for the type of stitch that you 

want to sew.

Attach the presser foot that is correct 
for the type of stitch that you want to 
sew.

40