Brother DB-2610 Manual De Instrucciones página 114

14. TROUBLESHOOTING
Problem
5. Uneven stitch length
6. The hole made by the needle
is too wide.
7. The chaining-off stitch is not
formed properly.
8. The material is greatly puck-
ered around the seam.
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•
Is the presser foot pressure too weak?
Adjust the presser foot pressure.
(If using the feeding presser foot, refer to page 82.)
•
Are the heights of the feed dog(s) too low?
Adjust the heights of the feed dog(s).
•
Is the puller pressure too weak? (Machines with puller)
Adjust the puller pressure.
•
Is the needle blunt?
Replace with a new needle.
•
Is the needle too thick for the material?
Replace the needle with a needle that is one rank thinner.
•
Is the thread tension too strong or too weak?
Adjust the thread tension.
•
Is the needle tip bent or broken?
Replace the needle if it is bent or broken.
•
Are the needle and looper installed in the correct positions?
Adjust the height of the needle and the position of the looper.
•
Are the positions of each of the thread paths correct?
Adjust the positions of the thread paths while referring to "Adjusting
the thread tension".
•
Is the position of the rear needle guard correct?
Adjust the position of the rear needle guard.
•
Is the tip of the looper broken?
If the looper is damaged, smooth it with an oiled grindstone or re-
place it.
•
Is the presser foot pressure too weak?
Adjust the presser foot pressure.
(If using the feeding presser foot, refer to page 82.)
•
Is the clearance between the puller and the slide plate too large?
(Machines with puller)
Adjust the puller position.
•
Is the needle too thick?
Select a needle which is suitable for the material and the thread.
•
Is the presser foot pressure too strong or too weak?
Adjust the presser foot pressure to an appropriate pressure.
(If using the feeding presser foot, refer to page 82.)
•
Is the thread tension too strong?
Adjust the thread tension.
•
Are the heights of the feed dog(s) appropriate?
Adjust the heights of the feed dog(s).
•
Is the amount of differential feed appropriate? (-00D1 specifications)
Adjust the differential feed ratio.
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Possible cause Page
51
69
77
29
29
41 - 44
29
59·60·62
41 - 50
63
60
51
81
29
51
41 - 44
69
36
DB-2610