Brother International HE-800A Instruction Manual - English - Page 113

Cutter does not return, Cutter and upper thread scissors touch, Seam is cut

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16. TROUBLESHOOTING Cause Solenoid stopper Check Nut Cutter sensor position Remedy Check if the nut is loose, and tighten it securely. ࡮Adjust the cutter sensor position. ࡮ Check if the mounting screws are loose, and tighten them securely. 4.5 ± 0.5 mm Cutter sensor Page - - Cutter bar guide 4017Q Smoothness of cutter Adjust the cutter bar guide so that the cutter operation operates smoothly with no play. - Cutter does not return Cause Cutter Sticks in material Cutter bar guide Check Cutter blade Needle plate Smoothness of operation cutter Remedy If blade is worn or chipped, sharpen it or replace it. Replace with the special needle plate (optional). Adjust the cutter bar guide so that the cutter operates smoothly with no play. Page 4 - Cutter and upper thread scissors touch Cause Upper scissors thread Check Check if the cam opens the stop plate. Remedy Adjust the cam position. * If the feed mechanism operates when the cam has not opened the stop plate, the cutter will bump against the upper thread scissors. Page 76 Seam is cut Cause Length of knife setting Knife space setting Check Length of knife Cutting of zigzag seam Cutter Cutter play Cutter knife bending 4018Q Remedy Set parameter number 02 to the same value as the length of the knife being used. ࡮Use parameter number 06 to set the knife X space. ࡮Use parameter number 08 to set the knife X position alignment. Adjust the cutter bar guide so that the cutter operates smoothly with no play. Use the cutter holder (option) to prevent the cutter knife from becoming bent. Page 36 36, 37 - - 4019Q 105 HE-800A

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HE-800A
16. TROUBLESHOOTING
105
Cause
Check
Remedy
Page
Nut
Check if the nut is loose, and tighten it securely.
-
Solenoid stopper
Cutter sensor position
Adjust the cutter sensor position.
Check if the mounting screws are loose, and
tighten them securely.
-
Cutter bar guide
Smoothness
of
cutter
operation
Adjust the cutter bar guide so that the cutter
operates smoothly with no play.
-
１６
-
１９
. Cutter does not return
Cause
Check
Remedy
Page
Cutter
Cutter blade
If blade is worn or chipped, sharpen it or replace it.
-
Sticks in material
Needle plate
Replace with the special needle plate (optional).
4
Cutter bar guide
Smoothness
of
cutter
operation
Adjust the cutter bar guide so that the cutter
operates smoothly with no play.
-
１６
-
２０
. Cutter and upper thread scissors touch
Cause
Check
Remedy
Page
Upper
thread
scissors
Check if the cam opens
the stop plate.
Adjust the cam position.
* If the feed mechanism operates when the cam has
not opened the stop plate, the cutter will bump
against the upper thread
scissors
.
76
１６
-
２１
. Seam is cut
Cause
Check
Remedy
Page
Length
of
knife
setting
Length of knife
Set parameter number 02 to the same value as the
length of the knife being used.
36
Knife space setting
Cutting of zigzag seam
Use parameter number 06 to set the knife X
space.
Use parameter number 08 to set the knife X
position alignment.
36, 37
Cutter play
Adjust the cutter bar guide so that the cutter
operates smoothly with no play.
-
Cutter
Cutter knife bending
Use the cutter holder (option) to prevent the cutter
knife from becoming bent.
-
Cutter sensor
4017Q
4018Q
4.5
±
0.5 mm
4019Q