Cutter Does Not Return; Cutter And Upper Thread Scissors Touch; Seam Is Cut - Brother HE-800A User Manual

16. TROUBLESHOOTING
Cause
Solenoid stopper Nut
Cutter sensor position
Cutter bar guide Smoothness
operation
-

. Cutter does not return

Cause
Cutter Cutter blade
Sticks in material Needle plate
Cutter bar guide Smoothness
operation
-

. Cutter and upper thread scissors touch

Cause
Upper thread Check if the cam opens
scissors the stop plate.
-

. Seam is cut

Cause
Length of knife Length of knife
setting
Knife space setting Cutting of zigzag seam
Cutter Cutter play
Cutter knife bending
105
Check
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.
of cutter Adjust the cutter bar guide so that the cutter
operates smoothly with no play.
Check
If blade is worn or chipped, sharpen it or replace it.
Replace with the special needle plate (optional).
of cutter Adjust the cutter bar guide so that the cutter
operates smoothly with no play.
Check
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
Check
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.
HE-800A
Remedy
4.5 r 0.5 mm
Cutter sensor
4017Q
Remedy
Remedy
scissors
.
4018Q
Remedy
4019Q
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