Brother HE-800A ￿￿-￿￿.Cutter does not return, ￿￿-￿￿.Seam is cut, ￿￿-￿￿.Cutter and upper thread scissors touch

16. TROUBLESHOOTING￿

￿

Cause		Check			Remedy		Page
Solenoid stopper		Nut			Check if the nut is loose, and tighten it securely.		-
		Cutter sensor position			￿Adjust the cutter sensor position.
					￿Check if the mounting screws are loose, and
					tighten them securely.
					4.5 ￿ 0.5 mm
					Cutter sensor
							-
						4017Q
Cutter bar guide		Smoothness	of	cutter	Adjust the cutter bar guide so that the	cutter	-
		operation			operates smoothly with no play.
￿￿-￿￿. 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	Adjust the cutter bar guide so that the	cutter	-
		operation			operates smoothly with no play.
￿￿-￿￿. Cutter and upper thread scissors touch
Cause		Check			Remedy		Page
Upper	thread	Check if the cam opens			Adjust the cam position.
scissors		the stop plate.			* If the feed mechanism operates when the cam has
					not opened the stop plate, the cutter will bump
					against the upper thread scissors.
							76

			4018Q
￿￿-￿￿. Seam is cut
Cause	Check	Remedy		Page
Length of knife	Length of knife	Set parameter number 02 to the same value as the		36
setting		length of the knife being used.
Knife space setting	Cutting of zigzag seam	￿Use parameter number 06 to set the knife X
		space.		36, 37
		￿Use parameter number 08 to set the knife X
		position alignment.
Cutter	Cutter play	Adjust the cutter bar guide so that	the cutter	-
		operates smoothly with no play.
	Cutter knife bending
		Use the cutter holder (option) to prevent the cutter
		knife from becoming bent.
				-
			4019Q

105 HE-800A