Needle Does Not Zigzag Or Noise Occurs When Needle Zigzags; Sewing Machine Stops During Sewing; Upper Shaft Does Not Rotate As Far As The Needle Up Stop Position; Operation Panel Display Freezes And Operation Is Not Possible - Brother HE-800C Instruction Manual
Electronic direct drive lockstitch button holer
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11. TROUBLESHOOTING
11-27. Needle does not zigzag or noise occurs when needle zigzags
Items with a "*" in the "Page" column should only be handled by a qualified technician.
Cause
Stopper
11-28. Sewing machine stops during sewing
Items with a "*" in the "Page" column should only be handled by a qualified technician.
Cause
Thread breakage
detector
Threading
Error [E301]
11-29. Upper shaft does not rotate as far as the needle up stop position
Items with a "*" in the "Page" column should only be handled by a qualified technician.
Cause
Thread retainer and
rotary hook are
touching.
11-30. Operation panel display freezes and operation is not possible
Items with a "*" in the "Page" column should only be handled by a qualified technician.
Cause
Poor
connection
inside control box.
97
Check
Stopper position
Check
Thread breakage detector
position
Upper thread threading
Upper
thread
trimmer
operation
Check
Thread trimmer mechanism
position
Check
P.C. board cord connections
Remedy
Adjust the stopper position.
Remedy
Adjust the thread breakage detector position.
* If the detector is not adjusted, sewing may stop even
when the thread is not broken.
Pass the thread correctly through the thread guide.
Move the work clamp up and down and check that it
moves smoothly.
Remedy
1.
Turn the machine pulley backward to set the
needle bar to the needle up position.
2.
Push the thread driving arm in the direction of the
arrow to set the thread trimming mechanism to the
home position.
Remedy
・ Check if there are any problems with the connection
and contacts of connector P5 on the main P.C.
board.
・ Check if there are any problems with the connection
and contacts of connector P2 and operation panel
connector P3 on the motor P.C. board.
HE-800C
Thread driving arm
4109M
10, 75*
Page
*
Page
*
22
*
Page
*
Page
75*
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