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MFC
Standard Adjustment
7) Adjusting amount of the looper-avoid
™ When there is only one adjustment line in the sewing machine, adjust so that the looper path
shifting cam is placed 8 mm from the adjustment eccentric line.
(Measurement of 8 mm should be performed on the top surface of the looper path shifting cam.)
™ When the looper moves to the right, the tip of the left needle contacts the back of the looper at the
position of 2/3 from the upper side of the looper.
(Adjust when the needle is replaced with an excessively different sized needle. Check that the clearance
between the looper and the needle is correct and the needle tip contacts the back of the looper at the
position of 2/3 from the upper side of the looper.)
8 mm
Adjustment line
Adjustment
eccentric line
Looper path
shifting cam
Setscrew
Logitudinal moving
amount of looper
(Ref. 1.54 mm)
Left needle
Right needle
Locus of looper
Left needle
Needle tip
Looper
2/3
1/3
New type
From the library of: Diamond Needle Corp
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