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(5) Adjusting the tension lever (Exclusive for MB-377)
When the machine is in the stop-motion state, the distance between the end surface of the tension
guide and the tip of the tension lever should be 8 to 10 mm.
Be sure at the time of starting (push the pedal once when the power is OFF) that the hole of the tension
guide is located within the range of the slot of the tension lever.
(6) Adjusting the speed slowing friction plate (MB-377)
When the roller of the stitch adjusting arm rides over the outmost periphery of the stitch adjusting cam
(at the time of starting), the clearance between the speed slowing friction plate and the speed slowing
friction wheel should be 1 to 1.5 mm.
Standard Adjustment
1
24
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