5-5 Needle/looper front-to-back relationship
When the looper passes on the back side of the needle,
the clearance between the right needle and the looper
should be 0~0.05mm. Adjustment is made by
loosening screw A. The clearance between the left
needle and the looper should be 0.2mm.
Adjustment is made by loosening screw B on the looper
avoid eccentric. To increase the clearance, turn the
looper avoid eccentric toward the back side of the
machine. To decrease the clearance, turn the looper
avoid eccentric toward the front side of the machine.
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6
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ADJUSTING THE NEEDLE GUARDS
6-1 Position of the needle guard (rear)
■
Movable type (for models except BK
，
PBK)
When the point of the looper has reached the center of
the right needle, the distance from the point of the
right needle to line (a) on needle guard A should be
1mm (approximately 2mm on EHD).
Then the clearance between the needle and the needle
guard should be 0mm.
Adjustment is made by loosening screw B and turning
screw C to move the needle guard up or down and/or
front or back as required.
■
Fixed type (for BK
，
PBK)
When the needle bar is at the bottom of its stroke, the
distance from the point of the right needle to line (d)
on needle guard D should be approximately 3mm.
Then the clearance between the needle and the needle
guard should be 0mm.
Adjustment is made by loosening screws E.
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