typical GC6760 SERIES - 10;10;1 Pre-adjusting Roller Lever; 10;10;2 Pre-adjusting Cam

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TYPICAL GC6760 Series
Illustration 1
Illustration 1
Illustration 2
Illustration 2
10 // ADJUSTMENTS
10/10 Adjusting the thread cutter
10/10/1 Pre-adjusting the roller lever
10/10/2 Pre-adjusting the cam
The distance between the roller and the shaft must be about
3 mm when the lever (1) (Illustration 1) is touching the stop (2)
at position (A) (Illustration 2).
1. Push the lever (1) to the stop (2), loosen screw (3), turn
the roller lever until a distance of 3 mm between roller
and shaft is achieved. (Make sure that the roller lever and
shaft are under spring pressure)
2. Tighten screw (3) in this position.
The cam (1) must have a distance of 0.8 to 1.0 mm to the roller
(2) when the tread cutter is in inoperative position. The first
screw (3) of the cam (1) must be opposite the roller (2) when
the needle bar is on the upper turning point.
1. Loosen screw (3)
2. Move cam (1) to the side until a distance of 0.8 to 1 mm is
achieved.
3. Turn the cam (1) until the first screw (3) is opposite the
roller (2) when the needle bar is on the upper turning point.
(Caution: Point 2 mustn´t be touched)
4. Tighten screws (3)
0.8 - 1.0 mm