Long thread cutter
Service Instructions 867-M PREMIUM - 03.0 - 05/2017 85
4. Tighten the screw on the adjusting ring (5).
5. Tighten the screw (8) ( p. 85) and ensure that the knife carrier has
no axial play.
17.2 Setting the cutoff curve
Fig. 71: Setting the cutoff curve
Proper setting
The control cam (4) makes direct contact with the clamping ring (2).
The distance between the widest extent (6) of the control cam (4) and the
roller (1) is 0.1 mm at most.
In rest position, the tip of the thread-pulling knife is right next to the tip of
the counter blade.
To set the cutoff curve:
1. Tilt the machine head ( p. 16).
2. Open the throat plate slide ( p. 20)
3. Loosen the threaded pins (3) on the clamping ring (2).
4. Push the clamping ring (2) as far as it will go to the left.
5. Tighten all 4 threaded pins (3) on the clamping ring (2).
Important
Screw the 4 threaded pins (3) tightly in place on the clamping ring (2)
before you loosen the threaded pins (5). The clamping ring (2) and control
cam (4) are both mutually used as a stop and should not be loosened at
the same time.
6. Loosen the threaded pins (5).
7. Press the actuating lever (7) against the solenoid (9).
(1) - Roller
(2) - Clamping ring
(3) - Threaded pins
(4) - Control cam
(5) - Threaded pins
(6) - Widest extent
(7) - Actuating lever
(8) - Clamping screw
(9) - Solenoid
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