Setting the safety snap-on coupling
Service Instructions 878-M PREMIUM - 03.0 - 10/2019 59
15.2 Setting the torque
Fig. 49: Setting the disengaging torque
Proper setting
The machine is set at the factory so that the torque is 8 Nm when the
marking point (6) is exactly above the setting slot (5) of the disk.
1. Tilt the machine head ( p. 15).
2. Loosen the screw (7).
3. Using the screwdriver, turn the disk on the setting slot (5) against the
marking point (6) so that 8 Nm is reached for the torque:
• Increase force: turn in the direction +
• Decrease force: turn in the direction –
4. Tighten the screw (7).
NOTICE
Property damage may occur!
If you change the torque, it could be that the coupling will not
disengage, although this would be required.
This could cause machine damage, e.g. in the event of thread
jamming.
Do NOT change the factory setting.
Make sure that the disengaging torque remains at 8 Nm.
(1) - Threaded pins
(2) - Left-hand adjusting ring
(3) - Safety snap-on coupling
(4) - Right-hand adjusting ring
(5) - Setting slot
(6) - Marking point
(7) - Screw
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