Setting the safety snap-on coupling
58 Service Instructions 878-M PREMIUM - 03.0 - 10/2019
15 Setting the safety snap-on coupling
The safety snap-on coupling disengages in the event of the thread jamming
and thus prevents the hook from being misadjusted or damaged.
15.1 Attaching the safety snap-on coupling
Fig. 48: Attaching the safety snap-on coupling
Proper setting
The 4 threaded pins (1) on the two adjusting rings next to the safety snap-on
coupling (3) must be parallel to one another. After the safety snap-on coupling
has disengaged, they are no longer parallel.
1. Tilt the machine head ( p. 15).
2. Turn the left adjusting ring (2) such that the threaded pins (1) are parallel
to one another.
The safety snap-on coupling latches into place.
WARNING
Risk of injury from moving parts!
Crushing possible.
Switch off the machine before you set the safety
snap-on coupling.
(1) - Threaded pins
(2) - Left-hand adjusting ring
(3) - Safety snap-on coupling
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