Operating instructions DPK 6207…
© BA_DPK_EN_Rev06-2010.docx Page 11 of 18
5.2 Drag handle adjustment
Caution! Danger of injury!
Ensure before starting work that the drive is switched off or disconnected. Make sure that the
system is switched off and secured against inadvertent activation before starting work. Inform
the control room. Only open the inspection apertures when the system and drive are
switched off.
Open the inspection hatches and make sure that the double shuttle valve is free of foreign bodies and
encrustation.
Turn the cam disk so that both flaps are completely closed.
Loosen the lock nuts of the cup springs and adjust the drag handles so that the respective rollers are just
about against the cam disk or are max. 3 mm away from the cam disk.
Tighten the first fixing nut of the cup springs and then loosen it again by ¼ of a revolution. Lock this
setting using the lock nut.
Check the setting by turning the cam disk several times. The drag handle is set correctly if the flap opens
and closes fully and the limit switches are properly actuated.
Double shuttle valve with both flaps in "CLOSED" position:
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