Lukas HT 90 - Procedure; Retraction of the Piston

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6.4 Procedure
WARNING / CAUTION / ATTENTION!
- Ifthedeviceslipso󰀨metalorstone,thereisariskofsparks.
- Thedooropenermustbeheldrmlytopreventinjurybyfallingdownwhen
thedoorisforcedopen.
- Thereisariskofinjuryintheareaofdoorsthatspringopenorareforcedopen.
Whenattachingthedevice,itmustbepressedrmlyandasdeeplyaspossibleintothedoor
gapwiththeclawsordriventhroughtheanvil(seepicture).
Anvil
Whenworkinginpotentiallyexplosiveenvironments,sparkingmustbeavoided.
6.5 Retraction of the piston
Whenretractingthepiston,makesurethatthebase(item4)isloweredbetweentheclaw
(item3).Turnthebaseifnecessary.
WARNING / CAUTION!
Whenretractingthepiston,thereisariskofcrushingbetween theclawand
thebase.