Opening, disassembling and reassembly DEDRA 400 grating D400 class
Opening of the grating
The DEDRA 400 standard gratings are unlocked with standard tools (crowbar or pickaxe) in using the two housings of the opening identified by the marks (arrows):
In order to comply with the PMR regulations, the DEDRA 400 PMR grids are unlocked with a pickaxe as indicated below:
Disassembling and reassembly of the grating
After having unlocked the grating, to maintain this one in opened position to 90°, make it slide in the notch of the frame and to leave the pivot on the opposite side to the notch by carrying out a rotation. (Idem principle SELECTA gratings and gully units).
The reassembly of the grating is executed by carrying out these operations in the inverse order.
During the closing of the grating it is imperative to make sure of cleanliness of the faces of supports of the framework and the grating.