T - tool and instructions for proper use when opening and closing of manhole covers

COVERS WITH LOCK SYSTEM

For Safety, Marmox provide a Secure Lock System that is made of special head screws with a special tool that must be Used for opening and lifting the covers

OPENING INSTRUCTION

Step 1	Step 2
To lock the cover to the frame be sure that the lock holes are accurately aligned together and use the screwing T-tool until the screw head is fully flush with the cover top surface.	Use the same T-tool for unlocking when needed.

LIFTING INSTRUCTION

Step 1	Step 2
To left up the cover use the screw side of the T-tool and screw it in the metal nut fixed at cover bottom and pull up the cover from the frame.	Keep the T-tool tied to the cover to reinstall the cover in the frame after maintenance.

COVER WITH HINGE SYSTEM

The hinged system, for all types of manhole and drainage covers

OPENING TOOL