ScrewLift™ is suitable for use with nearly all of Wrekin’s D400 and E600 manhole covers and gully grates. ScrewLift™ is very straight forward to use and can be installed with any bedding mortar.
- Insert all of the plastic brushes into the corners of the flange from the underside of the frame.
- Screw the levelling bolts into the brushes from the top side.
- Using a spirit level or a straight edge on top of the frame, wind down the bolts to achieve the correct level to match the ground/ road surface.
- Lastly apply the bedding mortar to the manufacturers’ requirements.
|For use in a Group 1-4 D400 class environment|
|For use in up to BS EN 124 Group 4 E600 class environment|