Cement manhole cover without hook how to do

Cement manhole cover without hooks can be taken when the use of ropes, build a temporary hanger, the use of suction cups, the specific methods are as follows:

1, the use of ropes: the rope will be knotted, through the hole in the middle of the cement manhole cover, and then through the two ends of the fixed or hand-held rope for handling.

2, build a temporary hanger: build a simple hanger around the manhole cover, and then use cranes, cranes and other equipment to lift the cover.

3, the use of suction cups: choose a can withstand the weight of the cover of the suction cups, will be installed on the surface of the cover, the use of manual or electric pumping pumping will be sucked up the cover.