How to safely use U-head Jack in ring lock shoring scaffolding Dec 1,2020

Safety Requirement of Installing U-head Jack

When installing U-head Jacks, the height from top ledger to u-head plate must be strictly controlled not exceeding 650mm! Screw jack exposes out of the vertical tube more than 400mm is prohibitted! Screw jack remains in vertical tube shall not be less than 150mm.


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