Technical information Crab range

6 7 H é l i c r a b s p i r a l s t a i r c a s e U s e r m a n u a l Only 3 main parts complementing the Crab range to create your accesses… … and 2 parts for erection in complete safety Flights of steps The flights of steps have a central post, non slip treads, a stair stringer that acts as a toe guard without being an obstacle for side access. Part number Description Weight (kg) 250042-9 Two step flight 11.60 250043-7 Three step flight 15.80 Standard for guardrail Fitted on the top of a staircase to support the guardrail closing off the top landing. Part number Description Weight (kg) 250040-3 Standard for guardrail 4.90 Erection trapdoor Used for erection platforms. It swivels around a ledger, to provide easy access for the erector during erection and dismantling. Part number Description Weight (kg) 250047-8 Erection trapdoor 15.30 MDS guard rail It provides collective protection for erectors and workers. It is attached to the brackets on the outside of the standards. The bottom brackets lock it in place when the ledger fixed. Part number Description Weight (kg) 250045-2 Hélicrab 1.50 m MDS guardrail 9.66 Fit the central column socket on the flight Swivel the outside until it meets the lower step Wedge 01.01.17