User Manual - Doughty Engineering Ltd.
Contents
1. 9 2 1 O 04 S O N lt Q gt O O lt 2 J JII AO O 5 lt 18 LLI 7 Z Lu Lu 2 7 z Lu gt I 7 D O O Q N Q lt o L gt 321 a lt 1 09 gt gt Z Z 2 5 Z hn O z gt 2 lt lt www doughty engineering co uk Doughty Engineering Ltd Crow Arch Lane Ringwood Hampshire BH24 1NZ Tel 44 0 1425 478961 Fax 44 0 1425 474481 email sales doughty engineering co uk Web www doughty engineering co uk Note Whilst every effort has been made to ensure that the information contained within this manual is correct Doughty Engineering does not accept any liability for errors or omissions Specifications and technical data are intended for guidance purposes only and may vary www doughty engineering co uk2. User Manual www doughty engineering co uk 129497 Gravlock Coupler Version 08 11 www doughty engineering co uk Parts amp Features Body Body Clamp Clamp Bolt Body Clamp www doughty engineering co uk These recommendations are not intended as a design guide for scaffolding structures for which reference should be made to BS 5973 and BS 5975 nor do they consider the effect of the connected structural sections for which reference should be made to BS 5950 and Eurocode 3 1 Gravlock Couplers are designed to connect BS1139 scaffold tube to all types of structural sec tions other than hollow sections having a maximum flange of thickness 45mm 2 Gravlock Couplers must always be used in pairs and additionally must be clamped on opposing sides of the structural sections 3 The following maximum safe working load is calculated from a series of tests carried out both internally and by independent external testing organisations The safety factors employed are in excess of those recommended by BS 5973 1993 clause 39 8 2 i e 2 to 1 4 Safe Working Load all directions 600Kg Quality Standards e EN74 Class A amp B e BS1139 Part 2 e 1509002 BS5750 Gravlock Couplers must always be used in pairs www doughty engineering co uk 4 2 mede Girder couplers must not be clamped on the same side of the structural sections www doughty engineering co uk Data Sheet
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