4 Crea tion of a Cr o SS b ar g r oup Ins t allation Ins tructions f or Solar F as t ening Sy s t em S t ep 1 Af t er t he lo w er r ail lay er has been mounted in accor dance wit h t he ins t allation ins tr uctions clip t he cr oss r ail joiner s ont o t he lo w er mounting r ail at t he planned int er section points Hook in t he lat er al r unning mounting r ail on t he side mount on t he cr oss r ail joiner and align Then fx t he cr oss r ail joiner in place tight ening t or q ue 1315 Nm S t ep 2 Wit h v er tically r unning mounting r ails a loc king clam p mus t be pushed ont o t hese fush and fx ed in place belo w t he bo tt om end clam p t i g h t e n i n g t or q u e 15 Nm This pr e v ents t he end clam p fr om slipping of The fur t her mounting of t he fas t ening sy s t em is car r ied out in accor dance wit h t he s t eps 710 fr om P oint 1 R oofng wit h P antiles 39 Solar Mounting Syt em N o t e If t he 47x37 mounting r ail is used as t he upper r ail lay er one cr oss r ail joiner is r eq uir ed per int er section point W it h t he 60x37 and 66x37 mounting r ail as t he upper r ail lay er tw o cr oss r ail joiner s mus t be used per int er section point W it h t he 120x90 mounting r ail as t he upper r ail lay er f our cr oss r ail joiner s ar e used per int er section point