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1 . A L L D I M E N S I O N S A R E I N m m U N L E S S O T H E R W I S E S T A T E D .

A 2 . V A R I A T IO N I N S P A C I N G B E T W E E N L A D D E R R U N G S I S P E R M I T T E D

I N C A S E O F I N T E R F E R E N C E W I T H S O M E N O Z Z LE O R I N T E R N A L S .

H O W E V E R T H E S P A C I N G O F R U N G S S H A L L B E E Q U A L .

S Q U A R E R O D S M A Y B E U S E D F O R H A N D G R IP / L A D D E R R U N G S .

I F F A B R I CA T E D F R O M P L A T E T H E E D G E S A R E T O B E R O U N D E D O F F .

M A T E R I A L S H A L L B E A S P E R E N G I N E E R I N G D R A W I N G .

A L L F IL L E T W E L D S S H A L L B E 6 m m M I N IM U M .

O R I E N T A TIO N O F L A D D E R R U N G S S H A L L B E S A M E A S O F M A N H O L E .

7 . D I M E N S I O N S S H O W N I N B R A C K E T S A R E F O R S T A I N L E S S S T E E L M A T E R I A L .

V E R T I C A L VE S S E L

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