GSI Group PNEG-1451, Installation Manual

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5. 2.66" Corrugated Commercial Hopper Tank 4-9 Rings
PNEG-1451 Ladder, Safety Cage and Platform for Hopper Tanks 23
Location of Field Drilled Holes for Eave Ladder Starter Brackets
The starter brackets must be located directly below the roof ladder (A). Before the starter brackets can be
installed, two (2) 3/8" holes must be field drilled 2.66" below and directly in line with the top row of
pre-punched horizontal holes. The first hole, required for the left hand starter bracket, must be located
9-3/8" from the center of the stiffener to the center of the hole as shown in
Figure 5B . The second
hole, required for the right hand bracket, must be located 18-3/4" from the center of the first hole. Refer to
Figure 5B for the proper location of the two (2) 3/8" field drilled holes (B and C) required to install the
starter brackets.
Figure 5B
Ref # Description
A Roof Ladder
B Field Drill 3/8" Hole for L.H. Bracket
C Field Drill 3/8" Hole for R.H. Bracket
D Manway Panel
E 28-1/8" Reference
F 32" Typical
G 56-1/4" Typical