GSI Group PNEG-1451, Installation Manual

Page: 63 / 118

6. 2.66" Corrugated Commercial Hopper Tank 10-22 Rings
PNEG-1451 Ladder, Safety Cage and Platform for Hopper Tanks 63
Location of Field Drilled Holes for Base Ladder Starter Brackets
Before installing the starter brackets, field drill two (2) 3/8" holes (A) 2.66" below and directly in line with
the top horizontal seam holes located in the sixth ring from the bottom (B) of the tank. The first hole, for the
right hand starter bracket, must be located 9-3/8" from the center of the left hand base platform mounting
angle (C) to the center of the hole. The second hole, for the left hand bracket, must be located 18-3/4"
from the center of the first hole.
Refer to Figure 6X for the proper location of the two (2) 3/8" field drilled
holes (A) required to install the starter brackets.
Figure 6X
Ref # Description
A Field Drill Two (2) 3/8" Holes
B
6
th
Ring from the Bottom
C Base Platform Mounting Angles ( See Page 62 for installation details.)