Smith Cast Iron Boilers GB300 - Manual (Page 14)

GB300 BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Page 14
Bolt the front and rear base panels in place, Figure 13.
Center the factory installed refractory retention brackets
on the rear base panel so that the bracket is in the middle
of each refractory board Figure 13B.
Figure 13A Burner Base, Side Front and Rear
13 to 21 Sections Panel Assembly
Figure 13B
Figure 14A Base Rear Channel Bolt Holes
Figure 14B Base Rear Channel
NOTE: Do not install the two lower bolts in the base
rear panel, Figure 14A. These holes are used to attach
the base rear channel on 6 -12 section rear panels
and 13-21, Figure 14B.