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6) Hang a rear tie rod channel bracket on the 4" stud installed in the left end section (Figure 12a).
7) Facing the rear of the boiler, find the square mounting holes underneath the draft hood. Drop a 5/16 x 5" carriage
bolt through this hole and through the hole in the rear tie rod channel bracket. Loosely secure with a wing nut and
washer (Figure 12b). Install a second rear tie rod channel bracket on the other side of the draft hood.
8) Using a plumb bob, adjust the rear tie rod channel brackets so the jacket mounting holes in the rear tie rod channel
brackets line up with the holes in the jacket rear panel support brackets on the base modules.
9) Tighten the 5/16 wing nuts on the front and back of the draft hood.
10) Repeat Steps 5-9 to install the remaining draft hoods.
NOTE
Installation of the draft hoods will be easier if one person supports the rear of the hood while
another installs the carriage bolts, nuts and washers.
CAUTION
Before tightening the draft hood hold-down nuts, make sure the gasketing is properly located
under the draft hood. Recheck the positioning of the gaskets after tightening the nuts and make
adjustments as necessary.
Figure 9: Draft Hood Gasket Installation Figure 10: Hardware Arrangement for Rear Tie
Rod Mounting Bracket Installation