750-392
CBEX-DE
5-27
Front and Rear Access
Preparing to Close Doors
The doors are insulated with 2" blanket insulation held in place with wire mesh, retainer pins and clips.
Before closing the doors check all the mounting studs by running a mounting nut down the threads. If a flat spot
or burr is found, remove the nut and chase the thread with the appropriate sized thread die.
Use spray adhesive to secure the 1/2” rope and blanket insulation to the rear door sealing area.
Closing and Sealing Doors
Swing the door to the closed position, adjusting the davit bolt to align the door. Be sure the gasket is positioned
correctly prior to tightening the door. Tighten the bolts uniformly, starting at the top center and alternating
between the top and bottom bolts until both are tight. Do not over-tighten. Tighten alternate bolts until all are
secure and the door is gas tight.
After closing the door, loosen the nut on the davit arm stud to release tension on the davit arm. Failure to do so
may result in damage to the boiler due to thermal stresses during boiler operation.
After the boiler is back in operation, re-tighten the door bolts to compensate for compression of the gasket or
movement of the door.
GASKET
1-1/2” ROPE
BLANKET
2”x1/2”
FIGURE 5-22. Rear door
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