1. Remove old gasket and thoroughly clean the surface on boiler and on cover plate. If the gasket being replaced is not a Topog-E® gasket it may be necessary to buff each surface. Place new Topog-E® gasket on inspection cover plate, and make sure that the gasket is pushed down tight on the plate. Do not use any grease, lubricant or adhesive. When the cover plate is in the boiler and the gasket is in place, make one last cleaning swipe using a rag wrapped around your finger to ensure the mating surface in the boiler is clean.

2. Set crab, then center plate in opening and tighten nut enough to give a snug fit. Make it hand tight then increase pressure on the gasket with a quarter turn of wrench.

Series 180 gaskets installation








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