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15.
Using a hammer and the knock out tool and/or a cement press, remove
the cement plug from the test cell.
Be sure to apply force only to the top of the cement plug.
Take extra precautions as the bob can be damaged during this operation.
16.
Note the top and bottom of the cement plug. The top of the plug will have
a hole in the top from which the shaft was pulled.
17. Set the plug on its side.
18.
Using a small chisel, begin chipping at the plug about ½” from the bottom.
19. Remove the cement from the bottom of the plug in small chunks until you
expose one of the vanes on the bob.
20. Set the plug upside down on the counter.
21. Place the chisel next to the exposed vane and begin chipping downward
away from the vane.
22. Proceed around the bob by removing the cement from between the
vanes.
Do not use any type of decontamination or cleaning agents as they may
cause a hazard as a result of a reaction with parts of the equipment
or with material contained with in. If there is any doubt about the
compatibility of a decontamination or cleaning agent please contact
OFITE Technical Support.