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Appendix
Removing Cement
from the Cell
If cement has cured inside the cell, it may be necessary to use force to
remove it. The Knock Out Tool (#120-57-21) will help you safely extract the
cement from the cell.
1.
Remove all fittings and caps from the cell body.
2.
Place the cell on the Knock Out Tool stand on a flat, stable surface.
3. Place the smallest piston inside the cell so that it sits on top of the
cement. If the piston does not extend above the top of the cell, try the
next longest piston.
4. Carefully hit the piston with a hammer.
The cement plug may fall out of the cell after a few hits from the hammer.
If it doesn’t continue hitting it until it has been pushed completely out of
the cell.
5. If the top of the piston sinks below the opening of the cell, remove the
piston and replace it with the next longest.
Be very careful not to hit the cell body with the hammer.
6. Repeat steps 4 and 5 until the cement is forced completely out of the test
cell.
Piston, 1.5" (#120-57-21A)
Piston, 3.5" (#120-57-21B)
Cell Stand (#120-57-21D)
Piston, 7" (#120-57-21C)
