Operating HintsAir Pressure
Air or water pressure of at least 40 PSI is required to set the wheel into cutting position. When the perforator is under water you must add air or water to equal the pressure outside the perforator plus at least 40 PSI. Using more pressure does not cause a problem. The perforator pop-off or developing valve opens at approximately 80 to 90 PSI. Down pressure on the drill pipe makes the wheel rotate and punch holes.Perforator Orientation
Perforations are made when the tool is moving downward from top to bottom.Perforations
As a general rule, 3 to 4 columns of perforations are recommended for 6" to 8" pipe. For 10" to 12" pipe, 6 to 8 columns of perforations are recommended.
Travel stops are attached to the perforator body to restrict the reach of the wheel. For casing thinner than 0.250", remove the travel stops. This allows the wheel to extend out further for the thinner walled casing.
Remember to retract the cutter wheel before rotating. Frequently inspect cutter wheel for wear. Inspect for excessive wear between blade and axle pin. Use PVC cutter wheels when perforating PVC pipe.