The blast hose recoils heavily when the blast control switch is engaged. Large slugs of abrasive and water are ejected from nozzle.

  • When you have finished blasting, perform wash until all of the abrasive is flushed from the blast hose (see Using the Wash Feature in manual).
  • Turn the selector valve to OFF, and with the abrasive ball valve closed, continue to blast until all water is cleared from the hose.
    • This is to dry the inside of the hose for storage.
  • Perform Pressure Relief Procedure.
    • Close the abrasive ball valve.
    • Close the compressor supply air valve, then turn the compressor off.
    • Make sure the supply pressure gauge reads 0 psi, then close the air supply valve.
    • Disconnect the system air inlet hose.
    • Turn the selector valve to OFF.
    • Close the fill/flush valve and disconnect the pressurized water supply.
    • Open the pot dump valve until the pot pressure gauge reads 0 psi.
  • With the pot pressurized, the selector valve in the BLAST position, and the abrasive ball valve closed, engage the blast control switch and check to make sure the pump is stalled.
  • If the pump rod is cycling, replace the abrasive ball valve.
  • With the pot pressurized and the abrasive ball valve open, check to make sure the pump is stalled.
  • If the pump rod is cycling, replace the pinch hose (see Replacing the Pinch Hose in manual).
  • Close the fill/flush valve.