Xtreme XL Troubleshooting Advice

Frequently Asked Questions

  • Clear air line; increase air supply. 
  • Check that valves are open.
  • Clean rod; always stop pump at bottom of stroke; keep wet-cup filled with compatible solvent.
  • Clean or repair air motor. See motor manual.
  • Clear air line; increase air supply.
  • Check that valves are open and clear.
  • Clear hose or gun; use hose with larger ID.
  • Open De-Ice control; see manual.
  • Clear or service intake valve.
  • Adjust intake spacers, see pump manual.
  • Refill supply and prime pump. 
  • Clean suction tube.
  • Reduce viscosity. 
  • Adjust intake spacers, see pump manual.
  • Clear piston valve; replace packings.
  • Clear or service intake valve.
  • Stop pump. 
  • Open De-Ice control; see manual.
  • Tighten. Use compatible liquid thread sealant or PTFE tape on connections.
  • See gun manual; read fluid manufacturer’s recommendations.
  • Adjust fluid viscosity; read fluid manufacturer’s recommendations.
  • Service spray gun. 
  • See spray gun manual.
  • Supply air to motor inlet.
  • Disconnect or remove pump to verify motor operation.
  • Turn off and exhaust air. 
  • Push top and bottom valve shift buttons back and forth until flush with base of valve cap. 
  • Restart motor.
  • Usually ice in the pilot or pilot exhaust port.
  • Disconnect pilot line for that pilot. 
  • If motor changes over, bottom pilot is plugged. 
  • Replace pilot valve and/or thaw ice that is blocking air signal.
  • Disconnect pilot line. 
  • If motor still doesn't change over, shuttle piston metering hole is plugged. 
  • Clean or replace shuttle valve piston assembly.
  • Usually ice in the pilot or pilot exhaust port.
  • Disconnect pilot line for that pilot. 
  • If motor changes over, top pilot is plugged. 
  • Replace pilot valve and/or thaw ice that is blocking air signal.
  • Disconnect pilot line. 
  • If motor still doesn't change over, shuttle piston metering hole is plugged. 
  • Clean or replace shuttle valve piston assembly.
  • Thaw any ice in pilot valve. 
  • Replace valve if it is not ice.
  • Thaw any ice in pilot valve. 
  • Replace valve if it is not ice.
  • Thaw or remove ice. 
  • Lower moisture content of compressed air. 
  • Reduce load on motor.
  • Open the bleed air valve on the main shuttle valve. 
  • This will bleed some warm air through anytime air is supplied to the motor.
Graco