ToughTek F340e FAQ & Troubleshooting

Frequently Asked Questions

  • Tighten packing nut.
  • Replace piston packings and piston if necessary.
  • Service the intake valve ball check.
  • Tighten clamps on the rubber elbow.
  • Clean the fluid hose on the applicator.
  • Tighten the wet cup enough to stop leakage.
  • Replace the throat packings.
  • Tighten clamps on the hopper elbow.
  • Reduce length or increase diameter.
  • Turn the power switch ON.

GFCI's are designed to trip when they detect a small amount of leakage current. The leakage current is the difference between the current leaving the power supply and the current returning to the power supply. Although the F340 has leakage current below 5mA (the value at which North American GFCI's trip), some GFCI's will still trip. It is normal for continuous running motors, such as pumps, to sometimes have small electrical fluctuations. Sensitive GFCI's may detect this and falsely trip. Because of this, we recommend not using GFCI breakers in line with your F340e.

 

  • Clean the hose or application.
  • Clean rod. Always stop pump at bottom of stroke; keep wet cup filled with TSL. 
  • Be sure the inlet ball moves freely.
  • Refill the hopper and the prime pump.
  • Clear piston valve. 
  • Service the piston ball check.
  • Replace packings.
  • Clear or service intake valve.
  • Adjust air needle valve on applicator (see applicator manual).
  • Service spray applicator (see applicator manual).
  • Disassemble and Clean the pump.
  • Try to flush the hose using water hose and/or polyurethane tube.
  • Install the outlet check valve in the proper orientation.
  • Thin and mix material thoroughly to a lower viscosity.
  • Use a pump system priming fluid (slime). Wet out the system.
  • Use a larger diameter hose.
  • Check voltage supply to the sprayer:
    • Turn the motor power switch to OFF and unplug the sprayer. 
    • Locate a good voltage supply to prevent damage to electronics.
  • Open the relief valve to relieve pressure. 
  • Remove the obstruction and cycle power off and on. 
  • If the problem continues, contact your local distributor.
  • Install the outlet check valve in the proper orientation.
  • Allow the sprayer to cool. 
  • If the sprayer runs when cool, correct the cause of overheating. 
    • Keep the sprayer in a cooler location with good ventilation. 
    • Make sure the motor air intake is not blocked. 
  • If the sprayer still does not run, contact your local distributor
  • Check voltage supply to the sprayer:
    • Turn the motor power switch to OFF and unplug the sprayer.
    • Remove other equipment that uses the same circuit.
    • Locate a good voltage supply to avoid damage to electronics
  • Make sure the motor air intake is not blocked.
  • Make sure the fan has not failed.
  • Make sure the control board is properly connected to the back plate and that conductive thermal paste is used on power components.
  • Replace the control board.
  • Replace the motor.
  • Turn the motor power switch to OFF and unplug the sprayer.
  • Remove the motor shroud.
  • Disconnect the motor control and inspect for damage at the connectors.
  • Reconnect the motor control. 
  • Turn the motor power switch to ON. If the blinking code continues, replace the motor.
  • Turn power OFF.
  • Remove the motor shroud.
  • Disconnect the motor control and inspect for damage at the connectors.
  • Inspect the sensor for water. If the sensor is wet, let it dry for 24 hours.
  • Re-install the sensor, motor control connections, and shroud.
  • Turn power ON. If the problem continues, replace the motor.

  • Set the motor power switch to OFF and unplug the sprayer.
  • Locate a good voltage supply to avoid damage to electronics.
  • 25' is the recommended minimum hose length.  If a shorter hose length is used, pulsing or winking may be seen when spraying.  The longer hose length acts as an accumulator to smooth pump change over which helps achieve a more uniform and consistent spray pattern.

     

    Graco