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ToughTek F680e Troubleshooting Advice
Frequently Asked Questions
- Service the piston ball check.
- Replace the piston packings and piston if necessary.
- 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.
- Use a hose with a larger ID.
- Tighten the wet cup enough to stop leakage.
- Replace the throat packings.
- Increase the pressure.
- Clean or replace tip/gun.
- Tighten clamps on the hopper elbow.
- Bring the sprayer to a Graco distributor for repair.
- Reduce length or increase diameter.
- Clean the hydraulic components.
- Fill with oil.
- Turn the sprayer OFF and add hydraulic fluid.
- Verify the pump control switch setting.
- Verify the remote switch position.
- If the solenoid is not receiving a signal and remains closed when the pump control switch is in the ON position, it can be manually overridden.
- To override, push the red button in, turn counterclockwise 180°, and release.
- The solenoid valve will remain open at all times.
- 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.
- Verify that the ball valve is in the open position.
- Refill the hopper and the prime pump.
- Clear piston valve.
- Service the piston ball check.
- Replace packings.
- Clear or service intake valve.
- Service the pump lower.
- 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 dipstick to ensure that hydraulic reservoir is properly filled.
- Make sure the hydraulic pump inlet fitting is fully tight, to ensure no air is leaking into the hydraulic pump inlet.
- To prime pump:
- Run unit at lowest pressure setting and slowly increase pressure.
- In some cases it may be necessary to remove cover shroud, belt guard, and drive belt to allow for manual (counterclockwise) rotation of hydraulic pump.
- Turn fan pulley by hand. Verify oil flow by removing oil filter to see flow into filter manifold.
- Reinstall oil filter.
- Do NOT operate unit without a properly installed oil filter.
- If noise continues longer than 30 seconds, turn off main power disconnect to shut off the motor.
- Check that the hydraulic pump inlet fittings are tight and that the pump has not lost its prime.
- Ensure that the reservoir is properly serviced.
- Improve ventilation to allow more efficient heat dissipation.
- Check drive belt condition.
- Replace if broken.
- Check connections in electrical enclosure.
- Check for 200–240 VAC at input of motor contactor.
- Reset breaker inside the electrical control box.
- Wait for the motor to cool, then restart the motor.
- Verify that the air hoses, fittings, and cooling tube on the machine are free of debris.
- Also, verify that the air relief valve (part 17H606) and muffler (part 120206) are clean and free of debris.
- Verify that the air hoses, fittings, and cooling tube on the machine are free of debris.
- Also, verify that the air relief valve (part 17H606) and muffler (part 120206) are clean and free of debris.
- Wait for the motor to cool, then restart the motor.
