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How to fix significant material leaking from pump rear seal on Graco PR70 Dispenser?
If there is significant material leaking from the pump rear seal of your Graco Dispenser, it is likely that the pump shaft is worn. Remove the pump shaft assembly and reinstall the rear pump rebuilt kit.
What causes pumps drawing material back from valve hose on Graco PR70?
If the pumps are drawing material back from the valve hose on your Graco Dispenser, the check valve might be stuck open. Remove the check valve and clean or replace it as necessary.
Why is my Graco PR70 Dispenser not dispensing the correct amount of material?
If the Graco Dispenser is not dispensing the correct amount of material from either side, make sure the tank ball valve is open (if installed). Check if the tank is empty and fill it with material if needed. Ensure there are no obstructions in the tank. Prime the machine to remove any air in the material. Remove, clean, or replace the check valve if it's malfunctioning. If the piston is worn, remove and replace it.
How to fix a completely dark display module on Graco PR70?
If the Display Module of your Graco Dispenser is completely dark, first verify that the rear AC Power switch is ON. If it's on and the display is still dark, replace the machine fuses. Check and tighten the 5-pin cable on the Display Module to ensure a secure connection. If the problem persists, the Display Module may be faulty and require replacement.
What to do if the piston is stalled on my Graco Dispenser?
If the piston in your Graco Dispenser is stalled, reconnect the input air line to the machine and increase the air pressure regulator adjustment. Replace the static mixer, and consider incorporating a purge timer or decreasing its delay to prevent mixer blockage. Readjust the Open Dispense Valve (ODV) setting to occur sooner. Remove, clean, and replace any blocked check valves. If these steps don't resolve the issue, the air cylinder may have failed, requiring you to remove and reinstall the air cylinder parts as necessary.
What to do if my Graco PR70 is dispensing off ratio?
If your Graco Dispenser is dispensing off ratio, start by checking the tank levels and adding material if necessary. Ensure the tank ball valve is open and prime the machine. If the machine is out of phase, rephase it. Also, check the valve for any malfunctions, and clean or replace it as needed. Finally, replace the piston if it's worn or broken.
Why is the material dispensed from my Graco Dispenser not the correct weight?
If the Graco Dispenser is dispensing material that is not the correct weight, first, recalibrate the machine if the specific gravity of the materials has changed or if the air pressure has changed since the last calibration. Also, ensure there is enough material in the tanks, filling and priming as needed. If there's a slight obstruction in the mixer, replace it and prime the machine. Finally, inspect the check valve for malfunctions, cleaning or replacing it if necessary, and replace the piston if it's worn or broken.
What does error code E24 mean on Graco PR70 Dispenser?
If you receive an E24 Improper Calibration Error on your Graco Dispenser, it indicates that the machine's calibration is invalid, preventing the requested shot from being executed. To resolve this, correct the calibration on the machine.
General| Hose Length | Customizable |
|---|---|
| Power Source | Electric |
| Ratio Range | 1:1 to 12:1 |
| Viscosity Range | Up to 1, 000, 000 cps |
| Materials | Epoxies, polyurethanes, silicones, and other two-component materials |
| Applications | Potting, encapsulation, gasketing, sealing, bonding |
| Dispensing Capacity | Variable, based on configuration |
| Weight | Approximately 150 lbs |
| Dimensions | Varies based on configuration |
