What to do if Graco Music Mixer display module is completely dark?
If the display module on your Graco Music Mixer is completely dark, check these items: * Ensure the rear AC Power switch is ON. * Replace the machine fuses if they are blown. * Tighten the cable on the Display Module if there is a loose connection. * Replace the Display Module if it is bad.
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.
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 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.
How to resolve no material dispensed from Graco Music Mixer?
If there is no material dispensed or an incorrect amount from either side of your Graco Music Mixer, check the following: * Open the tank ball valve if it is closed. * Fill the tank with material if it is empty. * Verify there is no obstruction in the tank if it is clogged. * Prime the machine until the air is removed if there is air in the material. * Remove, clean, or replace the check valve if it malfunctions. * Remove and replace the piston if it is worn.
What causes significant material leaking from Graco Music Mixer pump rear seal?
Significant material leaking from the pump rear seal of your Graco Music Mixer is caused by a worn pump shaft and/or shaft seal. To resolve this, remove the pump shaft assembly and reinstall the rear pump rebuild kit.
How to fix a stalled piston in Graco PR70?
If the piston in your Graco Dispenser is stalled: * Check if the input air is reduced or removed. Reconnect the input air line to the machine and increase the air pressure regulator adjustment. * The mixer could be blocked. Replace the static mixer, and incorporate a purge timer or decrease the purge timer delay to prevent future blockages. * The Open Dispense Valve (ODV) adjustment might be too late. Readjust the ODV setting to occur sooner. * A check valve might be blocked. Remove, clean, and replace the check valve. * There might be an air cylinder failure. Remove the air cylinder and reinstall the air cylinder parts as necessary.
What to do if Graco PR70 Dispenser is not dispensing material?
If your Graco Dispenser is not dispensing material or dispensing an incorrect amount, check the following: * Ensure the tank ball valve is open (if installed). * Verify that the tank is not empty and fill it with material if needed. * Check the tank for any obstructions. * Prime the machine to remove any air in the material. * Inspect the check valve for malfunction; remove, clean, or replace it. * Check the piston for wear or breakage; remove and replace it if necessary.
What causes a piston to stall in a Graco PR70 and how to fix it?
If the piston on your Graco Dispenser is stalled, it could be due to several reasons. First, check if the input air is reduced or removed; reconnect the air line and increase the air pressure regulator adjustment. A blocked mixer can also cause this, so replace the static mixer and consider using a purge timer to prevent future blockages. An improperly adjusted Open Dispense Valve (ODV) might be the issue, so readjust the ODV setting. Additionally, a blocked check valve can cause the piston to stall, so remove, clean, and replace it. Finally, an air cylinder failure could be the cause, so remove and reinstall the air cylinder parts as needed.
What to do if my Graco PR70 Dispenser is not dispensing the correct amount of material?
If the Graco Dispenser isn't dispensing material, or the amount is incorrect, there might be several reasons. First, ensure the tank ball valve is open. Next, check if the tank is empty or clogged. If not, there may be air in the material, so prime the machine to remove it. A malfunctioning check valve may also be the cause; try removing, cleaning, or replacing it. Lastly, a worn or broken piston can cause this issue, so remove and replace the piston if necessary.
Hazards related to electrical shock during operation.
Risks of high-pressure fluid injection and necessary precautions.
Dangers from toxic fluids and fumes, requiring safety measures.
Essential protective gear for safe operation and maintenance.
Risks of flammable fumes igniting or exploding in the work area.
Dangers and injuries resulting from improper equipment operation.
Risks of injury from moving mechanical components during operation.
Danger of severe burns from hot equipment surfaces or fluids.
Steps for physically mounting the machine and connecting utilities.
Necessary electrical power and wiring considerations for installation.
Importance and procedure for grounding the equipment for safety.
Overview of the different setup screen categories.
Screen for performing various calibration procedures.
Screens for configuring fluid and system options.
Settings for tank and hose heater temperature control.
Configuring general system behavior and run screen options.
Settings for monitoring dispense accuracy.
Calibrating the piston's extended and retracted positions.
Procedure to set the extended position of the piston.
Procedure to set the retracted position of the piston.
Procedure to set the piston position when engaging the cylinder.
Procedure to fill the dispense head with material and remove air.
Adjusting the timing of material delivery for correct ratio.
Fine-tuning the dispense amount for accurate phasing.
Detailed steps for adjusting material phasing.
Adjusting the valve to prevent material drip or air intake.
Setting the timing for the dispense valve opening.
Calibrating the machine for accurate dispensing ratios.
Performing shots to verify and adjust the dispensing ratio.
Performing small and large shots to calibrate dispensing quantities.
Executing and recording small calibration shots.
Executing and recording large calibration shots.
Calibrating flow meters for accurate ratio.
Executing shots to measure and record flow meter data.
Connecting and configuring external machine controls.
Overview of the main operational screens.
Viewing a log of system errors.
Configuring and initiating automatic tank refilling.
Managing tank and hose heater temperatures.
Recommended maintenance tasks and their frequencies.
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 |
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