Why is fluid spitting from my Graco GMAX 3400 gun?
If fluid is spitting from the gun of your Graco Paint Sprayer: * There might be air in the pump or hose. Check and tighten all fluid connections and re-prime the pump. * The tip could be partially clogged. Clear the tip. * The fluid supply might be low or empty. Refill the fluid supply, prime the pump, and check the fluid supply often to prevent running the pump dry.
Why is there excessive paint leakage into the throat packing nut of my Graco GMAX 3400?
If there is excessive paint leakage into the throat packing nut of your Graco Paint Sprayer: * The throat packing nut might be loose. Remove the throat packing nut spacer and tighten the throat packing nut just enough to stop the leakage. * The throat packings might be worn or damaged. * The displacement rod could be worn or damaged.
How to fix a Graco GMAX 3400 Paint Sprayer pump that is hard to prime?
If the pump on your Graco Paint Sprayer is difficult to prime: * There might be air in the pump or hose. Check and tighten intake tube connections. Reduce engine speed and cycle pump as slowly as possible during priming. * The intake valve could be leaking. Clean the intake valve, ensuring the ball seat is not nicked or worn and that the ball seats well. Then, reassemble the valve. * The pump packings may be worn. * The engine speed might be too high. Decrease the throttle setting before priming the pump.
Why won't my Graco Paint Sprayer engine start?
If your Graco Paint Sprayer's engine won't start, there are several potential causes: * The engine switch might be OFF. Ensure it is turned ON. * The engine may be out of gasoline. Refill the gas tank. * The engine oil level could be low. Replenish the oil if necessary. * The spark plug might be disconnected or damaged. Connect the spark plug cable or replace the spark plug. * The engine might be cold. Use the choke. * The fuel shutoff lever could be OFF. Move the lever to the ON position. * Oil might be seeping into the combustion chamber. Remove the spark plug, pull the starter 3 to 4 times, clean or replace the spark plug, and then start the engine. Keep the sprayer upright to avoid oil seepage.
How to troubleshoot high engine speed at no load on Graco Paint Sprayer?
If your Graco Paint Sprayer has a high engine speed at no load: * The throttle setting might be misadjusted. Reset the throttle to 3300 engine rpm at no load. * The engine governor could be worn. Replace or service the engine governor.
Why does the clutch squeak when it engages on my Graco GMAX 3400 Paint Sprayer?
If the clutch squeaks each time it engages on your Graco Paint Sprayer, the clutch surfaces may not be matched to each other when new, which can cause noise. The noise will dissipate after a day of run time as the clutch surfaces wear into each other.
What to do if the gallon counter is not working on my Graco GMAX 3400?
If the gallon counter is not working on your Graco Paint Sprayer, it could be due to a bad sensor, a broken or disconnected wire, or a displaced or missing magnet. Check the connections, replace the sensor or wire, or reposition or replace the magnet.
What causes false tripping of the WatchDog system on a Graco GMAX 3400?
If the WatchDog system on your Graco Paint Sprayer is tripping falsely, displaying 'EMPTY' and the pump isn't running, it could be due to operating conditions being outside of the WatchDog parameters. Turn the pressure down, or operate without WatchDog active.
What to do if there is no display but the sprayer operates on my Graco GMAX 3400 Paint Sprayer?
If there is no display but the sprayer operates on your Graco Paint Sprayer, the display might be damaged or have a bad connection. Check the connections and replace the display if necessary.
Why is the pump output low on my Graco GMAX 3400?
If the pump output is low on your Graco Paint Sprayer, consider the following: * The strainer might be clogged. Clean the strainer. * The piston ball may not be seating correctly. * The piston packings or O-ring in pump might be worn or damaged. * The intake valve ball may not be seating properly or is packed with material. Clean the intake valve. * The engine speed might be too low. Increase the throttle setting. * The clutch could be worn or damaged. Adjust or replace the clutch. * The pressure setting might be too low. Increase the pressure. * The fluid filter, tip filter, or tip could be clogged or dirty. Clean the filter. * There might be a large pressure drop in the hose with heavy materials. Use a larger diameter hose and/or reduce the overall length of the hose....
General| Brand | Graco |
|---|---|
| Model | GMAX 3400 |
| Category | Paint Sprayer |
| Language | English |
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