Graco Xtreme 145cc (600) Series

Questions and Answers

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Melissa MyersAug 16, 2025
Why my Graco Xtreme 145cc (600 Water Pump doesn’t operate?
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  Deborah CruzAug 16, 2025
  Your Graco Water Pump might not be operating due to several reasons. The valves could be closed or clogged, in which case you should clear the air line and increase the air supply, also check that the valves are open. Another cause might be an obstructed fluid hose or gun, so clear the hose or gun, and consider using a hose with a larger ID. If there's dried fluid on the displacement rod, clean the rod and always stop the pump at the bottom of the stroke, keeping the wet-cup filled with a compatible solvent. Finally, dirty, worn, or damaged air motor parts could be the culprit, so clean or repair the air motor.
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Joel CurryAug 22, 2025
Why does my Graco Water Pump have erratic or accelerated speed?
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  Anthony WilsonAug 22, 2025
  Erratic or accelerated speed in your Graco Water Pump can stem from a few issues. First, check if the fluid supply is exhausted or the suction line is clogged; if so, refill the supply, prime the pump, and clean the suction tube. High viscosity fluid can also cause this, so reduce the viscosity and adjust the intake spacers. Additionally, inspect for an open or worn piston valve or packings, and clear the piston valve or replace the packings if needed. Finally, an open or worn intake valve could be the cause, so clear or service the intake valve.
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Elizabeth JacksonAug 26, 2025
How to fix air bubbles in fluid from Graco Xtreme 145cc (600?
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  Joan ValdezAug 26, 2025
  If you're seeing air bubbles in the fluid from your Graco Water Pump, it might be due to a loose suction line. Try tightening it, and use a compatible liquid thread sealant or PTFE tape on the connections to ensure a proper seal.
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Brandon LambAug 28, 2025
What causes low output on the downstroke of a Graco Water Pump?
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  ivanlewisAug 28, 2025
  Low output on the downstroke of your Graco Water Pump could be due to an open or worn intake valve, so clear or service the intake valve. Another possibility is high viscosity fluid, in which case you should adjust the intake spacers.
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Austin FloydAug 31, 2025
Why is the Graco Xtreme 145cc (600 Water Pump causing a poor finish or irregular spray pattern?
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  Amber ClarkAug 31, 2025
  A poor finish or irregular spray pattern with your Graco Water Pump could be due to several factors. It might be caused by incorrect fluid pressure at the gun. Also, the fluid might be too thin or too thick, so adjust the fluid viscosity. A dirty, worn, or damaged spray gun could also be the culprit, so service the gun.
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jacobmcclureSep 3, 2025
What causes low output on the upstroke of a Graco Xtreme 145cc (600 Water Pump?
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  Marissa GonzalesSep 3, 2025
  Low output on the upstroke of your Graco Water Pump is typically caused by an open or worn piston valve or packings. To resolve this, clear the piston valve and replace the packings.
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khendersonSep 6, 2025
What to do if Graco Xtreme 145cc (600 Water Pump cycles or fails to hold pressure at stall?
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  Duane LiSep 7, 2025
  If your Graco Water Pump cycles or fails to hold pressure at stall, it's likely due to worn check valves or seals. You should service the pump.
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Chris WaltonSep 9, 2025
Why does my Graco Xtreme 145cc (600 run sluggishly?
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  bonnieperkinsSep 9, 2025
  If your Graco Water Pump is running sluggishly, it could be due to possible icing. Stop the pump and let the ice melt.
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scopelandSep 10, 2025
What to do if the Graco Water Pump output is low on both strokes?
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  David HolderSep 12, 2025
  If your Graco Water Pump has low output on both strokes, start by checking the air line for restrictions or inadequate air supply, and ensure valves are not closed or clogged. Clear the air line and increase the air supply, also check that the valves are open. Also, inspect the fluid hose and gun for obstructions, using a hose with a larger ID if necessary. Worn packings in the displacement pump can also cause this issue, so replace them. If the air motor parts are dirty, worn, or damaged, clean or repair them. Lastly, check for an open or worn intake valve, and clear or service it as needed.
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hallrickySep 12, 2025
What to do if I hear an audible air leak in my Graco Water Pump?
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  marissathompsonSep 12, 2025
  If you hear an audible air leak in your Graco Water Pump, check the air connections and service the pump.