Graco Dyna–Star 239882 User Manual (English)

Questions and Answers:

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Richard JordanAug 5, 2025
What to do if Graco Water Pump won't run?
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  Ashley WebbAug 5, 2025
  If the Graco Water Pump won't run, several factors could be at play. First, ensure the dispense valve is open, as the pump operates only when it is. Check the pressure; if it's too low, increase the supply pressure using a pressure adjusting valve. Verify that the hydraulic fluid supply is sufficient, adjusting the flow to a maximum of 3 gpm (11 lpm). Also, inspect the fluid outlet line, intake valve, dispense valve, and suction line for clogs and clear any obstructions after relieving the pressure. If these steps don't resolve the issue, the reciprocator might be damaged and require repair.
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Shelby RiveraAug 11, 2025
Why does my Graco Water Pump run but output is low on both strokes?
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  William SalazarAug 11, 2025
  If your Graco Water Pump runs but the output is low on both strokes, it could be due to a few reasons. First, check that the hydraulic fluid supply is sufficient and adjust it to a maximum flow of 3 gpm (11 lpm). Also, low pressure could be the issue, so increase the supply pressure using a pressure adjusting valve. Finally, inspect the fluid outlet line, intake valve, dispense valve, and suction line for any clogs and clear them after relieving the pressure.
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Andrew GarciaAug 16, 2025
Why does my Graco Dyna–Star 239882 Water Pump speed up or run erratically?
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  Ms. Nicole Nelson PhDAug 16, 2025
  If your Graco Water Pump speeds up or runs erratically, it could be due to a worn pump piston or intake valve, requiring you to relieve pressure, check, and repair. Another possible cause is an empty supply container; refill it, reprime the pump, and closely monitor to prevent it from running dry, or consider using a low-level cutoff valve.
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erika34Aug 22, 2025
What to do if Graco Dyna–Star 239882 Water Pump runs, but output is low on up and/or down stroke?
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  virginiavaldezAug 22, 2025
  If the Graco Water Pump runs, but the output is low on either the up or down stroke, the pump piston and/or intake valve might be worn. Relieve the pressure and then check and repair them.
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Samantha LunaAug 28, 2025
What causes hydraulic oil leaks from fittings in the upper or lower reciprocator blocks (31, 32) of Graco Water Pump?
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  Janice CarterAug 28, 2025
  Hydraulic oil leaks from fittings in the upper or lower reciprocator blocks of your Graco Water Pump can be caused by loose fittings (1, 5, 58) or worn/damaged o-rings. Try tightening the self-sealing fittings first. If the leaking persists, replace the o-rings.