Graco 16N661 - User Manual

Questions and Answers

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Tami RobbinsDec 1, 2025
What to do if Graco Paint Sprayer makes sound but no material is sprayed when trigger is pulled?
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  Steve LeachDec 1, 2025
  If your Graco Paint Sprayer makes a sound but no material comes out when you pull the trigger, check the following: * Ensure the sprayer is primed. * Verify the prime/spray valve is in the DOWN (spray) position. * Confirm the flexible suction tube is properly installed. * Check for clogs in the flexible suction tube strainer, vent valve, or vent holes. * Inspect the flexible suction tube o-rings for damage or if they're missing; replace if necessary. * See if the flexible suction tube is damaged; replace if needed. * Make sure the spray tip is in the SPRAY position. * Check for a clogged spray tip. * Inspect the spray tip filter for clogs. * Increase the pressure by turning the pressure control knob up. * Ensure the material cup has enough material and that the sucti...
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John PerezAug 25, 2025
What causes dripping in the spray pattern of my Graco 16N661 Paint Sprayer?
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  Stephanie SmithAug 25, 2025
  Dripping in the spray pattern of your Graco Paint Sprayer can occur if: * The sprayer is moving too slow for the material. Move the sprayer faster while spraying. * The sprayer is too close to the target surface. Move the sprayer away from the surface to about 10 inches (25 cm).
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Courtney DanielsAug 25, 2025
What causes the spray pattern to "spit" at the end or beginning with my Graco 16N661 Paint Sprayer?
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  ohawkinsAug 26, 2025
  If your Graco Paint Sprayer's spray pattern "spits" at the end or beginning, it could be due to: * Excess material accumulation on the spray tip/guard assembly. Clean the spray tip/guard assembly. * A partially clogged or damaged spray tip filter. Clean or replace the spray tip filter. * The spray tip/guard assembly not being fully threaded onto the sprayer. Ensure the spray tip/guard assembly is completely threaded onto the sprayer. * A worn seat. Replace the spray tip.
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Darren SmithAug 26, 2025
Why is my Graco 16N661 Paint Sprayer leaking fluid at Points A S O w?
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  david62Aug 27, 2025
  If your Graco Paint Sprayer is leaking fluid at Points A S O w, this could be because: * The spray/tip guard assembly is loose. Tighten the spray/tip guard assembly. * The o-ring inside the needle assembly is worn out. Replace the o-ring (108195).
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Nicholas AlvarezAug 27, 2025
Why is my Graco Paint Sprayer leaking fluid at Point B O w If?
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  Ronald PughAug 27, 2025
  If your Graco Paint Sprayer is leaking fluid at Point B O w If, it's likely that the o-ring on the rear of the needle assembly is worn out. Replace the o-ring (108195).
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James MorganSep 16, 2025
Why does my Graco 16N661 have spray pattern with dripping?
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  Carrie StephensSep 16, 2025
  A dripping spray pattern from your Graco Paint Sprayer can occur if: * You are moving the sprayer too slowly for the material; increase your spraying speed. * The sprayer is too close to the target surface; move it about 10 inches (25 cm) away. * You are holding the trigger while changing spray direction; release the trigger when changing directions. * The spray tip is incorrect for the material you're using. * The pressure control knob is too high; decrease the pressure. * The spray tip is worn or damaged; replace it.
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Javier FarleySep 14, 2025
Why is the spray pattern pulsating with my Graco 16N661?
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  Darryl YorkSep 14, 2025
  A pulsating spray pattern with your Graco Paint Sprayer can be due to: * Moving too fast while spraying; reduce your speed. * A clogged spray tip or spray tip filter; unclog the tip or clean the filter.
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amy36Sep 15, 2025
Why does my Graco 16N661 have spray pattern with tails?
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  dmcintyreSep 15, 2025
  If your Graco Paint Sprayer is producing a spray pattern with tails, consider these possible causes: * The pressure control knob is set too low; increase the pressure. * You may be using the incorrect spray tip for the material. * The material you are using may not be compatible with the sprayer; switch to a compatible material. * The inlet or outlet valve fittings may be worn.
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Justin MartinSep 7, 2025
Why is the spray pattern too narrow on my Graco Paint Sprayer?
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  jodyjordanSep 7, 2025
  If the spray pattern is too narrow on your Graco Paint Sprayer, it might be because: * The sprayer is too close to the target surface. Move the sprayer away from the surface to about 10 inches (25 cm). * The spray tip is incorrect for the material. Use the correct spray tip for the application of material. * The spray tip is worn or damaged. Replace the spray tip.
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David BowmanSep 5, 2025
What to do if my Graco 16N661 makes no sound when trigger is pulled?
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  debbie83Sep 5, 2025
  If your Graco Paint Sprayer makes no sound when the trigger is pulled, here are a few things to check: * The trigger might be locked. Disengage the trigger lock. * There might be a power supply issue. Verify power to the sprayer. * The sprayer circuit breaker might have interrupted power. Push and hold the Circuit Reset Button to restore power to the sprayer.