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How do u take apart the outlet valve of Wagner crew 770 paint sprayer?.

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Posted on Jan 02, 2017

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SOURCE: Sirs: I was painting, and everything was going

i will tell you what the first problem is...YOU BOUGHT A WAGNER!
i know they are priced for the homeowner and marketed as such, but they are horribly built!

but heres some things that may help...
did you check that the tip was compleately cleared?
the pinhole helfway down the shaft is likely clogged, you need a tiny pin or needle to clean it.

2nd did you leave paint in it after using it?
all sprayers are very fickle and should be completly cleared though with at least water until you see no colorization in the water.

its best to run 'pump juice' through it as well to keep the parts lubricated.

also there should be small yellow filters in the handle of the gun, which will be caked with paint once again if you didnt run lots of water through it.

i have to take my CAMBELL HAUSFELD into the shop about every 100 gallons sparyed through....fickle creatures.

Posted on Nov 07, 2009

  • 3 Answers

SOURCE: Wagner Paint crew - No pressure

In order of likelyhood:

1. There is an inlet valve where the paint first enters from the hopper. With the machine off, you can poke your finger all the way down the hole. It's spring loaded and will depress abouta quarter inch. If the inlet valve is stuck no paint will pump in PRIME or SPRAY position.
2. In SPRAY position. Motor runs for a few seconds then turns off. This means the pump is working. When you pull the trigger, if you get poor pressure, the problem is in the gun. Unscrew the handle and remove the filter. Clean out everything you can, and replace filter if necessary. Also try turning the spray nozzle 180 degrees and spray to clear if necessary.

there are more things that can go wrong, but these are the most likely.

Posted on Dec 14, 2009

  • 3 Answers

SOURCE: Wagner paint crew won't build pressure or shut off.

1. Does it pump paint in PRIME position. If yes, then the outlet valve assembly may be stuck or bad.

2. If it won't pump paint in the PRIME position, the inlet valve may be stuck, just poke your finger down the inlet hole (machine off) . It is spring loaded and should move about an 1/8".

3. The worst option is the pump piston if froze. To check: remove the plastic hopper assembly, comes off with about 4 screws from underneath. The whole thing just pulls off. Now you can see the inlet assembly with two O rings. Use the white plastic hex shaped tool comes with the spray, and stuck on the lower base of the unit. Unscrew the inlet assembly. If clean enough, you can see the end of the piston. It's about a 1/4" diameter. Turn the machine on for a moment and you shoud see the piston move back on forth. If it doesn't the piston is froze. Good Luck with that.

Posted on Dec 14, 2009

  • 14 Answers

SOURCE: finding a booklet for a Wagner 770 paint sprayer

You can find a manual here:

Michael '

Posted on Jun 21, 2011

  • 2559 Answers

SOURCE: have a Wagner Paint Crew

Paint Flow Problems

  • If the unit does not draw material when the PRIME/SPRAY knob is set to PRIME, check to see if the paint hopper is empty. If paint is in the hopper, ensure that the paint is not too thick for the unit to draw. Also, make sure the unit is on level ground to allow the paint to flow properly in the hopper. Examine the inlet filter to see if it is clogged and clean it, if necessary.
    Sometimes the inlet or outlet valves may be stuck. If so, clean them. If this does not help, replace the valves. Check the PRIME/SPRAY valve to see if it is plugged and clear the valve, as needed.
Pressure Problems
  • If the sprayer is drawing material properly, but the pressure drops when the trigger on the spray gun is activated, first examine the spray tip for clogging or wear. Clean the tip or replace it, if worn out. Also, check the inlet and outlet valve assemblies for clogging or wear. Clean the assemblies or replace them, if necessary. The paint may also be too thick or coarse to spray properly and may need to be remixed to a thinner consistency. The filter in the spray gun may also need to be cleaned.

Posted on Jun 29, 2011

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Here you can find the manual:

Michael '

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Finding a booklet for a Wagner 770 paint sprayer

You can find a manual here:

Michael '

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