Question about GRACO INC X70DH3 - Xtreme X70 NXT Sprayer W/Heavy-Duty Cart

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How do i rebuild a graco xtreme x70 airless sprayer

I need a manual on how to take the pump apart

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I have Graco Gmax 5900 Airless paint sprayer Gas Powered with gun & hose. It is spraying alright but started making a loud kinda of a grinding noise when spraying. Any ideas on what problem may be,...

As I have only just seen your question, maybe you have fixed the problem? If not, this GMax sprayer has an electric clutch to control when it is pumping or not, so there could be 2 sources of the problem: The first is that when the clutch is closed, some part is touching something inside the housing. The other possibility is that one of the bearings has gone dry or a gear has a damaged tooth.

If its not fixed, the drive assembly needs to be opened up and the parts cheked

Jun 01, 2014 | GRACO INC GMAX II 5900 Airless Paint...

2 Answers

Wont prime

Tap where where the intake ball to free it up
or take it apart and clean out the ball

Nov 09, 2013 | Tools & Hardware - Others

2 Answers

Graco manual

May be clogged. Push out roll pin with a pin punch and remove assembly.Check plastic pices for broken parts ( black). Put pump in water make sure it's delivering material with valve out. Ports on valve are not that big and do clog.

Oct 24, 2013 | GRACO INC Ultra Max II 1095 Premium...

1 Answer

Prime valve repair

In all the paint sprayers I've worked on, I've only been able to repair a couple prime valves and they went totally bad a short time after that. They can be taken apart and cleaned up but in the long run you'll be much further ahead replacing it if it isn't holding pressure in your system.

Jan 17, 2013 | GRACO INC 258720 - Ultra Max II 695 Hi-Boy...

1 Answer

390 graco airless spray painter manual

Go to Graco's website at Under the customer Care tab you can look for Instruction Manuals. Search on your model number and you'll get a list of files that refer to your model. Usually the manual and/or parts breakdown are in the first two or three files.

Aug 20, 2012 | GRACO INC 390 Airless Paint Sprayer 253958

1 Answer

Graco magnum paint sprayer won't prime

Airless won't prime- I always start trouble shooting an Airless that won't build/hold pressure look at sump hose inlet filter (the hose that goes into the paint if its got paint debris on it clean off filter and pour the paint thru a strainer bag into a clean 5 gal bucket-also remove the filter housing on the spayer and clean and flush and replace filter and housing- the shaft or the metal sleave has two ball bearings called "check balls" that maybe stuck turn on sprayer and put a piece of wood on shaft and give it a few good taps this will knock the check balls loose if after all this fails then you need to have new packings put in becuase the old ones are worn this is pretty easy to see because the rod the compresses the paint will have signs of paint on it indicating that the packings are worn.. Note keep rod and other moving parts oiled ith graco throat seal and finally Graco sprayers with the X on them are there (Graco) home owner line of sprayers that sell at home depot they are rated for only a certain amount of Gal per year keep it in good condition and cleaned store with coro-check inside of the pump when you are done using it.....

May 27, 2012 | GRACO INC 232745 Magnum XR-7 3/4-HP...

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