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Wagner 642 Won't prime. Have had the whole inlet valve assembly apart to clean. Still won't prime.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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SOURCE: washer won"t fill with water

check your lid switch if its a top load

Posted on May 22, 2009

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Vac Belts
  • 701 Answers

SOURCE: the water doesn't come out. I've taken it apart

The reason the water is not dispersing is because the pump belt is probably stretched or worn. You can get belts and view the manual here:

Bissell 1699 ProHeat Belt and Manual

Posted on Dec 03, 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

seanpwright
  • 2030 Answers

SOURCE: I have a wagner 404

It sounds like one of two things...

either the pump seals need replaced or the motor is not running fast enough under load.

Check for loose wiring on the motor, the brush holders and condition, and make sure that the air path to cool the motor is clean and free of obstructions.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

Posted on Aug 03, 2010

  • 18 Answers

SOURCE: How to remove the Prime/Spray

You can unscrew it without removing the plastic part - just use thin vice grips and get a piece of the metal nut, unscrew down (counter clockwise) and it should come off with average pressure. I checked mine, not much to go wrong there, then screwed back in. I have similar problem with pressure, it is likely a worn O ring. Seems to be in the outlet valve as I replaced some of the inlet valve rings and same effect. Research says the outlet valve is the problem if paint comes out of the squeezed nozzel while in Prime mode, which mine does, and is likely not building the pressure as some paint is flowing back through the worn outlet parts.

Posted on Feb 25, 2011

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1 Answer

My procoat won't prime


The inlet valve is probably stuck. It is a flat poppet type, so you need to free it up. A Graco dealer should be able to supply a special small plastic bottle with a special top filled with their Pump Armour to do this job. Otherwise you can unscrew the inlet valve from the cup side to clean it out, but be careful not to lose the small spring. You should always flush Pump Armour through the ProCoat after use otherwise the passageways corrode

Feb 18, 2014 | Wagner Tools & Hardware - Others

1 Answer

Unit won't prime,


YOU HAVE A STUCK INLET BALL
Have the unit in water, pressure relief valve turn the machine on and tap with a hammer at the inlet ball, This frees it up 90 of the time.
Otherwise the machine need to be disassemble

Jan 29, 2014 | Wagner SprayTech Wagner Airless Paint...

1 Answer

Will not prime


Most of the time when a unit will not prime it is because of a stuck inlet ball, I would put the intake in water turn the machine on to bleed. Then tap the machine where the paint comes in. 90% of the time this will get it going. Sometime you can stick a screw driver into the inlet ball and free it up. If this doe not work you need to take the machine apart and cleanor you have worn out packing.

Joe

Jan 23, 2014 | Wagner SprayTech Wagner Airless Paint...

1 Answer

My titan 330 airless paint spray will not shut off while primming


Airless paint sprayers should not turn off while in prime mode. As long as the prime valve is open the motor can pump paint but the system will not build any pressure. Once the prime valve is closed the pump should pump paint into the hose until it gets to the pressure level required to turn the motor off. If the pump does not turn off with the prime valve closed, it could be that the spring in the valve is weak and won't hold the valve closed under pressure. If the hose is up to pressure and the motor just keeps trying to pump paint, you may have a bad pressure sensor or it is disconnected from the circuit board.

Jul 10, 2012 | Air Tools & Compressors

2 Answers

Have a Wagner Paint Crew and it started out fine and then after a half hour or so, it gradually lost pressure to a small stream, I was using new paint and I cleaned the hose, screean, intake valve, and...


hello ald... use a fine piece of wire and clean the opening that the paint comes out through. It has a tendency to fill in as you spray. Joe

Jun 28, 2011 | Wagner Plumbing

1 Answer

How to remove the Prime/Spray assembly on the Wagner Paint Crew. The Prime/Spray knob is held on by a retaining clip which I can't figure out how to remove without resorting a hammer and pry bar and risk...


You can unscrew it without removing the plastic part - just use thin vice grips and get a piece of the metal nut, unscrew down (counter clockwise) and it should come off with average pressure. I checked mine, not much to go wrong there, then screwed back in. I have similar problem with pressure, it is likely a worn O ring. Seems to be in the outlet valve as I replaced some of the inlet valve rings and same effect. Research says the outlet valve is the problem if paint comes out of the squeezed nozzel while in Prime mode, which mine does, and is likely not building the pressure as some paint is flowing back through the worn outlet parts.

Aug 06, 2010 | Wagner Power Products 0154842 Medium Spray...

2 Answers

Wagner paint crew won't build pressure or shut off. Can I test the outlet valve or the inlet valve? Or just start buying parts and hope I get the right one. ??/ Thanks..


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.

Dec 08, 2009 | Wagner Power Products 0154842 Medium Spray...

2 Answers

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.

Jul 08, 2009 | Air Tools & Compressors

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