Question about Air Tools & Compressors
It was getting hard to prime when got it primed within a couple of mins it would blow out o-rings while spraying
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Posted on Jan 02, 2017
SOURCE: AL2340 will not prime
I worked at a tool rental center when I was going to college and learned many useful tips / tricks about airless sprayers. Airless sprayers have two check valves/balls that can stick on their seats or stay open due to chips of paint on seat. Easy method to prime is to remove intake filter from machine, tilt the machine back far enough so that the pick-up tube is pointing up high enough to pour water in tube until full; hold in this position and turn on machine. If water is sucked in turn off machine and tilt machine into pail of water and restart to check for prime. If it still will not prime remove water from pickup tube and use air pressure into tube with bypass valve open. Air pressure will attempt to release the stuck lower check ball. If air pressure does not release stuck ball you may have to use physical pressure against ball. If lower check ball was stuck you can assume that the upper check ball is probably stuck also. An aid to loosen stickey valves is to pour solvent into pickup tube with machine tilted back as before leave overnite. Enjoy
Posted on Dec 11, 2008
Try to fill it with water and spray. YOu may have paint buildup in the system, and will have to disassemble it to clean it
Posted on Nov 08, 2009
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.
Posted on Aug 03, 2010
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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