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Sprayer will not stop pumping when switched to pump mode after primed it will not shut down it just keeps pumping. .

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Paint sprayer.
Flip lever down to prime > paint comes out small plastic hose.
Flip lever up to put pressure on spray line.

Problem: prime keeps running and spray line never gets pressure.

Future solution:
You did not clean sprayer very well last time, or it is rusted. When cleaning, run full 5 gallons of cleaner through machine twice.
You should fill spray line and pump with kerosene if machine sits idle more than few days.
We all forget.

Good news: you have prime. If machine doesn't prime, you probably have to disassemble.

More good news: There are two steel balls inside pump. Tap top one with hammer to loosen. Keep machine running. Keep lever up. Start tapping top one. Tap a little harder... keep tapping ... sometimes it will not free up ... take apart pipe and see if you can nudge ball loose >> be careful not to scratch anything... the sprayer is high pressure and all parts have to fit
sprayer will not stop pumping
when - 9adaee3.jpg

Posted on Oct 07, 2010

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Posted on Jan 02, 2017

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