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How do I adjust the unloader valve on my presure washer?

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Not sure what model you have or how it is set up, but look for a large spring with a rod and nut through the center. tighten the nut to increase pressure or loosen the nut to reduce pressure.

hope that helps

Posted on Sep 12, 2009

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On my brute 2500 psi pressure washer when I let go of the trigger it kills the motor. I changed the unloader valve and still does it . Any suggestions? Thanks


Excessive pressure can stall out a motor. Try reducing by adjusting unloader valve. Clockwise turn will increase pressure, counter clockwise turn will reduce.

Oct 30, 2016 | Garden

1 Answer

Ridge presurer washer will not build presurer


Most likely broken or suck unloader valve

Aug 11, 2014 | Ridgid Garden

1 Answer

Using presure washer - released trigger on nozzle could hear motor loadig up then a pop like something rubber bursting and water poured from under side and very little presure at nozzle help please.


Hello,

It would seem that your bypass/unloader valve has failed.This will happen if a unit has been sitting and corrosion builds up in the pump head.

The valve failing has caused it to pop an o-ring or seal, it will require to be stripped down and repaired.

Brad

Jul 18, 2014 | Honda Garden

2 Answers

What is a bypass unloader


According to epowerwash.com:
"The unloader valve diverts water flow into bypass when the trigger gun valve is closed. Unloaders may be designed to respond to either an increase in pressure or a change in flow. The unloader valve may also be used for variable pressure adjustment."

More information here:
All About Unloader Valves ePowerWash

Jun 06, 2014 | Alfred Karcher Pressure Washer

1 Answer

Why is my unloader valve opening and closing when I'm not squeezing the trigger\


thats exaclty what a unloader valve does it unloads the pump when the trigger on wand is not depressed , it should however reseat and close off when trigger is pressed giving full presure to wand tip

May 11, 2014 | Northstar Professional Series Pressure...

1 Answer

How to adjust unloader valve for RD80701


Screw unloader valve out. Turn to left or till it quits killing the motor.

Nov 29, 2013 | Garden

2 Answers

ENGINE RUNS FINE WHILE HOLDING THE WAND TRIGGER BUT , WHEN I RELEASE THE TRIGGER THE ENGINE STALLS OUT


you have a faulty presure relief valve. it is building up presure and killing the engine.

Jun 16, 2011 | Devilbliss DeVILBISS Devap DVH2600...

1 Answer

Craftsman gas powered pressure washer kills motor when you release wand trigger.


The unloader/bypass valve is jamming or defective. When you are not pressing the button the water is directed through the unloader valve/check valve to recirculate.It is common for them to corrode or for the spring to break.If it has an adjustment screw on the unloading valve for unloading pressure make sure you count the turns before disassembling it to make sure you dont over pressurize it.It is not opening causing the engine to choke out.Please let me know if this helps

Jan 19, 2011 | Garden

1 Answer

II lost High Pressure while washing I laid the gun down the time cut it off aand I reseted it and had no high pressure I removed the pressure adjuster and noticed it was rusted I cleaned it and replaced it...


The pressure adjuster you are talking about is actually your unloader which is a pressure relief valve. It is normal for this to pop up and down as it moves in and out of bypass mode. Your pressure issue could be a failed unloader, valves or packings in the pump. You will need to bypass your unloader valve to find if the issue lies in the pump or if it is simply a failed unloader. If you have any questions, need parts or service, please feel free to contact me using the information below.

Sincerely,
Aron Kerr
Landa Northwest
800.247.8103
503.255.6508
www.landanw.com

Aug 17, 2010 | Honda Landa PG 3500 PSI Pressure Washer

1 Answer

Pump will not presure up


check your in take screen make sure its not plugged, look for calcium build up. then check your valve there should be six of them. my be damaged or weiring out and or plunged. if all looks good you'll need to check your unload-er valve. check your oil to make sure no water is in there, ok. good luck, let me know.

Oct 16, 2009 | Porter Cable Cable Commercial Pressure...

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