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Unloader valve cleaning - Task Force Tf2500

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? more info plz ?

Posted on May 15, 2014

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Posted on Jan 02, 2017

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Sherry air compressor motor not cutting in struggling to turn think unloader valve not working not sure where it is


Hi curzonsparks...
Your unloader valve will be on the compressed air side of your compressor...
Look to where some lines are running to the top of the cylinders...somewhere on those lines will be the unloader valve...take it apart and clean it, or replace it.
Please take time to rate me

Sep 22, 2011 | Air Tools & Compressors

2 Answers

I have a vt631401aj campbell hausfeld compressor. when it builds pressure to 135 psi, the compressor shuts down and immediatly starts dumping air until it goes down to 90 psi. It then stops dumping the...


John: I had a similar problem with a brand new CH-made compressor. The problem was not with the unloader valve, but with the check valve located where the air from the pump enters the tank. The check valve was not seating correctly due to brass filings from manufacture. The defective check valve was allowing air to escape back the wrong way from the tank to the pressure switch and through the unloader valve. This backflow from the tank would start to happen when the pump stopped after reaching high pressure. The back flow would continue until the pump restarted at the low pressure point. This cycling would continue as you described. Once I cleaned the check valve, everything (including the unloader valve) started working correctly. I hope this helps. And remember, don't work on these when they are under pressure and always wear safety glasses.

Sep 18, 2011 | Campbell Hausfeld Air Tools & Compressors

1 Answer

Pressure off and on every few seconds with my karcher 3000BH


hi there rjcomer2

here is web site for parts
http://www.ereplacementparts.com/karcher-2500-11944010-pressure-washer-parts-c-33388_33389_33973.html

sounds like you have a unloader valve problem or a crack in the pressure manifold housing between pressure outlet and unloader valve assy allowing unloader to cycle on/ off

or some dirt trapped in the unloader valve seat , make sure you have good supply of water - ie good flow from tap to pump

try cleaning unloader 1st and fitting in line tap filter

hope it helps

pauly46

May 20, 2011 | Karcher 2500 PSI Pressure Washer

2 Answers

I HAVE ZT30 ATLASCOPCO AIR COMPRESSOR.THE FAULT PROBLEM ON IT NOW IS THAT IT DOES NOT COMPRESS(LOAD) AND DISCHARGE (UNLOAD) AUTOMATICALLY, IT LOADS AND UNLOAD ONLY IF I MANUALLY OPEN THE MANUAL VENT...


It sounds like the unload valve might be clogged up. Try taking it off anf cleaning it back up. If the compressor is older or has had a lot of use sometimnes when the rings wear oil and gunge will get into the valve and gum it up. good luck

Mar 10, 2011 | Air Tools & Compressors

1 Answer

After removing the unloader valve and cleaning i


If you have pulsating usually you have at least one of the six check valves stuck open, so you're only running on two cylinders. You might have got some of your plumbers " grease" in the check valve. (Do you mean pipe dope?) three of the check valves shold be accessable from the outside of your pump but the other three are inside. You can get parts for your unit from www.pressure-washer-parts.com


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Jul 19, 2010 | Alfred Karcher K2400HH 5 Hp 2.5 Gpm @ 2400...

1 Answer

Engine will not start when the water is on. You can start the engine and then turn the water on but it will kill the engine. I have tried to clean the unloader valve.


To isolate whether or not the unloader valve is still stuck or sticking, try starting the unit with the wan trigger engaged water coming out to spray. If the unit runs while wan trigger is engaged and shut down when released your unloader valve isn't working. Hope this helps God Bless

Sep 18, 2009 | Garden

1 Answer

Clean and unloader valve on Karcher hd3500 pressure washer -intermittent pressure on and off. Cleaned inlet screen. Think unloader valve is is under pressure knob? Will cleaning help?


Hi:
Cleaning it is not enough. You need to make sure the o-rings are in good shape and grease it with a very very good waterproof grease. Here is a schematic of the pump. The unloader is parts 7 to 13 on D-2

Sep 08, 2009 | Karcher Garden

1 Answer

How to clean unloader valve..


The Karcher K2400HH and G2400HH do not have an unloader valve, they have a spill valve which is located under the black cap on top of the pump.

The spill valve needs to be removed and the side walls of the hole it sits in need to be wire brushed to remove deposits. then you can put it back in and put the pump back together.

Jul 03, 2009 | Garden

1 Answer

How do you clean the unloader valve on a power washer pump?


The unloader valve usually is replaced. I dont know if you can get o-rings for it. But if you want to take it apart, there will be a crown or cap style nut just below the spring. Unscrew it completely and you will be able to remove the spool. There is just a series of o-rings on it.

May 10, 2009 | Karcher 2500 PSI Pressure Washer

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