Question about Karcher 2500 PSI Pressure Washer

1 Answer

Karcher HD3101DR wHERE IS THE UNLOADER VALVE ON THIS UNIT CAN I GET A PICTURE/DIAGRAM???

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 313 Answers

Posted on Jul 08, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Want to know what the black Knob, I think called unloader valve is used


Hubert, The unloader valve is like a by pass for the water and regulates/controls water pressure and redirects water when gun trigger is released. Check the attached links,instruction and guides to learn more about Pumps/unloader, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Pressure Washer Unloader Valve
How to replace an unloader valve on your pressure washer pump
All About Unloader Valves ePowerWash
How to Replace an Unloader Valve on Pressure Washer Repair Guide Help...

May 17, 2016 | Pressure Washers

1 Answer

How to adjust the unloader valve.


With a pressure gauge. If it's a home duty model it can usually be turned all the way in without damaging anything. Try turning it all the way in and fire it up. If the engine/motor doesn't groan or stop, you're probably okay. If the unit stops or slows down when gun is closed, immediately open gun, then shut down. With unit off, back off on unloader setting and set with pressure gauge, or have it done by a professional.

Aug 23, 2014 | Craftsman 3000 PSI 27 GPM Briggs ...

1 Answer

Do the spring end caps inside the 315747GS unloader valve face the spring or the ends of the valve


This parts diagram for the pump should answer your question http://lawnandgarden.manualsonline.com/manuals/mfg/craftsman/580751651.html?p=22

Jun 08, 2014 | Craftsman 2500 PSI Briggs & Stratton...

1 Answer

DPD 3100 gas pressure washer. No water going through pressure washer. Have taken screen completely out and still no water moving through


See this diagram:
http://www.mastertoolrepair.com/images/DPD3100_pump.jpg?osCsid=1f3m03ijp5lcht6569kran6rk2

Remove Items 122 (Un;loader) and 138 (Thermail relief). Clean them up as best you can with a nylon brush under some slow running water. Dis-assemble the unloader valve completly to clean (both ends). Then lubrcate them with White Grease and reinstall both parts AFTER placing White grease in the cavity the valves mount into. Very briefly... Test water flow with the engine not running Then start the unit with water off and let run 30 seconds. Turn off engine. Turn ON water supply and test water flow engine OFF. Note you will get a certain amount of white grease initially that passes through the unit. Start unit and rapidly actuate the trigger 1/2 second on 1/2 second off multiple times to force the unloader valve to cycle.

You can get parts here if either of the valves have completly failed:
http://www.mastertoolrepair.com/dewalt-dpd3100-n001194-pump-p-59405.html

The above steps should get your presure washer working properly again.
Thanks for choosing FixYa,
Kelly

Sep 03, 2011 | Dewalt DPD3100 Gas Pressure Washer

1 Answer

I have a 4,000 psi, 4.5 gpm 45G cat pump powered by a 13 hp honda engine I can not seem to be able to adjust the unloader valve to give me pressure over 950 psi and even at lower pressures, the pump...


I would just purchase a new unloader valve, they usually aren't worth rebuilding. I would like to have a picture of the set up that you have, if you can send me a picture of the unloader region of the pump I can get you are price on a new one. email is justin@wmpcs.com

Oct 22, 2010 | Honda Pressure Washer PSI 3000

1 Answer

Coleman model APW-120 May have frozen while stored over winter the unit is new but water was not completly removed before storage. Problem motor runs continuosly but there is no water pressure I have...


Whar has happened is that your unloader / bypass valve is sticking. This is due to minor corrosion and having water in the unit over the winter. Most of the time they will sanp out it if you do the following:

Add 3 - 4 oz of oil into the water supply connection and briefly and I mean very briefly switch on the unit then right back off. Add more oil to the water supply connection and then let it sit overnight.

Then next day turn the unit on briefly and let it sit another 30 minutes. After this you connect all hoses making sure to purge the air our of the supply hose BEFORE you connect the to the unit. Then once you turn the unit on rapidly trim cycle the wand trigger. Your goal here is to cause a water hammer of the unloader / bypass valve to get the spring and cupped seal to move in the housing. Pause briefly and see if pressure builds then fan the wand trigger again. This can take a few minutes to get it to work but the routine of pausing waiting momentarily and rapidly tripping the wand trigger is what should get the unit going again.

If this does not work you will have to take the unit apart dis-assemble the unloader / bypass vavle on the output side of the pump and remove the corrosion on the spring and the housing.


Once your done cleaning up the bypass unloader valve before you put it back in the housing place a liberal amount of Lubriplate #105 White Grease on the spring and inside the housing on the mating surfaces. (#105 white grease is available at any Auto Parts store. It is in a 3 - 5 oz plastic tube)

Re-assemble the unloader / bypass valve an it should work like a champ.

Thanks for choosing FixYa.

Kelly

Sep 16, 2010 | Coleman Powermate DuraBuilt 1400 PSI...

1 Answer

K5.140 makes a revving noise when releasing the


Before you do the below steps check the water supply inlet screen for obstructions where the water hose connects to the unit. If you notice debris remove and clean the screen under running water with a small NYLON brush.

The bypass unloader valve is triggering earlier than it should. You can lubricate this by adding oil to the water supply inlet (at least 3 oz.) and very briefly switching the unit on then off 0.5 seconds. Then let is sit overnight. The next day connect power briefly and again cycle the unit on then off for 0.5 seconds. Connect the water supply and then purge the water wand hose into a bucket to catch the oil before use. After this restart the unit and operate the wand trigger under full pressure at 0.5 second intervals to ;scycle the bypass / unloader valve inside the pump. This method has worked in about 95\0 % of the machines I have worked on. The oil lubricates and fattens the seals in the bypass / unloader valve. It eihter works the first time or the seals are torn in the unloader valve and must be replaced. With only 3 uses I think your pretty much in the clear and will not need new seals.

Thanks for using FixYa.

Kelly

May 16, 2010 | Alfred Karcher K 5.93 M Electric Pressure...

1 Answer

No power


The most common problem is the unloader valve.The valve that you use to adjust the pressure need to come out and then free up the unloader valve with some penatrating oil and maybe even some emery cloth.If you cant free it up then it will have to be replaced.

May 09, 2010 | Karcher K2.26 Electric Power Washer

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 | Pressure Washers

1 Answer

No pressure / Karcher G 2400 HH


Hi ruthkapres:
Here is a diagram. The unloader/spill valve is #12 on page D2 or F2 depending on your model. You must pull it out, inspect the o-rings for dents or tears and make sure the valve is lubricated with a good water proof lubricant.

Jul 14, 2009 | Karcher G3025OH Pressure Washer

Not finding what you are looking for?
Karcher 2500 PSI Pressure Washer Logo

709 people viewed this question

Ask a Question

Usually answered in minutes!

Top Karcher Pressure Washers Experts

John Trevino

Level 3 Expert

1378 Answers

andy just round the...

Level 1 Expert

47 Answers

EugenesDIYDen
EugenesDIYDen

Level 3 Expert

479 Answers

Are you a Karcher Pressure Washer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...