Model #580768324 CRAFTSMAN Power Washer, Gas

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Question and Answers

Q:

Removing black plastic unloaded plug 580768324 Craftsman Pressure washer

Q:

pressure washer dies when triger is let go.

A:

The Managemylife web site is a good resource to find out what may be happening with your Pressure Washer. I did some research for you at Managemylife.com and found an excellent article that also has multiple expert answers at the bottom of the web page that addresses the most common questions that have been asked by other members. I hope this will help until your expert can answer your specific question. I attached the link below.

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Alina -
June 15, 2013
A:

Thank you for your question.
I am sorry you are having a problem with your Craftsman pressure washer model 580768324.  When you release the trigger on the gun with the engine running, the unloader valve inside the pump opens and lets the water circulate inside the pump until you pull the trigger again.
If the unloader valve is gummed up with hard water deposits or deposits from the detergent dispenser, it doesn't slide back and let the water recirculate. This causes the pressure inside the pump to rise until it stalls the engine.
You will need to clean or replace the unloader valve on your pressure washer. Some customer have had some luck taking the unloader out and cleaning it with WD-40 and a scotch brite pad. The image below shows where the unloader is located. Click on the image to enlarge it.
 If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears  technician.  Here is a link that will provide the nearest drop-off locations:  Sears Home Services.

I hope this is helpful. Please let me know if you need further assistance.
 
Thank you for using Manage my life.
Mark T.

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Mark T -
Sears Technician
June 17, 2013
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Q:

my craftsman pressure washer Model #580768324

A:

Some issues can be hard to understand. Below I attached some links that will help you with your issue. An expert will also respond shortly to provide you with a detailed answer. I hope these links are useful!

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Jackie S -
June 06, 2011
A:

Thank you for your question.

I can understand wanting the pressure washer to run.

If I understand you correctly the engine will not start with the water hose connected to the pump.

I would suggest holding the nozzle trigger open when trying to start the engine and it will take the back pressure off when turning the engine over.

If that works you may have to look at the unloader valve on the pump to see if it is not working properly for engine start up.

If you engine needs service and is not starting easily then it may need a tune up so it will start easier.

Please let me know if the unit will start easier when pulling the handle.

Thank you for using Manage My Life.

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Sam A -
Sears Technician
June 08, 2011
A:

what part number is the unloader valve where is it located in the parts diagram Engine starts without the water hose connected so am thinking its in the pump thanks

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thestump -
June 08, 2011
A:

Thank you for the update. The part number for the un-loader is key # 25 part number: 187879GS for about $16.00. You will need to remove the pump from the engine to install this part. I hope this will help. Sam A.

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Sam A -
Sears Technician
June 09, 2011
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