Model #580752102 CRAFTSMAN Power Washer, Gas

  • Main Unit
    3 Results
  • Pump
    3 Results
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Question and Answers

Q:

No Pressure from Pressure Washer

A:

The unloader will need to be adjusted. Typically, there is a gauge that should be connected, but it's rather pricey for a one time repair. Turn the nut and test it until is seems pretty close to be the right pressure. Do know that if you over do it and the pressure is too much (more than designed for) the pump can catastrophically fail. Because of this, err on the side of caution and maybe adjust it until it seems close to right but maybe a little bit lower than what you remember. If you're really set on having the machine put out exactly the pressure it should, I recommend you take it a shop so they can put a gauge on it and get it exact.

Thank you for using Manage My Life!

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Wade_B -
Sears Technician
September 23, 2013
A:

I tried adjusting the unloader but nothing changed. What I did was to first loosen the small locknut. I then used a screwdriver to hold the "stem" in place and then a wrench to tighten the larger nut on top of the spring. The result, of course, was to compress the spring. Is this the proper method to adjust the unloader? I would tighten it a turn or so, squeeze the trigger on the wand--no change--then do it again, still no change. I have ordered a check valve kit but don't have much confidence that it will help. I do still question the unloader, but just don't know how to check it--it is brand new. The water still flows through the system only at house pressure not "high pressure."

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wingrider6 -
September 24, 2013
A:

You're adjusting the unloader correctly. Have you looked at the check valves? Most of the time, if they're the problem, then it'll be obvious when you look at them. If they're on the way, go ahead and install the new ones anyway. If that doesn't make a difference, you really need to take this in to have it serviced. I'd hate for the pump to get destroyed due to a blockage of some sort that you couldn't know about.

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Wade_B -
Sears Technician
September 25, 2013
A:

Well the kit did not work. I didn't think it would as I could not detect any fault in the six check valves or anything else for that matter. If there is a fault it must be up inside the pump itself which would require a new pump. I know it's not froze up because you can pull the rope and see the pistons move up and down (or course that's with the bottom pulled off). At this time I have about $131 invested and have no desire to invest any more money. The machine is setting out at the curb waiting for the junk man who comes by every few days. Too bad, real good engine on it, starts first pull almost every time. Oh well it's only money, they say you can't take it with you any way. The sad part is there was a time where I could always get something going no matter what, but maybe it's time to retire from DIY.

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wingrider6 -
September 26, 2013
A:

Oh, thanks Wade for you help.

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wingrider6 -
September 26, 2013
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Q:

No pressure release 580.752102

A:

Searspartsdirect.com is always a great resource to find the answers to your parts questions. Your Sears partsdirect expert will research your question and respond within two business days but usually sooner. Thank you for using Searspartsdirect.com!

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Marc -
August 05, 2013
A:

Thanks for using ManageMyLife.com. I am sorry to hear of the issues with pressure on the pressure washer, I know how frustrating that is.

One thing I want to mention before getting too involved is the benefit of using Pump Saver before storage or in between usages. It will help to lubricate the internal components of the pump and remove any mineral deposits. It's good to use and have around.

There are a number or reasons for this to happen:

  1. Make sure the water hose is not kinked and is supplying full force.
  2. Make sure the high pressure hose is not kinked.
  3. Remove the water inlet hose and check the screen to make sure it is clean.
  4. Remove the high pressure hose and open the water valve to let water run through the pump to purge out any air.

Outside of these easy checklist items, given what it's doing, I have to think the unloader is stuck. If the unloader sticks, the pump will just continue to pass the water around in the pump and never allow it to spray. At some point with the water cycling within itself, the thermal relief will push the water out due to excessive heat to prevent the pump from overheating itself.

I recommend you replace the unloader valve as long as you've gone through the other checklist items and have ruled them out. If the unloader kit is needed, just click the blue link below to be directed to the PartsDirect page to view and purchase the kit if needed. Hopefully this helps.

Unloader Kit for model 580752102

If you have any further questions or inquiries, please don't hesitate to ask. Thank you for using ManageMyLife.com.

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Jeff Wallace Sr -
Sears Technician
August 05, 2013
A:

Obviously since I can get water out of the nozzle none of the 4 items apply. I thought of just buying the unloader kit but I have two problems with that. As I look at the parts diagram of the unloader and all of the small pieces I have to wonder: "What in the world could cost $60?" I could add $30, go a local store and buy a name brand 1800 psi electric pressure washer. The second reason is if I can't get the old unloader out, what am I going to do with a new one? I removed the two nuts and spring from the threaded rod, pulled the retaining pin but I can't pull out the rod (unloader?). Is that what is suppose to happen? Should I be able to pull the whole unloader out after removing the pin? The threaded rod will move in-and-out about 1/8". I'm going to pull the manifold again today and try soaking it in WD-40 some more but I understand there are some plastic parts there and don't know what that will do to them. Any suggestions for removing the unloader from the manifold!

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wingrider6 -
August 06, 2013
A:

Another question: With all of the messing around I did with this thing, removing nuts and spring, turning the threaded rod, etc. could it be out of adjustment now? Since there's a screwdriver slot in the end of the rod I assume you should be able to adjust it with that or with the one large nut that compresses the spring (I assume the small nut is just a locking nut).

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wingrider6 -
August 06, 2013
A:

your going to need someone with actual hands on experience repairing pressure washers for a correct answer. I would post back your question asking for Wade to answer as the expert.

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TC -
August 06, 2013
A:

Thanks for the response and for using ManageMyLife.com.

Lay the pressure washer on its back so access to the unloader valve is straight up.

Use a long extension so you can reach into the unloader and put down pressure on the nut as you loosen it because of the tension spring inside.

Once you have it off you can clean any water scale out of the valve.

When you go to put it back be very careful that you are straight when putting the nut back on and push down and first turn the nut backwards until you feel the starter thread drop into position and you can turn the cap nut clockwise to put it back on.

Just put the cap on but do not compress the spring. The spring tension is preset by the spring so there is not tension adjustment.

You may end up having to replace the unloader valve but you can try this first to see if it will work.

Thanks for using ManageMyLife.com.

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Jeff Wallace Sr -
Sears Technician
August 06, 2013
A:

Don't recognize anything your referring to Josh. However, it's a moot point. I removed the manifold and had the unit on my workbench. I watched a video on You-tube about replacing the unloader. It said to remove the pin, using a small blade screwdriver pry up on the unloader until it comes out. I tried that and worked my way around the big spring and the only thing it did was break the threaded rod off. That unloader is stuck in the manifold with no way to remove it. It's going to require a new unloader and manifold to fix. That's $100 on Amazon. Instead I ordered an 1800psi electric model that I had before this one. Too bad, unit sat for two years and motor started on second pull! I'm giving it away.

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wingrider6 -
August 06, 2013
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Q:

how do I clean the pressure selection wand on my craftsman pressure washer?

A:

I realize it is important to keep the pressure selection wand on the Craftsman pressure washer working properly.  I hope the link I am providing is helpful.  An expert will respond with additional information to your specific question within two business days, usually sooner.  Thanks for your patience.

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Anna T -
April 28, 2013
A:

I posted a page from the owner's manual in the image below that shows how to clean the wand (page 16).

 

Here is a link for the full owner's manual: Craftsman Pressure Washer Model 580.752102 Owner's Manual

 

If you need more help, let us know. 

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Lyle W -
Sears Technician
April 30, 2013
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