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Pressure washer - no water flow

Craftsman pressure washer model 580.752000 I changed pump oil and engine oil before start up. It has been working fine for years but this year I hooked water hose to it and cannot get any water flow out of pump to purge air before I start up engine. Wand and wand hose are not the problem. I cannot see any obstruction on inlet hook up. It's like something is not allowing water to work it's way through? Can you help?

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Is there a check valve on the hose inlet that is stuck, and won't let the water in???????

Posted on Jul 08, 2009

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Craftsman 2200PSI pressure washer, part #580.752700 dies when trigger off.


NEVER start an engine on a power washer with pump attached. You will damage pump and get no or very little pressure. Replacing pump only fix. Pump for this washer about $49. Check spring on carb for throttle open/close

Jun 10, 2016 | Craftsman Garden

1 Answer

Location of pump oil input valve


Hi
Im surprised that this model pump has a oil refill. Most pumps of this size arent refillable. This looks to be a pump made by FAIP. Its an ok pump but I would recommend using it until it fails and then replace with an AR RMW pump. Much easier to get parts for. Here is a diagram of your pump...The oil refill plug is on the side of the pump...that is located under your engine. You want to get the recommended oil for your pump. Most pump oils are 30 weight non-detergent but these small pumps take an oil specific to only them. So follow your specs...your diagram is here http www searspartsdirect com Craftsman Power washer Parts Model 580752330...
and your manual is here 580752330 CRAFTSMAN PRESSURE WASHER Manual
Hope this helps

Sep 20, 2014 | Craftsman Garden

2 Answers

Water flows thru the pressure washer pump and out of wand, when I start the motor flow stops. I have a craftsman model # 580.752060 I've taken pump apart and there are no obstructions that I can...


Hi,

Let the water run for a longer time. "Walk" the hoses, from the faucet to the pump and then to the nozzle, holding the hoses up to displace any trapped air in the lines through the pump and out the nozzle. What it sounds like is that air is reaching the pump. When it does, it cavitates, and no water can be pumped. Tighten all of your hose fittings securely. Try holding the trigger down while starting the washer. It may be easier with another person helping.
Best regards, --W/D--

Jul 08, 2011 | Craftsman 2500 PSI Briggs Stratton...

1 Answer

Craftsman pressure washer with honda engine. low pressure and volume on high pressure setting. lots of water volume on low pressure setting. Screens not clogged.


Sounds like pump is not making pressure. Thats why you get flow, but no pressure.
If it sat for awhile, check shaft connection to pump. Sometimes the impeller or shaft will shear partially due to corrosion when stored. Seals on pump valves could be gone too. Get an exploded diagram, usually from owners manual, easily found for this model. Parts list should have "pump repair kit" with everything needed to bring it back to life.
You and a friend put it on the bench to work on it and save your back. The pumps are pretty easy to take apart and put back in working order.

Oct 25, 2009 | Garden

1 Answer

OUR KARCHER 2600 PSI PRESSURE WASHER W/ HONDA ENGINE WON'T START. WE BOUGHT IT A SAM'S CLUB LAST YEAR AND PROBABLY HAS ONLY BEEN USED ABOUT 4 TIMES. PLEASE ADVISE.


Hello:
Have you tried changing the gas, Especially, if it has been in the machine of a while. Also some Honda engines will not start if the oil is low. Also try removing the high pressure hose before you start it? Do not run it very long without water flowing through the pump, though.

Sep 20, 2009 | Karcher Garden

1 Answer

Mi-t-m 4003 pressure washer has no pressure


You did not let it freeze did you?
If so, pump is probably bad. Other than that, check for obstruction in intake screen, make sure water is flowing through unit before pulling trigger. On gas models, water must flow before starting engine, otherwise pumps seals will go bad, because water keeps the lubed/cooled.

Sep 15, 2009 | Garden

1 Answer

Engine appears locked up as it won't wind up to start


Try turning the water almost off at the faucet and then loosening the water feed hose connection where it attaches to the washer. Sometimes the pressure in the pump is so high that it will effectively lock the engine and you need to relieve the pressure to be able to restart it. Once it does restart, get the water flow back ASAP as the water is used for cooling and it needs to be there quickly.

Aug 16, 2009 | Karcher 2500 PSI Pressure Washer

1 Answer

Excell vr2500 pressure washer ,no pressure, took off high pressure hose at bottom of washer , get water flow, but flow does not change when engine is running full throttle


check the water filter ---high pressurehose must have bbackpressure to develop pressure so disconecting it wont acheive ,much ,if you have agood water supply ,oil in the pump--- adjust pressure by srewing the brass fitting that the pressure hose attachesto, down that is clock wise a couple of turns or so and see if that makes a difference if not seals in the pumpmay be gone tha t should show by water in the oil

Jul 29, 2009 | Garden

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