Question about DeVilbiss Garden
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Posted on Jan 02, 2017
SOURCE: pressure washer has no pressure
Try and back flush the washer..Take spay nozzle off washer and back flush with hose...If any kind of sand or deposits get into the Pump it will hold pressure valve open not letting it build pressure.after back flushing hook back up washer and before you put spar nozzle back on or start washer turn water on and make sure all air is out of washer..hook spray nozzle back up and hold it open with washer still off.when you see that there is no more air coming out of washer start it and you should have pressure.Hope this helps you and have a great day!!
Posted on Apr 05, 2009
common for not starting unless trigger engaged as you are turning the pump as well as engine creating pressure,as for stalling pump has unloader valve which is probably in need of grease(use good silicone grease)this allows water to ciculate when trigger released.
Posted on Apr 20, 2009
if the machine is running on suction, ie sucking out of a barrel there may be an air leak on the suction hose or pump. it will pull air easier than pulling water .
put the machine under mains water pressure, hose pipe straight from tap to pump.
check all around the pump and inlet pipes for leaks.
if water leaking this needs rectifiying for it to work on suction.
run the pressure washer while on mains pressure with the hose on, does this make a difference?
if not then probably the unloader is stuck in the pump head. remove unloader , clean and replace it
parts breakdowns are available on the internet for your machine.
possibly valves stuck, or the valve springs have broken, seen this quite few times on these machines. if so replace springs .
These sort of machines do not last very long anyway, about 50 hours use if your lucky.
Posted on Jul 22, 2009
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
Posted on Jul 30, 2009
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