Question about Astro Pneumatic Astro 4535 HurriClean Spray Gun Washer Pumpless Design

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Working mechanism of astro 4535 hurriclean spray gun washer

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Why the water is running from detergent siphoning tube?


The siphoning mechanism on almost all power washers use "The Venturi" effect to suck up the detergent. Basically, there's no pump...the force of the water passing the siphon hose causes a vacuum which draws the detergent up the tube. There's a small ball that is supposed to fall and block the tube when the trigger is released so it sounds like it got jammed up in there somehow. You could it apart and free it up but I would recommend just purchasing an external detergent dispenser. Home Depot carries them for about 15 bucks. They allow you to use soap with high pressure and bypass the always problematic siphon system.

Jun 08, 2014 | Troy-Bilt 2700 PSI 2.3 GPM Gas Pressure...

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I bought a honda pressure washer power boss 3000. I load the gasoline, start the machine, but pressure water is not coming out from the trigger. i tried so many things , but can t get started.


If you are using a water tank for water supply, remove the water supply line from the pressure washer and connect a water hose from a faucet. Turn the water on, then crank the engine. Pull the trigger of the spray gun until water comes out. When then water starts to spray properly the release the trigger, shut engine down with pressure on the line then reconnect the water supply from the tank to the pressure washer. If this fixes the problem then the problem was "air-locked"! Happens alot with new pressure washers that have never been run. If you need any other help, please email me @ davidandlisacampbell@yahoo.com

Feb 18, 2011 | Honda Pressure Washer PSI 3000

1 Answer

NEED OWNERS MANUAL AND PARTS LIST FOR 4535


Hi, my name is John. Welcome to FixYa. You can get it here. www.mastertoolrepair.com . Thanks for choosing FixYa....John

Dec 03, 2010 | Astro Pneumatic Astro 4535 HurriClean...

1 Answer

Won't start. Pull chord will only come out quarter of the way.


There could be two possible problems here.

1) Usually you want to squeeze the gun trigger to release backpressure on the pump so the engine will turn over easily. So hold the gun in one hand with water coming out of the gun while pulling cord.

2) The pull cord mechanism is connected to top of power washer with 3-4 bolts.
Take off those bolts and see if you can unravel the problem. The mechanism is connected to a spring and the spring pulls the cord back in ... so it seems like the rope is in a bind or the pull mechanism is bad.
We had to buy a replacement pull cord mechanism at one time for our power washer, but I forget exactly why it stopped working. We used the power washer two days a week for years. It's aggravating when it doesn't work.

Oct 17, 2010 | Briggs & Stratton Prosumer 20324 Gas...

1 Answer

How to ajust air on the gun


Air pressure to the gun is generally specified by the manufacturer. You should have a fluid volume adjustment and a fan adjustment. Set the fluid so that you are not having running/slipping material problems and the fan adjustment so that you don't have an un-coated area in the middle of the spray pattern. Hope this helps!

Apr 19, 2010 | Astro Pneumatic UCG100 Air Undercoating...

1 Answer

STARTS AND RUNS FINE BUT WHEN I START WASHING IT QUITS SPRAYING AND THEN BUILDS PRESSURE AND KILLS ENGINE


The reason it stops spraying might be a clogged gun, hose or nozzle-tip.
The reason for pressure buildup killing the engine might be a stuck unloader valve in the pump.

While you are checking each component of the "output" side, spray some penetrating lube into the "input" side of the pump (where the garden hose connects) and let it be working on the unloader valve.

Fix the spraying problem first:
Start at the nozzle and verify that it is open by using low-pressure air. Clean or replace as needed. Next check the hose (with nozzle and gun unhooked) and finally the gun/trigger mechanism.
All must be clear and open to perform correctly.

Next, pour a few ounces of power steering fluid (or similarly LIGHT oil) into the garden hose, attach it to the pump and turn on the water supply.

Leave the "output" hose, gun, etc. UNHOOKED and point the output port of the pump (where the high-pressure hose connects) towards a vacant, safe area.
Startup the engine and allow the oil in the garden hose to work its way thru. (About 1 -3 minutes of run-time.) Shut it down and attach the high-pressure hose.
Hope this solves the problem!

Oct 05, 2009 | Honda Pressure Washer PSI 3000

1 Answer

Ex-Cell VR2500 Builds Pressure but Won't Spray


I have a similar problem and diagnosed it to be a problem with the gun. I spoke to a technician that services this pressure washer and he walked me through all the diagnostic steps. The pump is working because there is pressure being built up and the gun sort of works because you can get water out before the washer is started. The technician said that the mechanism inside the gun is either clogged or broken. I am going to Home Depot or Lowes to purchase a new gun and will try it tonight. Guns are only about $30-40. He said generic is fine as long as the thread matches and PSI is in range. Good luck!

Aug 09, 2009 | Karcher 2500 PSI Pressure Washer

2 Answers

Karcher K 3.68 M operation


These units have pressure valves that automatically turn off the pump once the pressure is high enough. The pressure switches do fail and sometimes stick and act as you've described.

May 07, 2009 | Alfred Karcher K 5.93 M Electric Pressure...

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