I know enfuff about pumps to know that if four bolts are coming out and all four are under pressure, the pump is not coming apart in the correct manor. The only way I could get full pressure was to take the tip off , press trigger and then put tip back on. Thank you so much for taking your time and knowledge to support my concerns. Well, the previous threads have touched on a problem I've had with my pressure washer. Craftsman 6.5 hp self-propelled lawn mower Karcher makes all types/styles of pressure washers through their own brand and subsidiary brands including Hotsy, Shark and Landa. (5GPM)

Karcher pressure washers have either electrical or gasoline power. You may find other parts that need replacing, and you may find the check valves are simply not working because of mineral buildup from hard water and will still be serviceable if cleaned. I tried using it again today with mixed results.

Dealer for most engine lines.Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts.

I'll look and see what kind of pump diagram I can find for that model.

I know a few things that aren't covered in the normal troubleshooting that may help.This results in a pulsating effect as the pressure builds and is relieved, and the user grows annoyed Sounds like that could be the problem. They are easily the biggest pressure washer maker and seller in the world. after watching various video clips I decided to replace the cylinder head but it made no difference.

You want volume not pressure delivered to the washer so a bigger diameter hose is better also length of hose, shorter is better....just a maybe and FYI On the pump there is a hose coming off about 16-18 inches long and capped at the end - this is tie wrapped to another area. We have a large stock of Karcher Pressure Washer Pulsing On Standby, see wholesale lisitngs on Ebay!

They truly know what they are talking about, and they actually care about you.

While it does build a bit more presure with the engine running, its apparent when once in a while it surges and produces usable high pressure for a second at best.

Do all karcher electric machines have the same cylinder head. I have check for obstructions in the wand and hose but they seem to be clear.Hi , I have a K'archer K4.650 pressure washer purchases approximately 2.5 years ago. !Thank you for all your help. By continuing to use this site you consent to the use of cookies on your device as described in our By continuing to use this site you consent to the use of cookies on your device as described in our I have a Karcher K3.97M 1600psi pressure washer that surges or pulsates when you turn on the switch. I have the AA model which has water pouring out of the unit but the cost of cylinder head plus cover part is expensive.No they don’t all use the same for the cylinder head, my k3.575 (sometimes called the jubilee) uses a different to most others and the part number is 9.001-693.0. Would have full pressure and then shut off nozzle and then hit nozzle and little pressure.

Hello, i have a Dewalt pressure washer. Recently I used it to clean all the concrete drive ways and paths around my house. The pump assy. To cure this, I talked to the fine folks at First, let's get the rest of the number on the tag after the K3.97M. TowaI have a Karcher 3k high pressure washer with a GX270 Honda Power Plant. It is usually a ball and seat with a spring...inline between the pump valve body outlet and the wand hose connection.

It should be able to open and close valves or ports to the pump and the wand. Ahhhh....the spring was it. J. Boggs I replaced the hose but that didn't fix it. It does now. Used a shorter hose nothing works. Karcher is a German manufacturer of several types of cleaning and maintenance equipment for residential and commercial users. I wish the same cheese, if I could locate a parts breakdown I would feel comfortable tearing into it, like I said I started to pull it apart but the 4 bolts holding the brass (valve unit? Replace the filter and operate the power washer normally.Clear any debris or build-up that may be obstructing the spray nozzle by sliding a sewing needle into the tiny opening at the tip of the nozzle.

Used a shorter hose nothing works. Just want to make sure we rule out all the external possibilities before we pinpoint the pump as the cause.Pulsation is caused by the unloader valve opening and closing. I am looking at a Karcher pressure washer Model # K 2400 HH w/Honda 5HP. It should be very close to the connection to the wand hose.

The washer surges then drops all pressure then surges again continually. Water flow from the hoI have a Karcher power washer - I allowed my neighbor to use it first and it worked well - when I tried to use it - following the directions exactly - I reached step 7 and turned on the high pressyre I have a G 2600VH Washer and am having problems with the pump.It surges as if it is sucking air However. Everything works fine now.. ), or to establish a professional-client relationship.

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