Question about Karcher Garden
Hi, I have a Karcher 3.190 and it has broken 3 x coupling connectors that connect to the garden hose (connected to the mains water supply). I now use brass, but they don't appear to last very long either. Any suggestions?
Use high quality brass fitting, low quality brass will break also,replace male and female side with matching brands
Posted on Apr 21, 2014
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Posted on Jan 02, 2017
It is easy to check if your hose and quick connects are supplying enough water to the pump. Your pressure washer gallon per minuite requirements are printed on the machine and also on the pressure tips in GPM. Your post indicates 2.5 gpm but check your documentation of GPM. Next remove the tip from the wand and connect your hose with current quick connects to the machine. Start engine and direct the pressure wand into a bucket for exactly one minute. Measure the amount of water in the bucket, it should be very close to stated gallons. Do the same test with tip installed and compare measurement. If pump is starving for water you will not get proper amount of water in the bucket and the water hose will collapse. Two to four gallons of water per minute is not very demanding and should be delivered even with very small opening. You can even just direct the hose into the bucket for one minute and check how much water your hose is capable of delivering. I believe that you will find no problem with water delivery to pump. I would certainly enlighten Northern with your findings and question their evaluation. When you start using your pressure washer again try using it at lowest pressure to get the job done. Lowering the pressure to about 75% of max will increase the life of the pump and engine. Good luck with you pump
Posted on May 10, 2009
sounds like you need a seal and bladder rebuild < if you liver in a cold environmet for winters please dont forget to winterize your washres every year before winter
Posted on Sep 15, 2009
SOURCE: The motor keeps surging
If there's a lot of sediment in your water supply, there's a chance that sediment has gummed up the pressure switches. I'm assuming it has a full power switch and high power switch. It runs on full power until a pressure switch is satisfied, and runs on low power to slowly build the pressure back up, at which a second switch is satisfied from the pressure and turns the motor off. These things are not easy to work on, and are made of metal probably too fragile to try any chemicals. You should probably contact the manufacturer.
Posted on Sep 19, 2009
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I have a larger gas powered karcher, just make sure the water going to your karcher is not obstructed from its path. on mine i bought a goodyear hose that can be purchased at northern tools or any hardware store. and use it just for pressure washing. good luck!
Posted on Jan 04, 2011
Here is the offical link to manuals and warranty cards for the residential models of Karcher Pressure Washers
Posted on Mar 04, 2012
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