I stripped the outlet tube on the plastic threads how do you replace it
SOURCE: Karcher HD 655 S Does not come up to full pressure
yes...check the check valve. A one-way directional valve, this part is also known as a DUMP valve. It opens when too much pressure builds in the hand wand (when not spraying water) in order to protect the pump, by returning the high pressure to its source reservoir. I suspect the DUMP valve is stuck in open condition (or nearly open).
SOURCE: karcher k7.80 pressure washr
I have a Karcher K 3.86 M electric PW with a similar problem: water leaks from the pump near the outlet and the pressure surges on and off continuously at intervals of 1-2 seconds. The leak appears to be coming from a very thin crack in the plastic pump head in what I think is the "unloader" valve portion. I read elsewhere that if you leave water in these PW's and it freezes it will crack, causing leaks. I don't know how you can empty all the water out so I think we must store these PW's in areas that won't freeze in winter.
SOURCE: Karcher pressure washer 411A. loss of pressure...
411a when i turn on it gos for 1 min then i have too press it on and off 3or 4 times befor it works and it only stays on for 1 min.
SOURCE: My 2200 Gc Karcher pressure washer oil got mixed
If you are talking about the oil in the pump then it should be 10W30 but must be NON DETERGENT. Remember the reservoir should only be 1/3 full
SOURCE: Unloader Valve - Karcher Pressure Washer
where is the unloader valve locaed on a Briggs Stratton pressure washer?
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