I have a Craftsman 580.768030 pressure washer. When I crank the washer all the pressure I get is what is supplied by the inlet water hose. The pump never increases the water pressure out of the wand, usually the pump will pull the motor down a bit but no differance in the motor sound. Hate to spend the $114.00 for the O-ring and seal kit for the pump if it could be something else, any ideas? Thanks Tony
Phil, found the problem behind the unloader assembly. Works great now. Thanks for your anwser. Tony
Tony, May 2012
Could be a busted spring in the pressure control assy (easy to check) - also, dis-assemble and check for grit/dirt - a single grain of sand will give you zero pressure. After that, it's back to the $114 ......
