Karcher K 301 domestic pressure washer repairs?

Question:How can I repair it?, motor works ok, water flows without pressure (no leaks), I disasembled it and everything looks ok, what piece should I replace? Washers? rubber rings? All check valves are complete and seem to work

Answers:
May be that the pressure pump is shot. If the unit is not old Karcher may cover under warranty or may assist in determining the problem.

I replaced the pump on my 5hp Gas powered unit for around $75. I found a vendor on Ebay. I didn't bother with trying to repair as it can be quite complex and hard to troubleshoot.

With a Karcher the repair (or even the parts alone) may be more than a new unit.

Here's a link to a place that sells repair kits: http://www.pressureparts.com/u-pumpkits-...