To state the obvious, we're looking at an electrical problem. However, a 'motor won't go' problem does narrow things down a lot.

389 Answers SOURCE: Hi Steve, In 3 years of repairing pressure washers I've only ever seen one of these, and am having a hard time remembering much about it, except that it was really awkward to work on! Strictly speaking, many small pressure washer repairs are uneconomical, because the labour time involved costs almost as much as the machine is worth.

A worn out nozzel, will result in low prssure too. I wish to add that I assume that you have the correct lance and correct nozzel size. If with a new spill valve, there is still no pressure.then you must tackle the sucktion and then the delivery valves. I mentioned many causes, but usualy it is the spill valve. The electric motor will be turning, but the pistons stay in the same position. Another cause but very rare, is that the swash plate that is pushing the pistons got loose. Schmolke Deitermann Industrielles Rechnungswesen Pdf Download here. If these are not closing, then water is being sucked while delivering. One also can examine the delivery valves. If the sucktion vaves do not close, also water keeps on circulating. Also there could be a fault in the sucktion valves. In this case change the spill valve with a new one. If when the trigger is pulled and the bottom part of the spill valve does not close, then water keeps on circulating and hence no pressure. When the trigger is released, the spill valve compresses to let water circulate from its bottom part. When the trigger is pulled, the spill valve is in normal position.

This is sometimes refered to as the Spill Valve.

92 Answers SOURCE: Dear dennis_partr, In general all pressure washers have a control valve.If this is gasoline-powered engine, do not turn machine upside down to drain oil or 10-W30 engine oil will drain into carburetor. Or manual is available in Italian and German with pages missing. Of course you saved the manual, right? So you're not in line at fixya wanting a manual for some product made 5 years ago in China by a company that doesn't post manuals. Pump oil fills about half-way up inside pump. SOURCE: Pump oil is 20 or 30 weight non-detergent motor oil.

Kew hobby 80 1 pressure washer