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[DennisCA]

I got the part out, based on measurements I took of the piston and part itself I believe it is a 32x42x7,3 U profile seal



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[DennisCA]

Taking it apart further. The pistons don't look good on the outside, they are plated, probably hard chrome. But it has started to flake off at the top....

[DennisCA]

Turns out the function is pretty simple, it's a normal piston, the hole is for the piston plunger and does not allow water through. The piston is very...

[DennisCA]

Yeah there's a thread inside them. I dunno how this is supposed to work exactly. I've rotated the shaft by hand and the pistons are what moves. Maybe...

[DennisCA]

I did find how the valve that returns the water to the stream works, it was actually shown in the previous photos. Orange colored part, hex shaped....

[DennisCA]

This one specs 18l/min and 120 bar, which comes to 4.7 gallons a minute and 1470 PSI. So nowhere near that monster. A normal pressure washer for cleaning...

[DennisCA]

I need a good high quality pressure washer, my last one broke and it was a crappy consumer grade unit. This one also works with hot water so I could fit...

[DennisCA]

Taking apart a pressure washer I bought for 40 euros, made in the 1970s sometime. 4kW three phase motor

Looks pretty simple in principle....