Karcher K1900 Pressure Washer Pressure Switch Plug
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This replaces a plug that holds a brass plunger which actuates a micro switch inside a Karcher K1900 pressure washer.
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Model information
- Source
- Printables
- Category
- Mechanical Parts
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
My Karcher K1900 pressure washer has this plug piece that had cracked and broken apart. It holds a plunger that depresses a micro switch when at rest, and I believe opens the switch once a certain pressure is reached. I carefully measured and reproduced it in OnShape so I could print a replacement.
I've only printed in PLA so far and test fit (it is tight). I printed with 6 perimeters or something high enough that it has no sparse infill areas. I turned on supports because of the several overhangs. It holds back the hose-pressure water but I believe my washer has capacitor issues as well so I haven't been able to test at full pressure.
Uploaded in case it may help anyone else who is dealing with this broken part.
OnShape document link: https://cad.onshape.com/documents/53fd5fcbf88a2ede0c69fed3/