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Published on Mar 13, 2012
How to Strip down the karcher k620m pressure washer case and the pump to access the pressure switch. Remove the pressure switch spool valve and clean the port. Link to buy spares and more info (UK) : http://www.sparesgiant.com/cleaning-e...
Notice karcher have more than one K620m so check your barcode... although they do all share many common parts !