Question about Garden
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Posted on Jan 02, 2017
Well, first the easy bit... the pulsation is caused by the leak, because the machine can't hold pressure when the trigger is released. The difficult bit is: what to do about it? Unfortunately, there are several different places where the leak can occur and, even with the cover off, it's usually impossible to be sure exactly where the water's coming from. In the repair shop where I work, we almost always replace every part that might be causing trouble without even trying to identify the exact source. To do otherwise will rack the labour costs up so high as to render the job uneconomic. We reckon that if you can't complete the job in 45 minutes it's not worth it. Sad really, but such are the realities of our economics.
Anyway, unless you are a really competent handy-person, this is probably a job you won't want to tackle for yourself. So your choice is either to live with it (and do whatever you can to limit the pulsating time - keep it working or switch it off immediately) or take it to a repair shop. If you are in the UK, Karcher head office can direct you to a repairer, and I guess the same applies in many other countries too.
If you do want to have a go at it yourself, post another message here and I'll give you as much guidance as I can (but there will be a limit to the amount of detail I can provide, as I can't get in to writing a complete service manual!).
Posted on Jun 24, 2009
you have a restriction in the nozzle end of the lance. clean with paper clip.
if not you have some dirt in the pump head valves which need cleaning
Posted on Jul 04, 2009
Check the wire feed does not become obstructed when the trigger is pulsed. The wire can become tangled on the roll if it is able to get loose. The reel tension must be adjusted as the weight of the roll decreases.
Posted on Nov 24, 2009
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