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Old 10-10-2017, 01:49 PM   #1
mdebeum
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Help servicing Nilfisk E145

Hi guys,

Some time ago my Nilfisk E145 started pulsating while turned on but not in use. Cleaned the filters and checked water pressure, used an open connector for the water supply and plugged it in without extension lead but the pulsating became worse.

Here a video of what I mean:
https://youtu.be/w_X1HV01Dcw

Got to taking the whole thing apart but can't seem to find anything really wrong, was thinking the seals myself but as I'm no expert they all 'look' fine to me.

Maybe someone else has an idea?

I've found the housing with the 'wobble plate' to be filled with water, is this normal?

I'm not sure which seals to replace. Do they all need replacing? Any recommendations on where to buy a full seal kit or would you just buy a new one?


Pics added of what it looks like inside the pump.


Tips and tricks greatly appreciated!

Mike

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Last edited by mdebeum; 10-10-2017 at 01:52 PM.
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Old 10-10-2017, 11:11 PM   #2
scooobydont
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I had a c110 do the same thing, all their gear comes with 3 year warranties, might be worth checking the age of it? They sent me a new one. I didn't pull mine to bits, just emailed them with the problem. Their customer service was excellent even though mine was a cheapie.

Last edited by scooobydont; 10-10-2017 at 11:16 PM.
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Old 11-10-2017, 07:44 AM   #3
LeeH
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When my old karcher was pulsing it was an internal leak.


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Old 11-10-2017, 09:37 AM   #4
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Haha no I normally don't start with pulling things to bits either, but have bought this from nilfisk outlet as a refurbished model. Only just found out that's got nothing to do with nilfisk and the warranty has expired anyway.

I've ordered some silicone grease, going to clean it and reseal it and see if that helps.

Come to think of it it might have seen one single day of light frost end of last winter. Even though I drain it according to the manual it might have just pushed out a seal or something and it'll settle in its proper position now.

Or something like that.. One can hope

Anyone know if this 10m steel flexible hose can be retrofitted to a C-range model if I can't fix this one?
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Old 11-10-2017, 10:42 AM   #5
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I's give Q washers a quick call.
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Old 11-10-2017, 01:08 PM   #6
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Brilliant, that looks like a good idea! Thanks suspal!

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Old 10-01-2018, 12:55 PM   #7
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Just an update on this thread, with help of North West Power Washers I've managed to fix the problem. Initially thought it was the none return valve, but kept pulsing after replacing that.

Today I've taken apart the whole gun and found the valve in the handle sticking slightly which caused the valve to stay open en lose pressure. Cleaned and regreased everything which seems to have solved the problem!

Thanks for all the help everyone!

Valve in the handle wasn't properly closing :
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Old 10-01-2018, 01:38 PM   #8
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Thanks for the update mine is doing similar though by the sounds of your post mine isn't as bad. I've ordered a seal kit online and waiting for it to arrive. The internals of my gun are plastic yours looks brass but I'll make sure I clean and regrease everything and hopefully itll sort it
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Old 16-01-2018, 11:23 PM   #9
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I hope you'll sort it! If not give the guys at North West Power Washers a call, they might be able to help.

Good luck!
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