Kew Pressure Washer problem ... update
Rick Hughes
great to date ..that had started surging.
No shortage of incoming mains (pressure or flow rate) even tried different
hoses & fittings to be 100% sure of that.
OK - as hose was crumbling away, .... bought a new hose, incl hose fitting
.... so can now discount the hose, lance & nozzle from being the issue.
Loads of water through lance if trigger operated (motor off)
When motor is on ... when lance operated it is surging ... aprox 2 sec full
pressure 1 sec low pressure.
Now previously it was mentioned that when I release trigger .. pump still
runs, and it uses a bypass valve to release the pressure .. and this could
be at fault.
Anybody know what this would look like, and is this something worth
stripping & perhaps cleaning.
Last option I suppose would be if there is somewhere that services KEW.
Like many British Manufacturing companies - they are no more.
The Medway Handyman
> I previously posted that I have a KEW Hobby pressure washer ...... been
> great to date ..that had started surging.
>
> No shortage of incoming mains (pressure or flow rate) even tried
> different hoses & fittings to be 100% sure of that.
>
>
> OK - as hose was crumbling away, .... bought a new hose, incl hose
> fitting .... so can now discount the hose, lance & nozzle from being the
> issue.
>
> Loads of water through lance if trigger operated (motor off)
> When motor is on ... when lance operated it is surging ... aprox 2 sec
> full pressure 1 sec low pressure.
>
> Now previously it was mentioned that when I release trigger .. pump
> still runs, and it uses a bypass valve to release the pressure .. and
> this could be at fault.
Very likely it is. The valve is opening too soon by the sound of it.
>
> Anybody know what this would look like, and is this something worth
> stripping & perhaps cleaning.
On an old KEW hobby it was probably adjustable - which KEW hobby do you
have - is there a model number?
>
>
> Last option I suppose would be if there is somewhere that services KEW.
> Like many British Manufacturing companies - they are no more.
KEW were Danish :-(
Started by a Knud Ernst Westergard who worked for Gerni in Randers,
Denmark, now defunct, but once part of the Nilfisk group.
Bought by an investment group - renamed Alto, then bought by Nilfisk -
they now trade as Nilfisk-Alto.
Dozens of places will repair them. Worth hanging on to, it was the last
of the quality hobby machines.
--
Dave - The Medway Handyman www.medwayhandyman.co.uk
T i m
<davi...@blueyonder.co.uk> wrote:
>Dozens of places will repair them. Worth hanging on to, it was the last
>of the quality hobby machines.
I made the 'mistake' of lending mine (Kew Hobby, the shape and weight
of an arc welder) to a pretty good friend but with the strict reminder
that 'I don't normally lend stuff out to anyone' and to 'make sure you
look after it'.
He took a long time returning it and eventually I found out why. He
had be using it to clean the loose stuff off his house after we had
replaced all his windows with new uPVC jobbies and because it was a
nice day and his kids were outside he was mucking about spraying them
with it. In an effort to run away, one tripped over the mains lead and
ripped the cable clamp and part of the case out.
Although quite old even at that point it (had) looked like new (it was
'mine') and of course parts were either difficult to get or very
expensive. Luckily it still worked as such but ...
How does it go .. 'Neither a borrower nor a lender be.'
As my Dad used to say re this sort of thing ... 'You have nothing to
gain and everything to lose' and generally he seems to have been
right. [1]
Cheers, T i m
[1] The only rider with that is if I do lend it to you and you break
it you buy it ... or buy me a same > better replacement one ..'. With
some people that goes unsaid but others ... ;-(
Rick Hughes
"The Medway Handyman" <davi...@blueyonder.co.uk> wrote in message
news:PgMPp.422$Ah6...@newsfe26.ams2...
> On 02/07/2011 21:03, Rick Hughes wrote:
>> I previously posted that I have a KEW Hobby pressure washer ...... been
>
> On an old KEW hobby it was probably adjustable - which KEW hobby do you
> have - is there a model number?
Yes .. Hobby 88
> KEW were Danish :-(
I passed the KEW factory once at Penrith, assumed they were British.
> Dozens of places will repair them. Worth hanging on to, it was the last
> of the quality hobby machines.
yep .. that is why I want to fix it, seems so much better built than the
plasticky Karchers
The Medway Handyman
>
> "The Medway Handyman" <davi...@blueyonder.co.uk> wrote in message
> news:PgMPp.422$Ah6...@newsfe26.ams2...
>> On 02/07/2011 21:03, Rick Hughes wrote:
>>> I previously posted that I have a KEW Hobby pressure washer ...... been
> .
>>
>> On an old KEW hobby it was probably adjustable - which KEW hobby do
>> you have - is there a model number?
>
>
>
> Yes .. Hobby 88
Can't find an online manual for that, but the unloader/by pass valve
will be built into the pump head & have a screw to adjust it.
Do you have a photo of the pump head you could post? I could prolly
spot the unloader screw.
>
>
>
>> KEW were Danish :-(
>
> I passed the KEW factory once at Penrith, assumed they were British.
>
>
Thats where Nilfisk Alto are now, same building.
>
>> Dozens of places will repair them. Worth hanging on to, it was the
>> last of the quality hobby machines.
>
>
> yep .. that is why I want to fix it, seems so much better built than the
> plasticky Karchers
Absolutely.
Rick Hughes
> On 03/07/2011 22:26, Rick Hughes wrote:
>
> Can't find an online manual for that, but the unloader/by pass valve will
> be built into the pump head & have a screw to adjust it.
>
> Do you have a photo of the pump head you could post? I could prolly spot
> the unloader screw.
I'll strip it and take pic tonight
Rick Hughes
> Do you have a photo of the pump head you could post? I could prolly spot
> the unloader screw.
Dave .. with the best from the David Bailey school of snapping ..
http://i771.photobucket.com/albums/xx351/Tafflad/Pic1.jpg
http://i771.photobucket.com/albums/xx351/Tafflad/pic2.jpg
The Medway Handyman
I don't know for sure, but I reckon its in the brass head thats held
down by 4 hex head bolts. It could well be under the pressure gauge, so
look their first.
What you are looking for is a screw that compresses a spring. It needs
tightening.
What should happen is; when the gun is shut the pressure rises, forcing
a valve to open against the spring and the water returns to the inlet.
So if the working pressure of the machine is 100 bar, the spring will be
under enough tension to hold the valve closed at 100 bar, but will allow
it to open at 105 bar.
Whats happening to your machine is; the spring is broken or out of
kilter it might be allowing the valve to open at 80 bar. So pressure
rises to 80, valve opens, pressure drops to 0, valve closes, pressure
rises to 80 etc etc.
HTH
Osprey
wrote:
> On 04/07/2011 19:34, Rick Hughes wrote:
>
>
>
>
>
>
>
> >news:E87Qp.29222$m22....@newsfe05.ams2...
>
> >> Do you have a photo of the pump head you could post? I could prolly
> >> spot the unloader screw.
>
> > Dave .. with the best from the David Bailey school of snapping ..
>
> >http://i771.photobucket.com/albums/xx351/Tafflad/Pic1.jpg
>
> >http://i771.photobucket.com/albums/xx351/Tafflad/pic2.jpg
>
> >http://i771.photobucket.com/albums/xx351/Tafflad/pic3.jpg
>
> >http://i771.photobucket.com/albums/xx351/Tafflad/pic4.jpg
>
> I don't know for sure, but I reckon its in the brass head thats held
> look their first.
>
> What you are looking for is a screw that compresses a spring. It needs
> tightening.
>
> a valve to open against the spring and the water returns to the inlet.
> under enough tension to hold the valve closed at 100 bar, but will allow
> it to open at 105 bar.
>
> Whats happening to your machine is; the spring is broken or out of
> kilter it might be allowing the valve to open at 80 bar. Sopressure
> rises to 80, valve opens,pressuredrops to 0, valve closes,pressure
> rises to 80 etc etc.
>
> HTH
>
> --
>
> - Show quoted text -
OK .. take a look on weekend ... thanks
If anyone else is familiar with Kew feel free to chip in
David
>
> > - Show quoted text -
>
> OK .. take a look on weekend ... thanks
>
> If anyone else is familiar with Kew feel free to chip in
These guys: http://stores.ebay.co.uk/qwashers ....... may be able to
get you a part.
Rick Hughes
"David" <dawoo...@gmail.com> wrote in message
news:cf5100a2-1c14-4ee3-890a-
>
> > I don't know for sure, but I reckon its in the brass head thats held
> > down by 4 hex head bolts. It could well be under thepressuregauge, so
> > look their first.
>
Dave (or others) ... OK .. to me it looks like it would vent out water via
the plastic tube marked 'X' in the pic 1:
http://i771.photobucket.com/albums/xx351/Tafflad/pic1-1.jpg
Removed the brass casting ... there seems to be some form of screw in
plastic pieces (strainers?) or of which does not look good ... Marked 'P'
in pic 2
http://i771.photobucket.com/albums/xx351/Tafflad/pic2-1.jpg
O rings were actually crunched - so had never been installed correctly.
Does this aluminium casting look OK .. the hole to the right of where I
marked the 'P' looks corroded.
The Brass casting has a large hex nut
http://i771.photobucket.com/albums/xx351/Tafflad/pic3-1.jpg
... and inside of which is a slot headed screw
http://i771.photobucket.com/albums/xx351/Tafflad/pic4-1.jpg
Do either of these look familiar to you as 'unloader valve.
I found the comment below on line ........
A pressure washer unloader valve prevents the pressure from building to
the breaking point when you aren't spraying water. A "diversion loop" is
created to cycle the water back to the inlet valve and inlet part of the
water pump. Unfortunately, the unloader valve is often a cause of trouble.
Some power washer users report problems such as the pressure washer motor
dying after spraying is done, minimal pressure, and sometimes even leaking
sprayers. There are a variety of fixes to problems such as these, the
simplest being the replacement of the unloader valve. If you need to do this
kind of pressure washer repair, it's absolutely essential to replace the
power washer valve with one that has equal or better gallons per minute
(GPM) and PSI ratings. Failure to do this can result in additional pressure
washer problems, including a safety hazard connected with the pressure of
the unit overwhelming the unloader valve, compromising or even destroying
it.
The Medway Handyman
>
> "David" <dawoo...@gmail.com> wrote in message
> news:cf5100a2-1c14-4ee3-890a-
>>
>> > I don't know for sure, but I reckon its in the brass head thats held
>> > down by 4 hex head bolts. It could well be under thepressuregauge, so
>> > look their first.
>>
>
> Dave (or others) ... OK .. to me it looks like it would vent out water
> via the plastic tube marked 'X' in the pic 1:
> http://i771.photobucket.com/albums/xx351/Tafflad/pic1-1.jpg
That machine has a water jacket around the motor to keep it cool. I
suspect that tube is the inlet to the pump from the jacket. Thats where
any 'unloaded' water would return to.
>
> Removed the brass casting ... there seems to be some form of screw in
> plastic pieces (strainers?) or of which does not look good ... Marked
> 'P' in pic 2
> http://i771.photobucket.com/albums/xx351/Tafflad/pic2-1.jpg
They are the inlet or outlet valves.
> O rings were actually crunched - so had never been installed correctly.
> Does this aluminium casting look OK .. the hole to the right of where I
> marked the 'P' looks corroded.
Doesn't look too bad, should last a while.
>
> The Brass casting has a large hex nut
> http://i771.photobucket.com/albums/xx351/Tafflad/pic3-1.jpg
>
> ... and inside of which is a slot headed screw
> http://i771.photobucket.com/albums/xx351/Tafflad/pic4-1.jpg
> Do either of these look familiar to you as 'unloader valve.
That looks exactly like the unloader valve adjuster.
Try turning the screw clockwise & see if it helps. Half a turn at a
time, don't go mad.
If no good, strip it out & see if the spring is broken.
>
>
>
> I found the comment below on line ........
>
> A pressure washer unloader valve prevents the pressure from building to
> the breaking point when you aren't spraying water. A "diversion loop" is
> created to cycle the water back to the inlet valve and inlet part of the
> water pump. Unfortunately, the unloader valve is often a cause of
> trouble. Some power washer users report problems such as the pressure
> washer motor dying after spraying is done, minimal pressure, and
> sometimes even leaking sprayers. There are a variety of fixes to
> problems such as these, the simplest being the replacement of the
> unloader valve. If you need to do this kind of pressure washer repair,
> it's absolutely essential to replace the power washer valve with one
> that has equal or better gallons per minute (GPM) and PSI ratings.
> Failure to do this can result in additional pressure washer problems,
> including a safety hazard connected with the pressure of the unit
> overwhelming the unloader valve, compromising or even destroying it.
>
That has to be American. Power washers are very different in the USA &
primitive compared to the European ones - mainly due to the Micky Mouse
US electrical system.
That refers to a separate bolt on unloader. Our machines have them
built in to the pump head.
Rick Hughes
>> Removed the brass casting ... there seems to be some form of screw in
>> plastic pieces (strainers?) or of which does not look good ... Marked
>> 'P' in pic 2
>> http://i771.photobucket.com/albums/xx351/Tafflad/pic2-1.jpg
>
> They are the inlet or outlet valves.
>
The plastic screw in 'things' ... look like some form of strainer, do you
know if these are available as spares ?
The Medway Handyman
They would be if the machine wasn't so old. Maybe they still are. Try
> http://www.nilfisk-alto.co.uk/
Rick Hughes
Tried them they pointed me to PressureClean UK ... who say ... no parts
available for Hobby 88
So everyone seems to suggest its a quality machine .... but seem to strike
out on parts.
Anybody any other suggestions ?
The Medway Handyman
>
> "The Medway Handyman" <davi...@blueyonder.co.uk> wrote in message
> news:I70Tp.2489$fl....@newsfe23.ams2...
>> On 12/07/2011 09:13, Rick Hughes wrote:
>>>
>>> "The Medway Handyman" <davi...@blueyonder.co.uk> wrote in message
>>> news:71TSp.28137$NX1....@newsfe18.ams2...
>>>
>>>>> Removed the brass casting ... there seems to be some form of screw in
>>>>> plastic pieces (strainers?) or of which does not look good ... Marked
>>>>> 'P' in pic 2
>>>>> http://i771.photobucket.com/albums/xx351/Tafflad/pic2-1.jpg
>>>>
>>>> They are the inlet or outlet valves.
>>>>
>>>
>>>
>>>
>>> The plastic screw in 'things' ... look like some form of strainer, do
>>> you know if these are available as spares ?
>>
>> They would be if the machine wasn't so old. Maybe they still are. Try
>>> http://www.nilfisk-alto.co.uk/
>>
>
>
> Tried them they pointed me to PressureClean UK ... who say ... no parts
> available for Hobby 88
>
> So everyone seems to suggest its a quality machine .... but seem to
> strike out on parts.
>
>
> Anybody any other suggestions ?
As I said, its an oldie but a goodie.
I suspect either adjustment or a new spring is required. You might be
able to pick up a suitable spring from
> http://www.springmasters.com/stocksprings.html
Rick Hughes
"Rick Hughes" <rick_hughes@remove_me.btconnect.com> wrote in message
news:_sKdnY3sWqs_5JLT...@bt.com...
>I previously posted that I have a KEW Hobby pressure washer ...... been
>great to date ..that had started surging.
>
> No shortage of incoming mains (pressure or flow rate) even tried
> different hoses & fittings to be 100% sure of that.
>
Thought I'd give an update in case it helps others.
The company that bought out KEW ... Nilfisk-Alko carry no spares at all for
Kew.
Apart from hoses & lances, nobody seems to stock parts for Kew ....a pity as
it seems a substantially built machine ... large stainless steel
water-cooled motor, multi-stage pump, rugged brass castings.
In my case the 'surging' was assumed to be the unloader valve, tripping at
too early a pressure.
The screw head slot visible in picture ... did 'not' adjust the spring
pressure, as it turns freely ............ you would have to insert a socket
at other end of shaft to hold the nyloc nut while you turned the screwdriver
......... I didn't find that out until I stripped the valve.
The very large brass nut in the picture was undone ...and it took a huge
amount of torque to get it out (and a big Stilsons) this then unscrews the
unloader valve.
Once out I checked spring .. all seemed OK, I physically rotated the
'poppet' valve on it's seat, it sound a bit crunchy initially then OK ...
could se nothing wrong ...... so reassembled .... and it is now working
fine.
SWMB is now out using patio scrubber attachment and doing all the patio &
paths (she enjoys it)
So it was the valve (thnx to those who explained how it worked) ... assume
something was stuck or there was crud somewhere.
alan darn
Nice to meet you all and I look forward to your answer. Thanks
Z Fell
Chrs. Anybody?
Z Fell
Assembled...still pulses.
Stretched spring to increase tension.....still pulsing.
I may stretch further - weather permitting.
Lonely in here.
Dean Heighington
Ok, cos ur lonely :)
Don't have one, never used one.
But have tinkered with my pressure washer... Can you not try and lubricate
the part or does it need replacement. If it's metal, try leaving it to soak
in petrol over night. Plastic? Then try silicone grease/ spray... They sell
it for clipping guttering together and it's useful stuff... works
wonderfully on curtain tracks ( top tip there)
Good luck.
Deano
--
What else are opposable thumbs for? Get to me at
masterfix{at}btinternet{dot}com
Z Fell
The valve is not sticking, if anything, opening too easily. I am no up on the ins & out's (pun intended) of it but others on here seemed to have a grasp of what should or not be happening.
Thanks though as my curtain rails are now supersonic.
A Z
I will probably shim tomorrow to reduce spring space and add pressure even tyhough poster warned it could cause valve damage-though I can't follow why.
al darn
a darn
noelh...@hotmail.com
have the same unit for years and have the same problems periodically. Just replace the 4 o ring and give it a good blow out with compressor. The reseal using good grease and high presto works every time. Done this about 4 times in the last 2 years . Good Luck Noel
englis...@tiscali.co.uk
> I previously posted that I have a KEW Hobby pressure washer ...... been
> great to date ..that had started surging.
>
> No shortage of incoming mains (pressure or flow rate) even tried different
> hoses & fittings to be 100% sure of that.
>
>
> .... so can now discount the hose, lance & nozzle from being the issue.
>
> Loads of water through lance if trigger operated (motor off)
> When motor is on ... when lance operated it is surging ... aprox 2 sec full
> pressure 1 sec low pressure.
>
> Now previously it was mentioned that when I release trigger .. pump still
> runs, and it uses a bypass valve to release the pressure .. and this could
> be at fault.
>
> stripping & perhaps cleaning.
>
>
> Like many British Manufacturing companies - they are no more.
> I previously posted that I have a KEW Hobby pressure washer ...... been
> great to date ..that had started surging.
>
> No shortage of incoming mains (pressure or flow rate) even tried different
> hoses & fittings to be 100% sure of that.
>
>
> .... so can now discount the hose, lance & nozzle from being the issue.
>
> Loads of water through lance if trigger operated (motor off)
> When motor is on ... when lance operated it is surging ... aprox 2 sec full
> pressure 1 sec low pressure.
>
> Now previously it was mentioned that when I release trigger .. pump still
> runs, and it uses a bypass valve to release the pressure .. and this could
> be at fault.
>
> stripping & perhaps cleaning.
>
>
> Like many British Manufacturing companies - they are no more.
I have had the same type of problem that you are having down to a tee, For me I found the problem in the nozzle at the very end of the lance, I stripped it down and in the center there is a tiny hole that can be partially blocked, I was Gob smacked because I thought the high pressure would have blown any small blockage out but I was wrong in thinking that. lol I used what the call a Primus Pricker to clean out the hole also making sure the two little flat jet control plates were not all bent to hell, Its all beyond me how that nozzle works but it did do the trick, For me I get that problem cropping up about every couple of years but at least now I know what to do about it, I sure do this helps you in your quest to solve your problem.
Peter :-)
The Other John
>On Saturday, 2 July 2011 21:03:47 UTC+1, Rick Hughes wrote:
>> I sure do this helps you in your quest to
>> solve your problem.
>> Peter
Why don't people who use Google Groups read the first line of posts
where it shows the date of posting? I've just checked it's clearly
visible. </rant>
--
TOJ.
F Murtz
Brian Gaff
orbought something else. anyone who puts up with a problem like that for
several years must not really need to own a pressure washer!
Brian
--
From the Sofa of Brian Gaff Reply address is active
"F Murtz" <hag...@hotmail.com> wrote in message
news:53a0bf62$0$61515$c3e8da3$f017...@news.astraweb.com...
Rick Hughes
must be something else ....
I stripped out pressure head, cleaned all ... and it's better ,, surging
only happens occasionally now.
--
UK SelfBuild: http://uk.groups.yahoo.com/group/UK_Selfbuild/
Rick Hughes
> I was just going to say, surely by now the person has either fixed it
> orbought something else. anyone who puts up with a problem like that for
> several years must not really need to own a pressure washer!
>
> Brian
>
.... last a few minutes then clears .... so strip down seems to have helped.
Curtis
I have a 30CA Compact Pressure Washer with probably less than 20hrs on it.
Was working fine then began shutting off after 15 seconds or so. Can
cycle it back on with the on/off switch but condition persists. Inlet
screen is clear, pressure shut off switch is OK and motor rotates
smoothly. The run capacitor is getting hot along with the start relay
attached to it. The start relay cover is slightly warped from getting
hot. All connections seem to be clean and solid. Trying to narrow down a
bad contactor block, start relay or old capacitor. The unit was made in
98' or 99'.
--
David Lang
Curtis
> davidlang wrote:
>
> Thermal overload tripping?
Don't see any indication of one on any of the diagrams. The question at
hand is why the run capacitor and starter relay are heating up so quickly
after only running for such a short period of time. Motor fan spins
easily with only a small amount of resistance, no doubt from the shaft
seal and pump impeller. No corrosion on the motor at all. Lousy current
flow somewhere might heat things up? It ran fine with intermittent use
for about 30 minutes, full pressure, positive shut-off with release of the
trigger, etc. It sat for a while and then began the short bursts and shut
down.
--
David Evans
>
> I previously posted that I have a KEW Hobby pressure washer ...... been
> great to date ..that had started surging.
> No shortage of incoming mains (pressure or flow rate) even tried
different
> hoses & fittings to be 100% sure of that.
> OK - as hose was crumbling away, .... bought a new hose, incl hose fitting
> .... so can now discount the hose, lance & nozzle from being the issue.
> Loads of water through lance if trigger operated (motor off)
> When motor is on ... when lance operated it is surging ... aprox 2 sec
full
> pressure 1 sec low pressure.
> Now previously it was mentioned that when I release trigger .. pump still
> runs, and it uses a bypass valve to release the pressure .. and this could
> be at fault.
> Anybody know what this would look like, and is this something worth
> stripping & perhaps cleaning.
> Last option I suppose would be if there is somewhere that services KEW.
> Like many British Manufacturing companies - they are no more.
about to dump it... then thought about recycling and reusing... so I found
this site and fixed it. All I did was to turn the dump valve screw 1/4
turn clockwise and it goes well! I just need a new pressure gauge or find
out if they are repairable?
--
Andy2e0bns
Lookingto find out what oil kew hobby pressure washers use
--
posted from
http://www.homeownershub.com/uk-diy/kew-pressure-washer-problem-update-715162-.htm
using HomeOwnersHub's Web, Mobile and Social Media Interface to
uk.d-i-y and other home improvement groups
Johnny Tan
Hi,
I had a similar problem with my KEW HOBBY 80. In my case, I solved this
problem by servicing the nozzle of my lance. I found out that the nozzle had
two sets of jets..one for the regular pressure bypassing the pump and the
other at high pressure. I carefully cleaned out all the holes in the nozzle
and recovered the high pressure jet,, YMMV Hope this helps.
Incidentally, do you know where I can still find a fan for the KEW HOBBY 80?
--
for full context, visit https://www.homeownershub.com/uk-diy/kew-pressure-washer-problem-update-715162-.htm
Gareth
Hi Rick, great photos, I have a similar problem with my Kew pressure washer.
I cant get the covers off despite removing the 2 screws at the top and having
the blue cover loose it appears to be catching on something inside?
beng...@gmail.com
> I previously posted that I have a KEW Hobby pressure washer ...... been
> great to date ..that had started surging.
>
> No shortage of incoming mains (pressure or flow rate) even tried different
> hoses & fittings to be 100% sure of that.
>
>
> OK - as hose was crumbling away, .... bought a new hose, incl hose fitting
> .... so can now discount the hose, lance & nozzle from being the issue.
>
> Loads of water through lance if trigger operated (motor off)
> When motor is on ... when lance operated it is surging ... aprox 2 sec full
> pressure 1 sec low pressure.
>
> Now previously it was mentioned that when I release trigger .. pump still
> runs, and it uses a bypass valve to release the pressure .. and this could
> be at fault.
>
> Anybody know what this would look like, and is this something worth
> stripping & perhaps cleaning.
>
>
> Last option I suppose would be if there is somewhere that services KEW.
> Like many British Manufacturing companies - they are no more.
Is the motor overheated and a fuse disconnect it? No oil in the pumphouse?
TMH
> Den lördag 2 juli 2011 kl. 22:03:47 UTC+2 skrev Rick Hughes:
>> I previously posted that I have a KEW Hobby pressure washer ...... been
>> great to date ..that had started surging.
>>
>> No shortage of incoming mains (pressure or flow rate) even tried different
>> hoses & fittings to be 100% sure of that.
>>
>>
>> OK - as hose was crumbling away, .... bought a new hose, incl hose fitting
>> .... so can now discount the hose, lance & nozzle from being the issue.
>>
>> Loads of water through lance if trigger operated (motor off)
>> When motor is on ... when lance operated it is surging ... aprox 2 sec full
>> pressure 1 sec low pressure.
>>
>> Now previously it was mentioned that when I release trigger .. pump still
>> runs, and it uses a bypass valve to release the pressure .. and this could
>> be at fault.
>>
>> Anybody know what this would look like, and is this something worth
>> stripping & perhaps cleaning.
>>
>>
>> Last option I suppose would be if there is somewhere that services KEW.
>> Like many British Manufacturing companies - they are no more.
Nilfisk-Alto. Located in Penrith IIRC.
> I have a KewHobby 100 who works for around 4minutes then it sounds like the motor working harder and it stops. I switch it off and after a few minutes I can work for a minute or two before it repetes over and over again!
>
> Is the motor overheated and a fuse disconnect it? No oil in the pumphouse?
>
overheat.
--
Dave
The Medway Handyman
Andy Burns
> Thy probably have a TOL on the motor.
Tim+
Tim
--
Please don't feed the trolls
TMH
Richard MartinThanks
Can you help with a Kew 30ca compact 1 pressure washer and how the pressure
switch works
Mucky duck
👍
Brian Gaff
if you quote what you have been told in the message it would be better and
more compliant with the use of the Usenet group. I fancy.
Brian
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"Mucky duck" <caedfaa9ed1216d60ef...@example.com> wrote in
message news:K6jGE.292217$XC1.2...@fx21.am4...
Williamj
I removed the unloading valve and checked the movement of the piston against the spring, and found it quite free. I dismantled the unit and found the spring in good condition. I doubt if the spring tension can be adjusted with the screw and lock not as the lock nut is up to the end of the screw collar.
I had previously used a wire to go into the nozzle as I thought the nozzle was partially blocked, and that worked for a few occasions.
Using a wire to go into the nozzle is not recommended.
I purchased a new lance on Amazon for £19.95 as someone has found, though it was for an Alto it worked on the Hobby.
Attached the new lance and Hey Presto full pressure 130psi indicating.
Success!
--
For full context, visit https://www.homeownershub.com/uk-diy/kew-pressure-washer-problem-update-715162-.htm
stuart hotchkiss
> I previously posted that I have a KEW Hobby pressure washer ...... been
> great to date ..that had started surging.
> No shortage of incoming mains (pressure or flow rate) even tried different
> hoses & fittings to be 100% sure of that.
>
> OK - as hose was crumbling away, .... bought a new hose, incl hose fitting
> .... so can now discount the hose, lance & nozzle from being the issue.
> Loads of water through lance if trigger operated (motor off)
> When motor is on ... when lance operated it is surging ... aprox 2 sec full
> pressure 1 sec low pressure.
> Now previously it was mentioned that when I release trigger .. pump still
> runs, and it uses a bypass valve to release the pressure .. and this could
> be at fault.
> Anybody know what this would look like, and is this something worth
> stripping & perhaps cleaning.
>
> Last option I suppose would be if there is somewhere that services KEW.
> Like many British Manufacturing companies - they are no more.
Frankly it is better to bin it
The Other John
> It is not British. The problem is either the inlet filter or, more
> likely,
> the seals inside the pump which are easy to change if you can find the
> seals. Try Aliexpress for parts but no-one I know sells parts in Europe.
> Frankly it is better to bin it
--
TOJ.
Tim+
us.
Fredxx
Brian Gaff
I'd be surprised if it was still working after all that time.
Brian
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