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Posted by tnom on May 14, 2007, 3:24 pm
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>On May 14, 4:38 am, t...@mucks.net wrote:
>> >How does the trigger feed back to the machine? I mean, I know it does,
>> >but I just don't see how. Does the pump need back pressure to go high?
>> There should be a relief valve. It may be stuck.
>> http://shoppingcart.msservicecompany.com/msservice_net/product_files/...
>Thanks for the parts link!
>Is the relief valve in the trigger mechanism?
No. It should be on the pump close to the outlet.
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Posted by Pop` on May 14, 2007, 11:29 am
dean wrote:
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> Hi all,
> I gave my smaller pressure washer to my neighbor (retired now, really
> cool guy btw), and I brought it over to him and tried to show him how
> it works. But I could get no high pressure. The model is a DeVilbiss
> WGV2021-1 2000psi, 2gpm with a B&S 6HP engine.
> Water flows through the wand at low pressure. When the engine is on,
> there is no different in pressure, its just tap pressure. The pump did
> not freeze over winter as I had it indoors. Last fall it was working
> fine.
> Changed the pump oil. No change. Oil was not low.
> Changed the wand from high to low and back several times, no change.
> Anything else I can try? Are the pumps simple to disassamble and put
> back together again? I can get a new pump for $110, but I couldn't
> charge him for it.
> Any tips welcomed. This is the model:
>
http://shoppingcart.msservicecompany.com/msservice_net/product_files/WGV2021/wgv2021.pdf
show/hide quoted text
> Dean
Does the low pressure stream look right? Seem right? Operate as you
remember it?
It's possible the wand nozzle isn't working. On low, there is lots of room
for t he ater to come out, results in low pressure. On high, all the water
comes out the tiny opening in the end at the pencil spray setting. That
will be high pressure.
If you're not getting the rated input flow needed, you'll never get the
output pressure at full high. The most water moves in low. Less water
moves in high. And it'll burn out the pump.
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Posted by dean on May 14, 2007, 2:53 pm
show/hide quoted text
> dean wrote:
> > Hi all,
> > I gave my smaller pressure washer to my neighbor (retired now, really
> > cool guy btw), and I brought it over to him and tried to show him how
> > it works. But I could get no high pressure. The model is a DeVilbiss
> > WGV2021-1 2000psi, 2gpm with a B&S 6HP engine.
> > Water flows through the wand at low pressure. When the engine is on,
> > there is no different in pressure, its just tap pressure. The pump did
> > not freeze over winter as I had it indoors. Last fall it was working
> > fine.
> > Changed the pump oil. No change. Oil was not low.
> > Changed the wand from high to low and back several times, no change.
> > Anything else I can try? Are the pumps simple to disassamble and put
> > back together again? I can get a new pump for $110, but I couldn't
> > charge him for it.
> > Any tips welcomed. This is the model:
> >http://shoppingcart.msservicecompany.com/msservice_net/product_files/...
> > Dean
> Does the low pressure stream look right? Seem right? Operate as you
> remember it?
> It's possible the wand nozzle isn't working. On low, there is lots of room
> for t he ater to come out, results in low pressure. On high, all the water
> comes out the tiny opening in the end at the pencil spray setting. That
> will be high pressure.
> If you're not getting the rated input flow needed, you'll never get the
> output pressure at full high. The most water moves in low. Less water
> moves in high. And it'll burn out the pump.- Hide quoted text -
> - Show quoted text -
Pressing the trigger makes the jet come out of the thin nozzle, just
like it should do at high pressure, except it is not at high pressure.
The jet is maybe 2-3mm thick. On low-pressure mode, the jet is more of
a thicker, hose-pipe stream. From this point, it looks like the
trigger is working ok.
With the engine running or off, there's no difference in the flow
rate. Seems like the pump just ain't running.
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Posted by Shecki on May 14, 2007, 3:10 pm
show/hide quoted text
> > dean wrote:
> > > Hi all,
> > > I gave my smaller pressure washer to my neighbor (retired now, really
> > > cool guy btw), and I brought it over to him and tried to show him how
> > > it works. But I could get no high pressure. The model is a DeVilbiss
> > > WGV2021-1 2000psi, 2gpm with a B&S 6HP engine.
> > > Water flows through the wand at low pressure. When the engine is on,
> > > there is no different in pressure, its just tap pressure. The pump did
> > > not freeze over winter as I had it indoors. Last fall it was working
> > > fine.
> > > Changed the pump oil. No change. Oil was not low.
> > > Changed the wand from high to low and back several times, no change.
> > > Anything else I can try? Are the pumps simple to disassamble and put
> > > back together again? I can get a new pump for $110, but I couldn't
> > > charge him for it.
> > > Any tips welcomed. This is the model:
> > >http://shoppingcart.msservicecompany.com/msservice_net/product_files/...
> > > Dean
> > Does the low pressure stream look right? Seem right? Operate as you
> > remember it?
> > It's possible the wand nozzle isn't working. On low, there is lots of room
> > for t he ater to come out, results in low pressure. On high, all the water
> > comes out the tiny opening in the end at the pencil spray setting. That
> > will be high pressure.
> > If you're not getting the rated input flow needed, you'll never get the
> > output pressure at full high. The most water moves in low. Less water
> > moves in high. And it'll burn out the pump.- Hide quoted text -
> > - Show quoted text -
> Pressing the trigger makes the jet come out of the thin nozzle, just
> like it should do at high pressure, except it is not at high pressure.
> The jet is maybe 2-3mm thick. On low-pressure mode, the jet is more of
> a thicker, hose-pipe stream. From this point, it looks like the
> trigger is working ok.
> With the engine running or off, there's no difference in the flow
> rate. Seems like the pump just ain't running.- Hide quoted text -
> - Show quoted text -
sounds like an inadequate water supply. Make sure no hose T's are in
use, they are too restrictive.
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Posted by Oren on May 14, 2007, 3:17 pm
show/hide quoted text
>Water flows through the wand at low pressure. When the engine is on,
>there is no different in pressure, its just tap pressure. The pump did
>not freeze over winter as I had it indoors. Last fall it was working
I experienced this with my PW, I changed out the tip of the wand and
it worked fine.
We have really hard water, so my guess was calcium deposits in the
tip.
Oren
"The voices in my head may not be real, but they have some good ideas!"
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>> >How does the trigger feed back to the machine? I mean, I know it does,
>> >but I just don't see how. Does the pump need back pressure to go high?
>> There should be a relief valve. It may be stuck.
>> http://shoppingcart.msservicecompany.com/msservice_net/product_files/...
>Thanks for the parts link!
>Is the relief valve in the trigger mechanism?