ShurFlo 5.7

[freewill2008]

The pressure adjustment is the silver phillips head screw in the
center of the pump housing dome. Tighen for higher pressure, loosen
for lower pressure. Its a simple spring-over setup. The screw sets
preload on the spring. The pump is designed for a specific pressure
range so it would be good to use a pressure guage and not get too far
off the factory specification.

Bob Griesel '84 FC31 WLII WA

--- In WanderlodgeForum@yahoogroups.com, Terry Neal wrote:
>
> Hi Ryan,
>
> What they didn't tell is that they've had a some problems with
these
> pumps. In all capacities. I am on my 3rd 4.0 model in less than 6
> months. All of them start & then stop with no valve shut off.
They
> just quit. There is an adjustment in the pressure sensitive switch
but
> they won't tell me how to adjust it. They just say to send ot back
to
> them for a replacement.
>
> Best of luck with yours.
> Terry
>
> Terry Neal
> Bozeman, MT
> 82PT40 6V92TA
> 74FC34 6V53T
>
>
>
> Ryan Wright wrote:
>
> > Hi folks,
> >
> > I've got a problem with my relatively new ShurFlo 5.7 water pump.
> > ShurFlo doesn't know what to tell me, other than to send it back
to
> > them, but before I do I'd like to see if anyone here has
experienced
> > similar behavior.
> >
> > The pump runs for about 30 seconds, then cuts out for a couple of
> > seconds as if it's reached it's target pressure despite my faucet
> > being wide open. Then it runs for 5-10 seconds, cuts out, and
repeats
> > this behavior indefinitely. If I open more faucets, I can hear the
> > pump boost it's operating speed and it runs slightly longer
between
> > cutting out. After a few minutes of this on & off behavior, the
stops
> > become more abrupt and I can hear a relay inside the pump
flicking off
> > during each cut.
> >
> > Anyway, I'm assuming the pump is faulty and will be returning it
to
> > ShurFlo, but I did want to ask here first. I thought these pumps
were
> > supposed to adjust their speed in real time to deliver just the
amount
> > of water needed, not shut down entirely? My intention is to buy a
new
> > one right now and keep this one as a spare after ShurFlo replaces
it,
> > but I'm also concerned of the remote possibility I bought too much
> > pump for my coach's plumbing system and a new one won't behave any
> > better. What do you think?
> >
> > -Ryan
> > '86 PT-40 8V92
> >
> >
>