Dick, is there a way to step up 6vdc to 12vdc? I've
not been able to find ANY other 6v solenoids but have
found some 12V ones. I know if it was AC I could just
wind a transformer but with DC??
Kerry
--- KerryPinkerton <pinkertonk@xxxxxxxxx> wrote:
> Dick are you sure about the 300psi. The original
> cylinders and hoses don't look like much. Much less
> robust than brake lines. In fact, an early repair
> used compression fittings to splice a line in. It
> was
> holding fine and due to the condition of the line,
> had
> been in place for quite a few years?????
>
> Kerry
>
> --- Dick Benjamin <DickB@xxxxxxxxx> wrote:
> > I wouldn't worry too much about it, as there
> should
> > be no spark created
> > within the device (the only spark is at the switch
> > contacts). If the
> > solenoid should stick on for some reason, it could
> > get warm, but without
> > knowing the current draw, I couldn't guess at how
> > warm.
> >
> > The solenoids are not the usual failure point for
> > these cylinders, the usual
> > failure is leakage past the piston cup. I have
> > peeled the crimp open and
> > replaced the piston seals on these, for a cheap
> and
> > easy, if somewhat messy
> > looking repair. I have also converted all my
> cars
> > with hydraulic cylinders
> > to the use of Dexron/Mercon fluid, to avoid the
> > damage caused by brake fluid
> > leaking on painted or upholstered surfaces. One
> > must replace all the
> > system's rubber parts when making this changeover,
> > though, as the old rubber
> > parts will have swelled up somewhat from the
> alcohol
> > in the brake fluid.
> > When that is gone, they start leaking. Don't
> change
> > to Dot-5 fluid, by the
> > way, as that has no lubricity and will ruin the
> > hydraulic pump in short
> > order.
> >
> > The solenoid must be capable of resisting fluid
> > pressure of 300PSI, because
> > when the pump is running, there is pressure to all
> > cylinders; only those
> > with the solenoid energized must allow fluid to
> > flow. Then when the pump is
> > not running (for instance when the window is being
> > lowered), the solenoid
> > must present a low resistance to flow back to the
> > pump, so that the spring
> > can pull the window down.
> >
> > Dick Benjamin
> > ----- Original Message -----
> > From: KerryPinkerton <pinkertonk@xxxxxxxxx>
> > To: IML <mailing-list@xxxxxxxxxxxxxxxx>
> > Sent: Tuesday, June 25, 2002 5:54 AM
> > Subject: IML: Fire possibility from 6V solenoid??
> >
> >
> > > Ok, all you EE types, I have a serious question.
> > > Steve Charette found a 6V solenoid in the
> > > McMaster-Carr catalog. Thanks Steve, I missed
> it.
> > >
> > > http://www.mcmaster.com/
> > >
> > > Go to item # 4916K11
> > >
> > > This is a Pnuematic valve with Buna-N seals. It
> > is
> > > NOT designed for brake fluid. Here is the
> > question.
> > > If this thing were to leak, is there any danger
> of
> > > fire from the solenoid energizing? I'd hate to
> > burn
> > > the Crown down.... Is there a non flammable
> fluid
> > > that would subsitute?
> > >
> > > I'd THINK that if it will hold air, it will hold
> > > fluid. This thing is only 24 bucks and I can
> > build
> > > the cylinder for next to nothing so it could be
> a
> > good
> > > solution for all of us with these hydralic
> windows
> > > lifts.
> > >
> > > Your thoughts please.
> > >
> > > Kerry
> > >
> > >
> > >
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