Electrolevel II maximum pressure control

M

mark grady

New member
May 2, 1998
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I did a quick search on this list, and also looked at the manuals and
addendum for '78. Here's my question.

By what method is the maximum pressure to the air spring bellows controlled
by the EL2 system? I'm going to change to a Sully system, which uses less
air pressure.

The ride height sensors work great. I have cleaned and reconditioned the
EL2 compressors. I have done the house battery EL2 power mod. In all this,
I didn't see any high pressure control provision.

I have a twin needle suspension pressure gauge in the McNeil dash. But - If
someone else is driving and hits the raise buttons, I feel that some kind
of safeguard is needed to prevent hyper extending the bags. Is there a
provision in the stock EL2 pumps, or should I just get two NC high pressure
cutoff switches?

I don't want to add more parts if there is a simpler way. Thanks in
advance.

Mark Grady
Northern IN - '78 Kingsley
 
There is no pressure control on Electro level 2.
We have a kit that will give you pressure control and a safety pop off
valve should all controls fail.
Call me should you need one.

> I did a quick search on this list, and also looked at the manuals and
> addendum for '78. Here's my question.
>
> By what method is the maximum pressure to the air spring bellows controlled
> by the EL2 system? I'm going to change to a Sully system, which uses less
> air pressure.
>
> The ride height sensors work great. I have cleaned and reconditioned the
> EL2 compressors. I have done the house battery EL2 power mod. In all this,
> I didn't see any high pressure control provision.
>
> I have a twin needle suspension pressure gauge in the McNeil dash. But - If
> someone else is driving and hits the raise buttons, I feel that some kind
> of safeguard is needed to prevent hyper extending the bags. Is there a
> provision in the stock EL2 pumps, or should I just get two NC high pressure
> cutoff switches?
>
> I don't want to add more parts if there is a simpler way. Thanks in
> advance.
>
> Mark Grady
> Northern IN - '78 Kingsley
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Thanks Jim, will do.

Mark

> There is no pressure control on Electro level 2.
> We have a kit that will give you pressure control and a safety pop off
> valve should all controls fail.
> Call me should you need one.
>

>
> > I did a quick search on this list, and also looked at the manuals and
> > addendum for '78. Here's my question.
> >
> > By what method is the maximum pressure to the air spring bellows
> controlled
> > by the EL2 system? I'm going to change to a Sully system, which uses less
> > air pressure.
> >
> > The ride height sensors work great. I have cleaned and reconditioned the
> > EL2 compressors. I have done the house battery EL2 power mod. In all
> this,
> > I didn't see any high pressure control provision.
> >
> > I have a twin needle suspension pressure gauge in the McNeil dash. But -
> If
> > someone else is driving and hits the raise buttons, I feel that some kind
> > of safeguard is needed to prevent hyper extending the bags. Is there a
> > provision in the stock EL2 pumps, or should I just get two NC high
> pressure
> > cutoff switches?
> >
> > I don't want to add more parts if there is a simpler way. Thanks in
> > advance.
> >
> > Mark Grady
> > Northern IN - '78 Kingsley
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
>
>
>
> --
> Jim Kanomata
> Applied/GMC, Fremont,CA
> jimk
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Mark,
If you current height control and inflation system is functioning correctly
and you switch to the Sullybilt system there is no need to limit the
pressure output of the compressor. The system will work exactly as it does
with the oem bag setup. The air compressors will just not work as hard due
to lower air pressure required to obtain the same heights with the
Sullybilt system.

Sully
77 eleganza 2
Seattle

I did a quick search on this list, and also looked at the manuals and
addendum for '78. Here's my question.

By what method is the maximum pressure to the air spring bellows controlled
by the EL2 system? I'm going to change to a Sully system, which uses less
air pressure.

The ride height sensors work great. I have cleaned and reconditioned the
EL2 compressors. I have done the house battery EL2 power mod. In all this,
I didn't see any high pressure control provision.

I have a twin needle suspension pressure gauge in the McNeil dash. But - If
someone else is driving and hits the raise buttons, I feel that some kind
of safeguard is needed to prevent hyper extending the bags. Is there a
provision in the stock EL2 pumps, or should I just get two NC high pressure
cutoff switches?

I don't want to add more parts if there is a simpler way. Thanks in
advance.

Mark Grady
Northern IN - '78 Kingsley
_______________________________________________
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Unsubscribe or Change List Options:
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Todd -

Thanks for your reply. My question is a 'what if' -- that being if another
driver flips the switches to raise and leaves them inadvertently. On the
OEM system, the compressors reach a maximum PSI about the same time the OEM
bag does. As you state, the newer bags need less pressure.

So my question is if you unintentionally over inflate them, should there be
a safety precaution, such as a high limit switch or 100 PSI pop off valve?

> Mark,
> If you current height control and inflation system is functioning correctly
> and you switch to the Sullybilt system there is no need to limit the
> pressure output of the compressor. The system will work exactly as it does
> with the oem bag setup. The air compressors will just not work as hard due
> to lower air pressure required to obtain the same heights with the
> Sullybilt system.
>
> Sully
> 77 eleganza 2
> Seattle
>

>
> I did a quick search on this list, and also looked at the manuals and
> addendum for '78. Here's my question.
>
> By what method is the maximum pressure to the air spring bellows controlled
> by the EL2 system? I'm going to change to a Sully system, which uses less
> air pressure.
>
> The ride height sensors work great. I have cleaned and reconditioned the
> EL2 compressors. I have done the house battery EL2 power mod. In all this,
> I didn't see any high pressure control provision.
>
> I have a twin needle suspension pressure gauge in the McNeil dash. But - If
> someone else is driving and hits the raise buttons, I feel that some kind
> of safeguard is needed to prevent hyper extending the bags. Is there a
> provision in the stock EL2 pumps, or should I just get two NC high pressure
> cutoff switches?
>
> I don't want to add more parts if there is a simpler way. Thanks in
> advance.
>
> Mark Grady
> Northern IN - '78 Kingsley
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
My suggestion is to keep another driver out of Your seat !

Mike in NS

> Todd -
>
> Thanks for your reply. My question is a 'what if' -- that being if another
> driver flips the switches to raise and leaves them inadvertently. On the
> OEM system, the compressors reach a maximum PSI about the same time the OEM
> bag does. As you state, the newer bags need less pressure.
>
> So my question is if you unintentionally over inflate them, should there be
> a safety precaution, such as a high limit switch or 100 PSI pop off valve?
>

>
> > Mark,
> > If you current height control and inflation system is functioning
> correctly
> > and you switch to the Sullybilt system there is no need to limit the
> > pressure output of the compressor. The system will work exactly as it
> does
> > with the oem bag setup. The air compressors will just not work as hard
> due
> > to lower air pressure required to obtain the same heights with the
> > Sullybilt system.
> >
> > Sully
> > 77 eleganza 2
> > Seattle
> >

> >
> > I did a quick search on this list, and also looked at the manuals and
> > addendum for '78. Here's my question.
> >
> > By what method is the maximum pressure to the air spring bellows
> controlled
> > by the EL2 system? I'm going to change to a Sully system, which uses less
> > air pressure.
> >
> > The ride height sensors work great. I have cleaned and reconditioned the
> > EL2 compressors. I have done the house battery EL2 power mod. In all
> this,
> > I didn't see any high pressure control provision.
> >
> > I have a twin needle suspension pressure gauge in the McNeil dash. But -
> If
> > someone else is driving and hits the raise buttons, I feel that some kind
> > of safeguard is needed to prevent hyper extending the bags. Is there a
> > provision in the stock EL2 pumps, or should I just get two NC high
> pressure
> > cutoff switches?
> >
> > I don't want to add more parts if there is a simpler way. Thanks in
> > advance.
> >
> > Mark Grady
> > Northern IN - '78 Kingsley
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS

Life is too short to hold a grudge; slash some tires and call it even !
 
The factory pressure switch shuts off at 120psi i believe. The 9294 bag
will take that.

Sully
77 eleganza 2
Seattle

> My suggestion is to keep another driver out of Your seat !
>
> Mike in NS
>

>
> > Todd -
> >
> > Thanks for your reply. My question is a 'what if' -- that being if
> another
> > driver flips the switches to raise and leaves them inadvertently. On the
> > OEM system, the compressors reach a maximum PSI about the same time the
> OEM
> > bag does. As you state, the newer bags need less pressure.
> >
> > So my question is if you unintentionally over inflate them, should there
> be
> > a safety precaution, such as a high limit switch or 100 PSI pop off
> valve?
> >

> >
> > > Mark,
> > > If you current height control and inflation system is functioning
> > correctly
> > > and you switch to the Sullybilt system there is no need to limit the
> > > pressure output of the compressor. The system will work exactly as it
> > does
> > > with the oem bag setup. The air compressors will just not work as hard
> > due
> > > to lower air pressure required to obtain the same heights with the
> > > Sullybilt system.
> > >
> > > Sully
> > > 77 eleganza 2
> > > Seattle
> > >
> > > On Fri, Mar 3, 2017 at 6:03 PM mark grady

> > >
> > > I did a quick search on this list, and also looked at the manuals and
> > > addendum for '78. Here's my question.
> > >
> > > By what method is the maximum pressure to the air spring bellows
> > controlled
> > > by the EL2 system? I'm going to change to a Sully system, which uses
> less
> > > air pressure.
> > >
> > > The ride height sensors work great. I have cleaned and reconditioned
> the
> > > EL2 compressors. I have done the house battery EL2 power mod. In all
> > this,
> > > I didn't see any high pressure control provision.
> > >
> > > I have a twin needle suspension pressure gauge in the McNeil dash. But
> -
> > If
> > > someone else is driving and hits the raise buttons, I feel that some
> kind
> > > of safeguard is needed to prevent hyper extending the bags. Is there a
> > > provision in the stock EL2 pumps, or should I just get two NC high
> > pressure
> > > cutoff switches?
> > >
> > > I don't want to add more parts if there is a simpler way. Thanks in
> > > advance.
> > >
> > > Mark Grady
> > > Northern IN - '78 Kingsley
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
>
>
>
> --
> Michael Beaton
> 1977 Kingsley 26-11
> 1977 Eleganza II 26-3
> Antigonish, NS
>
> Life is too short to hold a grudge; slash some tires and call it even !
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Someone smarter than I am once told me "Don't fix what ain't broke". That
applies here. If your system only requires 75 psi to max out, set the upper
limit on the compressor to 80 or so, and forget about it. Plenty of other
stuff on a GMC to worry about.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

> The factory pressure switch shuts off at 120psi i believe. The 9294 bag
> will take that.
>
> Sully
> 77 eleganza 2
> Seattle
> On Mon, Mar 6, 2017 at 5:17 AM Kingsley Coach

>
> > My suggestion is to keep another driver out of Your seat !
> >
> > Mike in NS
> >

> >
> > > Todd -
> > >
> > > Thanks for your reply. My question is a 'what if' -- that being if
> > another
> > > driver flips the switches to raise and leaves them inadvertently. On
> the
> > > OEM system, the compressors reach a maximum PSI about the same time the
> > OEM
> > > bag does. As you state, the newer bags need less pressure.
> > >
> > > So my question is if you unintentionally over inflate them, should
> there
> > be
> > > a safety precaution, such as a high limit switch or 100 PSI pop off
> > valve?
> > >
> > > On Sun, Mar 5, 2017 at 1:11 PM, Todd Sullivan

> > >
> > > > Mark,
> > > > If you current height control and inflation system is functioning
> > > correctly
> > > > and you switch to the Sullybilt system there is no need to limit the
> > > > pressure output of the compressor. The system will work exactly as it
> > > does
> > > > with the oem bag setup. The air compressors will just not work as
> hard
> > > due
> > > > to lower air pressure required to obtain the same heights with the
> > > > Sullybilt system.
> > > >
> > > > Sully
> > > > 77 eleganza 2
> > > > Seattle
> > > >
> > > > On Fri, Mar 3, 2017 at 6:03 PM mark grady

> > > >
> > > > I did a quick search on this list, and also looked at the manuals and
> > > > addendum for '78. Here's my question.
> > > >
> > > > By what method is the maximum pressure to the air spring bellows
> > > controlled
> > > > by the EL2 system? I'm going to change to a Sully system, which uses
> > less
> > > > air pressure.
> > > >
> > > > The ride height sensors work great. I have cleaned and reconditioned
> > the
> > > > EL2 compressors. I have done the house battery EL2 power mod. In all
> > > this,
> > > > I didn't see any high pressure control provision.
> > > >
> > > > I have a twin needle suspension pressure gauge in the McNeil dash.
> But
> > -
> > > If
> > > > someone else is driving and hits the raise buttons, I feel that some
> > kind
> > > > of safeguard is needed to prevent hyper extending the bags. Is there
> a
> > > > provision in the stock EL2 pumps, or should I just get two NC high
> > > pressure
> > > > cutoff switches?
> > > >
> > > > I don't want to add more parts if there is a simpler way. Thanks in
> > > > advance.
> > > >
> > > > Mark Grady
> > > > Northern IN - '78 Kingsley
> > > > _______________________________________________
> > > > GMCnet mailing list
> > > > Unsubscribe or Change List Options:
> > > > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > > > _______________________________________________
> > > > GMCnet mailing list
> > > > Unsubscribe or Change List Options:
> > > > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > > >
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > >
> >
> >
> >
> > --
> > Michael Beaton
> > 1977 Kingsley 26-11
> > 1977 Eleganza II 26-3
> > Antigonish, NS
> >
> > Life is too short to hold a grudge; slash some tires and call it even !
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Sir, big truck suspensions and brakes work off air. Compressor keeps storage tanks ~ 125 psi. They do have 90psi regulators coming out of the
tanks. Big trucks air suspension operates at about 70 psi with 80,000 lb legal on the ground. Sometimes drivers have been known to double up loads
for $$$. The 90 lb limit is so DOT can recognize a overloaded truck. The airbags are tough and will take whatever our compressors will put out. If
it will ease your mind just go to big truck dealer and get a regulator for the tank outlet. The low air light on the big trucks have a sensor in the
tank to switch light and buzzer on at 70 lb.

> Todd -
>
> Thanks for your reply. My question is a 'what if' -- that being if another
> driver flips the switches to raise and leaves them inadvertently. On the
> OEM system, the compressors reach a maximum PSI about the same time the OEM
> bag does. As you state, the newer bags need less pressure.
>
> So my question is if you unintentionally over inflate them, should there be
> a safety precaution, such as a high limit switch or 100 PSI pop off valve?
>

>
> > Mark,
> > If you current height control and inflation system is functioning correctly
> > and you switch to the Sullybilt system there is no need to limit the
> > pressure output of the compressor. The system will work exactly as it does
> > with the oem bag setup. The air compressors will just not work as hard due
> > to lower air pressure required to obtain the same heights with the
> > Sullybilt system.
> >
> > Sully
> > 77 eleganza 2
> > Seattle
> >

> >
> > I did a quick search on this list, and also looked at the manuals and
> > addendum for '78. Here's my question.
> >
> > By what method is the maximum pressure to the air spring bellows controlled
> > by the EL2 system? I'm going to change to a Sully system, which uses less
> > air pressure.
> >
> > The ride height sensors work great. I have cleaned and reconditioned the
> > EL2 compressors. I have done the house battery EL2 power mod. In all this,
> > I didn't see any high pressure control provision.
> >
> > I have a twin needle suspension pressure gauge in the McNeil dash. But - If
> > someone else is driving and hits the raise buttons, I feel that some kind
> > of safeguard is needed to prevent hyper extending the bags. Is there a
> > provision in the stock EL2 pumps, or should I just get two NC high pressure
> > cutoff switches?
> >
> > I don't want to add more parts if there is a simpler way. Thanks in
> > advance.
> >
> > Mark Grady
> > Northern IN - '78 Kingsley
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

--
C. Boyd
76 Crestmont
East Tennessee
 
Sir,  big truck suspensions and brakes work off air.  Compressor keeps storage tanks ~ 125 psi.  They do have 90psi regulators coming out of the tanks.  Big trucks air suspension operates at about 70 psi with 80,000 lb legal on the ground.  Sometimes drivers have been known to double up loads for $$$.  The 90 lb limit is so DOT can recognize a overloaded truck.  The airbags are tough and will take whatever our compressors will put out.  If it will ease your mind just go to big truck dealer and get a regulator for the tank outlet.  The low air light on the big trucks have a sensor in the tank to switch light and buzzer on at 70 lb. 
 
Am 06.03.2017 um 16:53 schrieb THOMAS R WHITTON:
> (Yahoo puts in the ridiculous question marks (?) after every period all by itself)

I didn't see any question mark after any period.

--
Best regards

Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA
 
Sir, the regulators are preset at 90 psi. The low air sensors are set at 70 psi. They are set at DOT regulations. Adjustable regulators are
available bout anywhere. I have my '76 set at 125 psi.

> (Yahoo puts in the ridiculous question marks (?) after every period all by itself)
>
> Chuck,
> Ref. Big truck air pressure regulars.  Are adjustable regulators available or are they factory set at 70 pounds?  I have the Todd Sullivan's
> "SullBilt" system.  My air compressor keeps pumping until about 110 PSI  The system works great and apparently 110 PSI doesn't hurt anything but
> I would like it to shut off earlier.
> Tom Whitton26 foot updated GMCPaducah, KY
> Message: 10
> Date: Mon, 06 Mar 2017 08:13:37 -0700
> From: Charles Boyd
> To: gmclist
> Subject: Re: [GMCnet] Electrolevel II maximum pressure control
> Message-ID:
> Content-Type: text/plain;  charset="utf-8"
>
> Sir,  big truck suspensions and brakes work off air.  Compressor keeps storage tanks ~ 125 psi.  They do have 90psi regulators coming out of
> the tanks.  Big trucks air suspension operates at about 70 psi with 80,000 lb legal on the ground.  Sometimes drivers have been known to double up
> loads for $$$.  The 90 lb limit is so DOT can recognize a overloaded truck.  The airbags are tough and will take whatever our compressors will put
> out.  If it will ease your mind just go to big truck dealer and get a regulator for the tank outlet.  The low air light on the big trucks have a
> sensor in the tank to switch light and buzzer on at 70 lb. 
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

--
C. Boyd
76 Crestmont
East Tennessee
 
Sir, big truck suspensions and brakes work off air. Compressor keeps storage tanks ~ 125 psi. They do have 90psi regulators coming out of the tanks. Big trucks air suspension operates at about 70 psi with 80,000 lb legal on the ground. Sometimes drivers have been known to double up loads for $$$. The 90 lb limit is so DOT can recognize a overloaded truck. The airbags are tough and will take whatever our compressors will put out. If it will ease your mind just go to big truck dealer and get a regulator for the tank outlet. The low air light on the big trucks have a sensor in the tank to switch light and buzzer on at 70 lb.
_______________________________________________
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Well, that went sideways faster than an oil and tire discussion.

Just to wrap this up, I have a '78 with a rebuilt, fully working
Electrolevel 2 system. No air tank. No pressure switch. I'm changing to a
new, lower pressure, larger sized air spring.

Mike in NS, I think I'll take your advice -- but also put a red slice of
pie shaped warning sticker on the face of the dual needle air pressure
gauge.

Mark in northern IN
'78 Kingsley 'Bucky'

> you can adjust the low pressure (on) of the compressor and the high
> prsesure (off) of the compressor, within the pressure regulator
> switch....Brian 77 ele 455
>
>
> ________________________________
> From: Gmclist on behalf of THOMAS R
> WHITTON
> Sent: March 6, 2017 8:53 AM
> To: gmclist
> Subject: Re: [GMCnet] Electrolevel II maximum pressure control
>
> (Yahoo puts in the ridiculous question marks (?) after every period all by
> itself)
>
> Chuck,
> Ref. Big truck air pressure regulars. Are adjustable regulators available
> or are they factory set at 70 pounds? I have the Todd Sullivan's
> "SullBilt" system. My air compressor keeps pumping until about 110 PSI
> The system works great and apparently 110 PSI doesn't hurt anything but I
> would like it to shut off earlier.
> Tom Whitton26 foot updated GMCPaducah, KY
> Message: 10
> Date: Mon, 06 Mar 2017 08:13:37 -0700
> From: Charles Boyd
> To: gmclist
> Subject: Re: [GMCnet] Electrolevel II maximum pressure control
> Message-ID:
> Content-Type: text/plain; charset="utf-8"
>
> Sir, big truck suspensions and brakes work off air. Compressor keeps
> storage tanks ~ 125 psi. They do have 90psi regulators coming out of the
> tanks. Big trucks air suspension operates at about 70 psi with 80,000 lb
> legal on the ground. Sometimes drivers have been known to double up loads
> for $$$. The 90 lb limit is so DOT can recognize a overloaded truck. The
> airbags are tough and will take whatever our compressors will put out. If
> it will ease your mind just go to big truck dealer and get a regulator for
> the tank outlet. The low air light on the big trucks have a sensor in the
> tank to switch light and buzzer on at 70 lb.
> _______________________________________________
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Mark, You got a lot of comment for people that do NOT have EL II suspension and their suggestion did not apply to your coach. .

If you wanted to spend the money, You could add 2 pressure switches to the circuits and set them to whatever value that you want to use. They usually
have about a 20 PSI difference between off and on. McMaster has them and so does Menards in plumbing department. Be careful with these as some of
them will not close when the pressure is zero. It is some kind of safety feature that you do not want. I just had one that I returned to Menards and
only discovered the "feature" when the second one that I got failed the same way.

I think Jim K. at Applied GMC might also have a solution. You might call him.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
Applied is on my work list today. Thanks!

mg

> Mark, You got a lot of comment for people that do NOT have EL II
> suspension and their suggestion did not apply to your coach. .
>
> If you wanted to spend the money, You could add 2 pressure switches to the
> circuits and set them to whatever value that you want to use. They usually
> have about a 20 PSI difference between off and on. McMaster has them and
> so does Menards in plumbing department. Be careful with these as some of
> them will not close when the pressure is zero. It is some kind of safety
> feature that you do not want. I just had one that I returned to Menards and
> only discovered the "feature" when the second one that I got failed the
> same way.
>
> I think Jim K. at Applied GMC might also have a solution. You might call
> him.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
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> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Applied GMC

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