Air pressure switch

W

wayne newland

New member
Jul 5, 1999
1,588
0
0
Is there a substitute for the air pressure switch 724460 on a 75
PalmBeach or is Cinnabar the only source? After installing a new air
tank I have 2 small leaks. One at where a fitting goes in. That I can
remove and start again. The other came not from where you screw in, but
from the inside of the air pressure switch. One more oppurtunity to
tighten up the system and keep the poor little air pump from working
itself to death. Thanks, guys...

Wayne Newland F9300 75 Palm Beach
 
I got one from Grainger. They have the fixed differential type (Grainger #
5B419) and one with an adjustable differential (#6B438.) Page 2895 in their
catelog; here's the link to their on-line version:
http://www.grainger.com/cgi-bin/ngs?5488496YXkk2895kk5B418

Richard

> Is there a substitute for the air pressure switch 724460 on a 75
> PalmBeach or is Cinnabar the only source? After installing a new air
> tank I have 2 small leaks. One at where a fitting goes in. That I can
> remove and start again. The other came not from where you screw in, but
> from the inside of the air pressure switch. One more oppurtunity to
> tighten up the system and keep the poor little air pump from working
> itself to death. Thanks, guys...
>
> Wayne Newland F9300 75 Palm Beach
>
 
Wayne,

P.S.

In my previous post I was assuming that your air system is the same as the one
in my '77 (Electrolevel I.)

Richard

> I got one from Grainger. They have the fixed differential type (Grainger #
> 5B419) and one with an adjustable differential (#6B438.) Page 2895 in their
> catelog; here's the link to their on-line version:
> http://www.grainger.com/cgi-bin/ngs?5488496YXkk2895kk5B418
>
> Richard
>
> > Is there a substitute for the air pressure switch 724460 on a 75
> > PalmBeach or is Cinnabar the only source? After installing a new air
> > tank I have 2 small leaks. One at where a fitting goes in. That I can
> > remove and start again. The other came not from where you screw in, but
> > from the inside of the air pressure switch. One more oppurtunity to
> > tighten up the system and keep the poor little air pump from working
> > itself to death. Thanks, guys...
> >
> > Wayne Newland F9300 75 Palm Beach
> >
>
 
Richard

Thanks, I called Grainger and the fixed type seems to be the closest to GMC's,
but the salesman said that it had a top end of 150 lbs. It may be adjustable
like the Penn unit. The price was less than $14 compared to $36 at Cinnabar.
Any comments about the safety in using the Grainger unit?

> I got one from Grainger. They have the fixed differential type (Grainger #
> 5B419) and one with an adjustable differential (#6B438.) Page 2895 in their
> catelog; here's the link to their on-line version:
> http://www.grainger.com/cgi-bin/ngs?5488496YXkk2895kk5B418
>
> Richard
>
> > Is there a substitute for the air pressure switch 724460 on a 75
> > PalmBeach or is Cinnabar the only source? After installing a new air
> > tank I have 2 small leaks. One at where a fitting goes in. That I can
> > remove and start again. The other came not from where you screw in, but
> > from the inside of the air pressure switch. One more oppurtunity to
> > tighten up the system and keep the poor little air pump from working
> > itself to death. Thanks, guys...
> >
> > Wayne Newland F9300 75 Palm Beach
> >
 
The 5B419 is the common replacement for the air switch used by the air
system. By fixed differential it means the 30 range between the set
points. You can set the start down to 90# and the cutoff would be at
120. The range for this switch is a low of 40 psi to a high of 150 psig
but it comes factory set at 95# to 125# which is ok!

J.R. Wright
GMC Greatlaker
77 Eleganza II
Michigan

>
> Richard
>
> Thanks, I called Grainger and the fixed type seems to be the closest to GMC's,
> but the salesman said that it had a top end of 150 lbs. It may be adjustable
> like the Penn unit. The price was less than $14 compared to $36 at Cinnabar.
> Any comments about the safety in using the Grainger unit?
>

>
> > I got one from Grainger. They have the fixed differential type (Grainger #
> > 5B419) and one with an adjustable differential (#6B438.) Page 2895 in their
> > catelog; here's the link to their on-line version:
> > http://www.grainger.com/cgi-bin/ngs?5488496YXkk2895kk5B418
> >
> > Richard
> >
> > > Is there a substitute for the air pressure switch 724460 on a 75
> > > PalmBeach or is Cinnabar the only source? After installing a new air
> > > tank I have 2 small leaks. One at where a fitting goes in. That I can
> > > remove and start again. The other came not from where you screw in, but
> > > from the inside of the air pressure switch. One more oppurtunity to
> > > tighten up the system and keep the poor little air pump from working
> > > itself to death. Thanks, guys...
> > >
> > > Wayne Newland F9300 75 Palm Beach
> > >
 
John

Thanks for a knowledgeable answer. I feel better about trying something that isn't
strictly GMC WHEN I get a positive feed-back. I hadn't ordered from Cinnebar yet
and the air pressure switch may be the original for all I know. Thanks again to all
of the people who answered.

Wayne Newland F9300 75 Palm Beach

> The 5B419 is the common replacement for the air switch used by the air
> system. By fixed differential it means the 30 range between the set
> points. You can set the start down to 90# and the cutoff would be at
> 120. The range for this switch is a low of 40 psi to a high of 150 psig
> but it comes factory set at 95# to 125# which is ok!
>
> J.R. Wright
> GMC Greatlaker
> 77 Eleganza II
> Michigan
>

> >
> > Richard
> >
> > Thanks, I called Grainger and the fixed type seems to be the closest to GMC's,
> > but the salesman said that it had a top end of 150 lbs. It may be adjustable
> > like the Penn unit. The price was less than $14 compared to $36 at Cinnabar.
> > Any comments about the safety in using the Grainger unit?
> >

> >
> > > I got one from Grainger. They have the fixed differential type (Grainger #
> > > 5B419) and one with an adjustable differential (#6B438.) Page 2895 in their
> > > catelog; here's the link to their on-line version:
> > > http://www.grainger.com/cgi-bin/ngs?5488496YXkk2895kk5B418
> > >
> > > Richard
> > >
> > > > Is there a substitute for the air pressure switch 724460 on a 75
> > > > PalmBeach or is Cinnabar the only source? After installing a new air
> > > > tank I have 2 small leaks. One at where a fitting goes in. That I can
> > > > remove and start again. The other came not from where you screw in, but
> > > > from the inside of the air pressure switch. One more oppurtunity to
> > > > tighten up the system and keep the poor little air pump from working
> > > > itself to death. Thanks, guys...
> > > >
> > > > Wayne Newland F9300 75 Palm Beach
> > > >
 
Arch,

I bought a sealed solid state unit from Leon Rosser(www.thinkjeep.com) a
Jeep accessory dealer. Pleased with it so far. I think you can find a
picture of it on their web site. On at 85 off at 115 IIRC.

Patrick

>
> I dont know what you got from Cinnabar but the one I got looks just
> like what was on the pump on our water well 40 years ago. The thing
> is also not the least bit weather tight. In the 18 months that I have had
> this thing it has gone from shutting off at 120 PSI to 135 PSI !!!! I plan
> to go to one of the places that sell compressors and find a sealed
> unit that works. I have a cheapie little 1 1/2 horse air compressor
> that has a better control on it ---and it is all sealed. 120 off and 90 on.
> I may just order a replacement for it.
>
> Take Care
> Arch

- --
Patrick Flowers
Mailto:patrick

The GMC Motorhome Page
http://www.gmcmotorhome.com
 
You must log in or register to reply here.
GMCMI Fall 2026 Rally
Get your shine on at www.cruzingear.co

Share this page

Share this page
Top Bottom
Back