Thomas compressor

[bartz paul]

Dan:

I'm goint to use it on mine.

Paul Bartz

From: Dan Winchester
To: gmcmotorhome
Sent: 7/23/99 8:54 PM
Subject: Re: GMC: Thomas compressor

Has any one looked into using the Thomas compressor on the Electro Level
II
system?

 

[dave mumert]

Hi all

I'm not sure that using the Thomas pump for a vacuum pump and compressor is
any cheaper than buying a used vacuum pump but I have the necessary diagrams
for you if you want to set it up for dual function.

The diagrams are on a temporary web page at www.mumert.com
Could someone please review it and move it to a permanent location. Let us
know where you put it.

The system proposed automatically switches from compressor to vacuum pump.
Vacuum pump has priority. The mode switches from compressor to vacuum pump
automatically even if it is running as a compressor. Switchover time should
be about 30 milliseconds (it is equal to the drop out time of the solenoid
valve).

Requires only 2 solenoid valves. Check at a local truck supply for air
valves.

Good luck

Dave
dave

> I tried getting in touch with the sales rep. this afternoon around 4 EST
> however the telephone system was having a problem with overloaded
circuits.
> I finally did get through at around 5:30 however everyone had gone for the
> day. Tomorrow, I will have a wiring diagram to peruse with the dual setup
of
> the 317 for vacuum and compressor use.
>
> Paul you mentioned someone already working on a wiring diagram, maybe we
> could post what we wind up with on a web page and let those with
electrical
> knowledge come up with a viable double use, brake back-up booster and air
bag
> inflator.
>

 

[ritch hwang]

Hey Scott, put me down for one of the 317's -- onwards to the requisite 30!
Any progress on sliding your new frame under the coach?

Catching up on digests after being gone for a month to NZ for new grandson
;-)....

As always, best regards.

~ Ritch & Betty Hwang ~ Clarkston, MI ~ mailto:rhwang
Visit our home page ~ http://www.concentric.net/~rhwang/
~ =^..^= Trinket ~ the shy Persian kitty ~
~ 76 GMC Birchaven ~ FMCA F249339 ~ RVClub 00930 ~ ICQ# 6408591~
(B}>

 

[hdavis]

Dave,

I copied it to

www.henry-davis.com/GMC

click on Thomas Pump Update

Henry

>Hi all
>
>I'm not sure that using the Thomas pump for a vacuum pump and compressor is
>any cheaper than buying a used vacuum pump but I have the necessary diagrams
>for you if you want to set it up for dual function.
>
>The diagrams are on a temporary web page at www.mumert.com
>Could someone please review it and move it to a permanent location. Let us
>know where you put it.
>
>The system proposed automatically switches from compressor to vacuum pump.
>Vacuum pump has priority. The mode switches from compressor to vacuum pump
>automatically even if it is running as a compressor. Switchover time should
>be about 30 milliseconds (it is equal to the drop out time of the solenoid
>valve).
>
>Requires only 2 solenoid valves. Check at a local truck supply for air
>valves.
>
>Good luck
>
>Dave
>dave
>
>
>> I tried getting in touch with the sales rep. this afternoon around 4 EST
>> however the telephone system was having a problem with overloaded
>circuits.
>> I finally did get through at around 5:30 however everyone had gone for the
>> day. Tomorrow, I will have a wiring diagram to peruse with the dual setup
>of
>> the 317 for vacuum and compressor use.
>>
>> Paul you mentioned someone already working on a wiring diagram, maybe we
>> could post what we wind up with on a web page and let those with
>electrical
>> knowledge come up with a viable double use, brake back-up booster and air
>bag
>> inflator.
>>
>
Henry Davis Consulting, Inc / new product consulting
PO Box 1270 / product readiness reviews
Soquel, Ca 95073 / IP reviews
ph: (831) 462-5199 / full service marketing
fax: (831) 462-5198
http://www.henry-davis.com/ http://www.henry-davis.com

 

[ritch hwang]

Whew, just got done reading *all* of the GMC digests accumulated since
we've been gone. Now that we're over the 29 mark re the Thomas 317
compressor, should we be looking at another price break for 49 or more?
Just a thought...

As always, best regards.

~ Ritch & Betty Hwang ~ Clarkston, MI ~ mailto:rhwang
Visit our home page ~ http://www.concentric.net/~rhwang/
~ =^..^= Trinket ~ the shy Persian kitty ~
~ 76 GMC Birchaven ~ FMCA F249339 ~ RVClub 00930 ~ ICQ# 6408591~
(B}>

 

[darren paget]

Great Idea Scott. Love those Thomas's.

I installed mine about a month ago. My Dana took 6 min 47 sec to inflate my bags
from dead flat to auto shut off. This was a rebuilt Dana. The Thomas 315 takes 4
min 17 sec. from complete flat at about 1/3 the decibels. Well worth the money.
Only $103.00 up here (after conversion) Easy upgrade. Super simple. Unbolt Dana
and wires, screw down Thomas reconnect wires. Add air line. Done 10 min max.
Again, Great Idea. I wish I had thought of it.

> Hello Gmcers!
>
> Today I got a call from the Thomas Compressor Rep. About 2 months ago there
> was quite a bit of discussion. I guess I made an inquiry to Thomas about
> purchasing a quantity of them. (30) IIRC we were discussing using the 315
> for the air bags and thinking about also using its vacuum capability for
> back-up to brake vacuum booster. Has anyone installed the Thomas 315?
> I had him give me a price if I bought them through Adohen Supply Co..
> Quantities were 10-29 $114.14 and for 30-59 $103.00. plus shipping costs
> which would be drop shipped from Wisconsin. Shipping wt was around 4.5lbs.
> Any thoughts?--
>
> Further discussion revealed Thomas will ship one compressor for experimental
> purposes at no cost for 30 days. If it works you pay, if it doesn't you ship
> it back, no questions asked. I am not even close to being able to do
> retrofitting with that system however if there is someone who would like to
> tinker speak-up and I will give you the Reps phone number and you can pursue.
>
> Scott NEHODA'S
> BACK YARD
>

- --
Darren Paget
76 Experimental
Another Fab Day
paget

 

[darren paget]

Scott, it was 158.00 Canadian. 103.00 US. I bought mine from a suspension supply
shop. I got it as a firestone Ride Rite pump. Same pump. Thomas supplies
Firestone. Maybe, check that angle. Darren

> In a message dated 8/5/99 11:47:46 AM Eastern Daylight Time,

>
> > Great Idea Scott. Love those Thomas's.
> >
> > I installed mine about a month ago. My Dana took 6 min 47 sec to inflate
> my
> > bags
> > from dead flat to auto shut off. This was a rebuilt Dana. The Thomas 315
> > takes 4
> > min 17 sec. from complete flat at about 1/3 the decibels. Well worth the
> > money.
> > Only $103.00 up here (after conversion) Easy upgrade. Super simple. Unbolt
> > Dana
> > and wires, screw down Thomas reconnect wires. Add air line. Done 10 min
> max.
> > Again, Great Idea. I wish I had thought of it.
> >
> Hi Darren!
>
> Darren I think you were the one who mentioned Thomas!
>
> Glad to here you are using a Thomas(315) . I Can't figure out how you got
> such a price since they are in quantity 30-59 $103.00. US funds. Plus
> shipping costs. I thought you had to use more Canadian dollors to equal Us
> dollars.
>
> Scott

- --
Darren Paget
76 Experimental
Another Fab Day
paget