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Coach weighing - Tire scales [message #305898] Tue, 23 August 2016 16:25 Go to next message
Chr$ is currently offline  Chr$   United States
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Registered: January 2004
Location: Scottsdale, AZ
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Senior Member
Folks, a while back there was some discussion about weighing coaches at rally's with portable scales that get the actual weight at each tire.

Does anyone in Arizona have or know of a set that can be borrowed, rented or someplace other than a scrap yard scale that measures the entire weight? I am blowing china bomb tires with my trailer and I really need to get the actual weights.

I am so close to looking for a GMC Bogie setup to put on my trailer, because these lippert axles are total crap. Wheel bearings are about 1 1/4" inches in diameter, make the GMC fronts look like something from a Sherman Tank.





-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
Re: Coach weighing - Tire scales [message #305908 is a reply to message #305898] Tue, 23 August 2016 22:03 Go to previous messageGo to next message
Harry is currently offline  Harry   Canada
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Can you go to the scales on the hiway to get weighed?
Up here the scales are left on all the time. No charge.
Re: Coach weighing - Tire scales [message #305910 is a reply to message #305898] Tue, 23 August 2016 22:43 Go to previous messageGo to next message
Carl S. is currently offline  Carl S.   United States
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Location: Tucson, AZ.
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I think Western States has a set of scales. Talk to Armand Minnie.

Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
Re: Coach weighing - Tire scales [message #305931 is a reply to message #305910] Wed, 24 August 2016 13:03 Go to previous messageGo to next message
Chr$ is currently offline  Chr$   United States
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
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Senior Member
Carl, thanks, I'll look into that.
Harry, I can do that, but it only gets the total vehicle weight. I need point loads on each wheel.


-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
Re: [GMCnet] Coach weighing - Tire scales [message #305932 is a reply to message #305931] Wed, 24 August 2016 15:02 Go to previous messageGo to next message
Keith V is currently offline  Keith V   United States
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Location: Mounds View,MN
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Senior Member
Sometimes you can pull onto the scale with only 1 side on the scale and the other on the ground.



>
> Carl, thanks, I'll look into that.
> Harry, I can do that, but it only gets the total vehicle weight. I need point loads on each wheel.
> --
> -Chr$: Perpetual SmartAss
> Scottsdale, AZ
> 77 Ex-Kingsley 455 SOLD!
> 2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
>
> Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
>
> _______________________________________________
> GMCnet mailing list
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
Re: [GMCnet] Coach weighing - Tire scales [message #305937 is a reply to message #305932] Wed, 24 August 2016 15:50 Go to previous messageGo to next message
Hal StClair   United States
Messages: 971
Registered: March 2013
Location: Rio Rancho NM
Karma: -12
Senior Member
I've a set of scales but I'm a way from you and they are hard to transport. Not something I'd like to carry in the GMC, these things are each 15"x36" and the storage/travel box is heavy. If you're in the neighborhood you're more than welcome to stop by and we'll get it done. The most accurate way is to find a level spot and get a scale under every tire-nice when you have enough scales.
Hal


"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane." 1977 Royale 101348, 1977 Royale 101586, Diesel powered, 1974 Eagle Bus 45',w/slideout, Rio Rancho, NM
Re: [GMCnet] Coach weighing - Tire scales [message #305940 is a reply to message #305931] Wed, 24 August 2016 16:33 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
You can get weights for individual wheels at a CAT scale. They have three pads one for the prime mover and two for trailers. You
pull the front wheels on the first trailer pad and the rears on the second trailer pad; that will give you total weight, front axle
weight and rear axle weight. You then back off the scales and pull back on with the driver side wheels JUST off the scales; that
will give you the passenger side weights. Back off the scales again and pull back on with the passenger wheels JUST off the scales;
that will give you the driver side weights.

You'll need to go inside and discuss what you want to do with the scale operator and you will have get a phone number you can talk
to them as you won't be able to use the mike setup for trucks.

You will have to pay for multiple weights but it's not much.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Chris
Sent: Thursday, August 25, 2016 4:04 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Coach weighing - Tire scales

Carl, thanks, I'll look into that.
Harry, I can do that, but it only gets the total vehicle weight. I need point loads on each wheel.
--
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.

Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Coach weighing - Tire scales [message #305942 is a reply to message #305940] Wed, 24 August 2016 16:58 Go to previous messageGo to next message
pzerkel is currently offline  pzerkel   United States
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Registered: September 2007
Location: Salisbury, IL
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Rob,

I am sure I am missing something; but if you have the total weight, and then (either) driver or passenger side weight, couldn't you easily calculate the opposite side weight via simple subtraction, thereby negating the need to drive over and pay for a third weighing?


Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
Re: [GMCnet] Coach weighing - Tire scales [message #305946 is a reply to message #305942] Wed, 24 August 2016 19:32 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Paul,

Remember I'm the PEDANTIC MECHANIC!

IIRC the total cost for all three weights was less than $20.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Paul Zerkel
Sent: Thursday, August 25, 2016 7:58 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Coach weighing - Tire scales

Rob,

I am sure I am missing something; but if you have the total weight, and then (either) driver or passenger side weight, couldn't you
easily calculate the opposite side weight via simple subtraction, thereby negating the need to drive over and pay for a third
weighing?

--
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)



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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Coach weighing - Tire scales [message #305948 is a reply to message #305946] Wed, 24 August 2016 19:59 Go to previous messageGo to next message
Kingsley Coach is currently offline  Kingsley Coach   United States
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Location: Nova Scotia Canada
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Paul

Pay...???

I just drive to the scale near Amherst NS and they weigh what I want
weighed. We wave and I drive off..

That's how it's done here..

Mike in NS

On Wed, Aug 24, 2016 at 9:32 PM, Rob Mueller
wrote:

> Paul,
>
> Remember I'm the PEDANTIC MECHANIC!
>
> IIRC the total cost for all three weights was less than $20.
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Paul
> Zerkel
> Sent: Thursday, August 25, 2016 7:58 AM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Coach weighing - Tire scales
>
> Rob,
>
> I am sure I am missing something; but if you have the total weight, and
> then (either) driver or passenger side weight, couldn't you
> easily calculate the opposite side weight via simple subtraction, thereby
> negating the need to drive over and pay for a third
> weighing?
>
> --
> Paul Zerkel
> '78 Eleganza II
> Salisbury IL (near Springfield)
>
>
>
> _______________________________________________
> 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 !
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Re: [GMCnet] Coach weighing - Tire scales [message #305963 is a reply to message #305942] Thu, 25 August 2016 00:23 Go to previous messageGo to next message
Chr$ is currently offline  Chr$   United States
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
Senior Member
Yes and no. RV's are generally not even weight wise. Take a GMC. 400# onan on one side and propane and water on the other. When the water tank is empty, weight is lopsided. I have a similar setup. I added a 200# Honda EV4010 where there once was a little water heater instead. I really want the actuals, because I am considering LT tires in lieu of ST tires.

I'll look into the cat scale, but I have been in touch with a company that will use the wheel scales for $95...


-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
Re: [GMCnet] Coach weighing - Tire scales [message #305965 is a reply to message #305963] Thu, 25 August 2016 01:12 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
I guess I am missing something here.

Pull on any state highway weigh station scale when they are closed.

On the left side you will see a display with the individual axle weights and the total weight. Write them down. Then pull off the scales and circle around again. Pull on the scales a second time with the right side tires off of the scale. Now you will see the weight of the left wheels only on the same displays. Write them down. Pull off of the scales and subtract the left side numbers from the first numbers. You will have all of the numbers that you want.

You could do the same thing when they are open, just stop and ask first.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] Coach weighing - Tire scales [message #305967 is a reply to message #305963] Thu, 25 August 2016 02:19 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Chris,

Aha, a man after my own heart!

For the record I have weighed Double Trouble at two different Cat scales, the key is to talk to the scale operators inside the store
BEFORE you drive onto the scales.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Chris
Sent: Thursday, August 25, 2016 3:24 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Coach weighing - Tire scales

Yes and no. RV's are generally not even weight wise. Take a GMC. 400# onan on one side and propane and water on the other. When the
water tank is empty, weight is lopsided. I have a similar setup. I added a 200# Honda EV4010 where there once was a little water
heater instead. I really want the actuals, because I am considering LT tires in lieu of ST tires.

I'll look into the cat scale, but I have been in touch with a company that will use the wheel scales for $95...
--
-Chr$:


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Coach weighing - Tire scales [message #305968 is a reply to message #305965] Thu, 25 August 2016 02:21 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Ken,

I never tried a state highway scales, I thought driving on them with a non-commercial vehicle was verboten! Thanks for the tip!

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Ken Burton
Sent: Thursday, August 25, 2016 4:13 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Coach weighing - Tire scales

I guess I am missing something here.

Pull on any state highway weigh station scale when they are closed.

On the left side you will see a display with the individual axle weights and the total weight. Write them down. Then pull off the
scales and circle around again. Pull on the scales a second time with the right side tires off of the scale. Now you will see the
weight of the left wheels only on the same displays. Write them down. Pull off of the scales and subtract the left side numbers
from the first numbers. You will have all of the numbers that you want.

You could do the same thing when they are open, just stop and ask first.
--
Ken


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Coach weighing - Tire scales [message #305969 is a reply to message #305967] Thu, 25 August 2016 02:51 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
That is the first that I have ever heard of that one. Plenty of non-commercial trucks meet the requirement to be weighed which changes state to state and sometime scale to scale. I just rented a 26" truck from Penske a week ago to help my brother move. It met the requirement to be weighed. The particular scale I went over was posted "all vehicles over 6 ton must weigh".

Many years ago I was stopped by the cops in a Toyota pick up for not stopping at the scales in my favorite state of Illinois. The whole truck could not have exceeded the allowed weight on wheel. I went that way every day on the way home from work. I was told by the cop that I must stop. I did stop once after that and then proceeded to ignore the sign after that.

You can stop. Most states leave the scales turned on 24x7 even when they are not there. I weighed my wife's Jimmy at an Indiana scale on the way home from Bean Station this year. 4860 pounds.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] Coach weighing - Tire scales [message #305986 is a reply to message #305967] Thu, 25 August 2016 19:03 Go to previous messageGo to next message
Brian Waddell is currently offline  Brian Waddell   United States
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Registered: March 2010
Karma: -4
Senior Member
How could you not KNOW THAT!....brian


________________________________
From: Gmclist on behalf of Rob Mueller
Sent: August 25, 2016 1:19 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Coach weighing - Tire scales

Chris,

Aha, a man after my own heart!

For the record I have weighed Double Trouble at two different Cat scales, the key is to talk to the scale operators inside the store
BEFORE you drive onto the scales.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Chris
Sent: Thursday, August 25, 2016 3:24 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Coach weighing - Tire scales

Yes and no. RV's are generally not even weight wise. Take a GMC. 400# onan on one side and propane and water on the other. When the
water tank is empty, weight is lopsided. I have a similar setup. I added a 200# Honda EV4010 where there once was a little water
heater instead. I really want the actuals, because I am considering LT tires in lieu of ST tires.

I'll look into the cat scale, but I have been in touch with a company that will use the wheel scales for $95...
--
-Chr$:


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Re: Coach weighing - Tire scales [message #306019 is a reply to message #305898] Fri, 26 August 2016 19:28 Go to previous messageGo to next message
Chr$ is currently offline  Chr$   United States
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
Senior Member
I had no idea you could use a gov't scale when they were closed. These days you would think it's a homeland security no-no.
I went to a CAT scale today. Only 10 bucks. Smile I spent more in gas driving over there. Rolling Eyes

I was bang on with my assumption that my 4,300# dry trailer is 6,000# loaded. With both axles on the third pad, it came it at 5,980#. plus whatever is on the tongue. (10%? 15%?)
Now we then did a separate axle weigh. Front axle on front pad, rear axle on center pad (Couldn't do it on 2&3 because the center pad is too long.

Front trailer axle 2,640#
Rear trailer axle 3,240#

Is this right or does the tongue come into play here? Together, they add up to 100# lower, so I attribute that to measurement error, but how can two axles with the tire contact patch about 2 ft apart be so different?

I'm still within the load spec of the china bombs (1,870#) per tire, but sadly am a bit over for the 14" LT tires that are available to me. Bummer.

Here is another note, Discount tire inflated my 50#max tire to 58#...

For comparison, my Sport Trac and my trailer weigh 12,220# with my fat ass in it. About the same as the GMC, but running with only a 280 Cu In Engine...

FYI, CAT will not allow single tire weighing. Say it messes up their scales.



-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"

[Updated on: Fri, 26 August 2016 19:28]

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Re: [GMCnet] Coach weighing - Tire scales [message #306027 is a reply to message #306019] Fri, 26 August 2016 20:14 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Chris,

I'm sorry for what I am about to write.

GMC owners don't let the report below put you off, disregard it COMPLETELY as it is totally irrelevant for a GMC!

You CAN weigh a GMC at a CAT scale using the instructions I supplied.

I re-iterate I did it TWICE at two DIFFERENT CAT scales without ANY problems or complaints from the scale operators!

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Chris
Sent: Saturday, August 27, 2016 10:28 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Coach weighing - Tire scales

I had no idea you could use a gov't scale when they were closed. These days you would think it's a homeland security no-no.
I went to a CAT scale today. Only 10 bucks. :p I spent more in gas driving over there. :roll:

I was bang on with my assumption that my 4,300# dry trailer is 6,000# loaded. With both axles on the third pad, it came it at
5,980#. plus whatever is on the tongue. (10%? 15%?)
Now we then did a separate axle weigh. Front axle on front pad, rear axle on center pad (Couldn't do it on 2&3 because the center
pad is too long.

Front trailer axle 2,640#
Rear trailer axle 3,240#

Is this right or does the tongue come into play here? Together, they add up to 100# lower, so I attribute that to measurement error,
but how can two
axles with the tire contact patch about 2 ft apart be so different?

I'm still within the load spec of the china bombs (1,870#) per tire, but sadly am a bit over for the 14" LT tires that are available
to me. Bummer.

Here is another note, Discount tire inflated my 50#max tire to 58#...

For comparison, my Sport Trac and my trailer weigh 12,220# with my fat ass in it. About the same as the GMC, but running with only a
280 Cu In Engine...

FYI, CAT will not allow single tire weighing. Say it messes up their scales.

-Chr$: Perpetual SmartAss


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Coach weighing - Tire scales [message #306030 is a reply to message #306027] Fri, 26 August 2016 22:11 Go to previous messageGo to next message
Hal StClair   United States
Messages: 971
Registered: March 2013
Location: Rio Rancho NM
Karma: -12
Senior Member
Just a thought about weighing a coach one side at a time on 'Cat' scales. If you can find a scale that is perfectly level from the scale to the side you'll be parking on, you should get a good accurate reading. If the side where you park is lower or higher than the scale, not so much. I weighed my SOB at a Pilot out of Indio, CA and it wasn't perfect but close to level and I had a 700 lb difference in weight from side to side vs individual wheel weights. Of course I'm dealing with a lot more weight to begin with but the physics still hold true with the GMC. Just don't take the readings as Gospel if you weigh as above.
Hal


"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane." 1977 Royale 101348, 1977 Royale 101586, Diesel powered, 1974 Eagle Bus 45',w/slideout, Rio Rancho, NM
Re: Coach weighing - Tire scales [message #306038 is a reply to message #306019] Sat, 27 August 2016 08:17 Go to previous message
Matt Colie is currently offline  Matt Colie   United States
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Registered: March 2007
Location: S.E. Michigan
Karma: 7
Senior Member
Chr$ wrote on Fri, 26 August 2016 20:28
<snip>
FYI, CAT will not allow single tire weighing. Say it messes up their scales.

Chri$,

Those that say this are only partly correct.
The scales do not accommodate lateral load well at all. It will not damage (aka mess up) the unit, but it may provide an inaccurate reading. And yes, if a fully loaded highway truck pushes the platform sideways, it can cause harm. This is why the scale has a straight lead in and many have low guide bars. Find one without the guide bars.

Matt


Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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