Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-09-2009, 11:27 AM   #1
2 Rivet Member
 
Utahgoldrup's Avatar
 
1991 25' Excella
Salt Lake City , Utah
Join Date: Mar 2008
Posts: 98
Getting Running Gear Balanced?

We had 4 new tires put on our trailer last Fall and the tire dealership told us it was not necessary to have the tires balanced for a travel trailer so we didn't. I talking about this, Andy at Inland RV said we were basically asking for trouble if we did not have ALL of the running gear balaced.

Question - what am I asking my Airstream dealer to do when I tell them I want all of my running gear balanced? I just don't want to sound like I don't know what that means when I talk to them and at the moment, I really do not know what that means exactly, can anyone tell me specifically what this means?

Thanks for your help!!
__________________

__________________
Utahgoldrup is offline   Reply With Quote
Old 03-09-2009, 11:41 AM   #2
CLOUDSPLITTER "Tahawas"
 
ROBERT CROSS's Avatar

 
2003 25' Classic
Zanadude Nebula , WNY
Join Date: Jun 2007
Posts: 11,153
Images: 1
IMHO

Go to a facility that offers "road force" balance of tire/wheel.
Rotors/drums should be in specs.
Ask before getting an appointment>
__________________

__________________
PFC.....

“After all these years the reason I continue to love Thanksgiving.....I still sit at the kids table.”
RLC

Sandra wanted to go to Cleveland on vacation,
but I’m the Husband, so we went to Cleveland.
RLC
ROBERT CROSS is offline   Reply With Quote
Old 03-09-2009, 02:10 PM   #3
Rivet Master
 
2011 25' FB Flying Cloud
Anywhere & , Everywhere
Join Date: Aug 2006
Posts: 1,090
I'm another that would like to know just exactly what "balanced running gear" means. Looking forward to a reply from someone who knows. Andy?
__________________
Al - K4GLU is offline   Reply With Quote
Old 03-09-2009, 02:15 PM   #4
CLOUDSPLITTER "Tahawas"
 
ROBERT CROSS's Avatar

 
2003 25' Classic
Zanadude Nebula , WNY
Join Date: Jun 2007
Posts: 11,153
Images: 1
"running gear"= for trailer, all rotating components, wheel/tire, brake rotor and/or brake drum.
__________________
PFC.....

“After all these years the reason I continue to love Thanksgiving.....I still sit at the kids table.”
RLC

Sandra wanted to go to Cleveland on vacation,
but I’m the Husband, so we went to Cleveland.
RLC
ROBERT CROSS is offline   Reply With Quote
Old 03-09-2009, 02:38 PM   #5
2 Rivet Member
 
Utahgoldrup's Avatar
 
1991 25' Excella
Salt Lake City , Utah
Join Date: Mar 2008
Posts: 98
Smile

Okay - one last question. I can visualize how they would balance the tire & wheel but what do they do with the drums to get them balanced?
__________________
Utahgoldrup is offline   Reply With Quote
Old 03-09-2009, 02:45 PM   #6
7751
 
Torii's Avatar
 
1975 25' Tradewind
Huntington Beach , California
Join Date: Apr 2005
Posts: 152
Images: 10
It basically means that the wheel, tire, brake drum are all balanced. From what I've read in many threads here, the brake drums can be very un-balanced in their natural state and require significant amounts of weight to balance.

I wonder then if having disk brakes makes balancing the running gear a mute issue... (assuming the tire/wheel combo is balanced as usual)

What is the actual cost to have the running gear balanced? Seems like it would run a few hundred dollars. I assume it must be re-done periodically and whenever tires get changed etc.

Then there is the question of centramatic wheel balancers... do these negate the need for balancing the running gear if you have drums? if you have disks?

I have read many threads on the topic of balancing running gear but only have seen vague unclear answers to these particular questions.

I dunno... I have seen evidence in my own trailer that would seem to support the need for balanced running gear but I am baffled as to why it is shrouded in such uncertainty. I've read here that Airstream does not do this on new units nor do they acknowledge the need to balance running gear. Anyone know this for sure?
__________________
Torii is offline   Reply With Quote
Old 03-09-2009, 03:02 PM   #7
CLOUDSPLITTER "Tahawas"
 
ROBERT CROSS's Avatar

 
2003 25' Classic
Zanadude Nebula , WNY
Join Date: Jun 2007
Posts: 11,153
Images: 1
The assembly can be spun and balanced on the vehicle. Not necessarily recommended.

Static Balance as per Andy at Inland, with Snap-on equipment,
IMHO the best static balancer.

Or road force, wheel spun on a machine while applying force to represent load.

In 28yrs in the auto biz, I found very few drums/disc out of balance, less than a dozen for sure and none in the last 10yrs.

After balancing if vibration still present, have the drum/disc balanced.

None on our trailer needed it, how bout others?
__________________
PFC.....

“After all these years the reason I continue to love Thanksgiving.....I still sit at the kids table.”
RLC

Sandra wanted to go to Cleveland on vacation,
but I’m the Husband, so we went to Cleveland.
RLC
ROBERT CROSS is offline   Reply With Quote
Old 03-09-2009, 03:04 PM   #8
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by Torii View Post
It basically means that the wheel, tire, brake drum are all balanced. From what I've read in many threads here, the brake drums can be very un-balanced in their natural state and require significant amounts of weight to balance.

I wonder then if having disk brakes makes balancing the running gear a mute issue... (assuming the tire/wheel combo is balanced as usual)

What is the actual cost to have the running gear balanced? Seems like it would run a few hundred dollars. I assume it must be re-done periodically and whenever tires get changed etc.

Then there is the question of centramatic wheel balancers... do these negate the need for balancing the running gear if you have drums? if you have disks?

I have read many threads on the topic of balancing running gear but only have seen vague unclear answers to these particular questions.

I dunno... I have seen evidence in my own trailer that would seem to support the need for balanced running gear but I am baffled as to why it is shrouded in such uncertainty. I've read here that Airstream does not do this on new units nor do they acknowledge the need to balance running gear. Anyone know this for sure?
Balancing the rotor along with the tire and wheel, is as simple as with the hub and drum.

The cost to balance 4 tires, wheels, hub and drums, is far less than "several hundred dollars."

http://inlandrv.com/articles/wheel-balancing/

Rebalancing should be checked and/or done, every 10,00 miles when they are done with equipement such as we use.

The best way for you to check out the stance Airstream has about balancing, is to call them, and get "names."

We are not permitted to post "exact prices," since we are a vendor.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 03-09-2009, 03:06 PM   #9
1 Rivet Member
 
1979 23' Safari
Centerville , Ohio
Join Date: Jun 2007
Posts: 7
Just a quick reply about the balancing question. I'm curious about the response concerning A/S saying balancing isn't necessary. I own a company that about yearly calibrates the wheel balancer they use to balance all the wheel/tire assemblies going on the new units coming out of Jackson Center.
As far as your situation goes, any good tire store with an up to date computer balancer (and nearly all of them are) should be able to balance your wheel/tire assemblies with little or no trouble. As far as balancing brake drums goes, without getting too technical; first nobody would be able to do it and secondly it would provide little or no added value to your trailer. A brake drum would have to be attrociously out of balance to affect any vibration given it's small diameter in comparison to your wheel. The small amount they might out be is not worth chasing down. Balance your wheels and you should be fine.
__________________
jeftec is offline   Reply With Quote
Old 03-09-2009, 03:19 PM   #10
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by jeftec View Post
Just a quick reply about the balancing question. I'm curious about the response concerning A/S saying balancing isn't necessary. I own a company that about yearly calibrates the wheel balancer they use to balance all the wheel/tire assemblies going on the new units coming out of Jackson Center.

A brake drum would have to be attrociously out of balance to affect any vibration given it's small diameter in comparison to your wheel. The small amount they might out be is not worth chasing down. Balance your wheels and you should be fine.
The idea of running gear balancing is not to increase the value of the trailer, but to "protect" the value instead of beating it to death.

Probably 99.9 percent of drums, prior to the "unicast" are all out of balance, up to 3 (three) pounds.

Spin those at 60 mph and you will soon see what's "not left intact" in the trailer.

Contrary to some opinions, the "small diameter" of the hub and drum, "PLUS" it's weight of 37 pounds, will shake the trailer to pieces.

We repair damages like that, everyday.

The small amounts of unbalance, are important as well. When out of balance, the tire will bounce up and down, causing hot spots, "AND" blowouts.

Our records clearly show even 2 ounces out, is more than enough, to cause long term damage, as well as cupping the tires.

Running gear balancing is not a "luxury."

It's a must, "or else".

My 42 1/2 years wth Airstream, has proven that thousands of times over.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 03-09-2009, 03:35 PM   #11
Rivet Master
 
crispyboy's Avatar
 
1994 30' Excella
alexandria , Kentucky
Join Date: Aug 2004
Posts: 1,656
Images: 3
I put a set of Centramatics on my pickup and a set on the trailer. I can't say much for the trailer yet as I haven't towed it far enough but the pickup (which had balanced tires/wheels) made a very noticable difference. I don't get any more shake/vibration that I had in the past. I plan on putting the Centramatics on my other vehicle I was so impressed by the product.
__________________
crispyboy is offline   Reply With Quote
Old 03-09-2009, 03:45 PM   #12
7751
 
Torii's Avatar
 
1975 25' Tradewind
Huntington Beach , California
Join Date: Apr 2005
Posts: 152
Images: 10
Quote:
Originally Posted by Inland RV Center, In View Post
The idea of running gear balancing is not to increase the value of the trailer, but to "protect" the value instead of beating it to death.

Probably 99.9 percent of drums, prior to the "unicast" are all out of balance, up to 3 (three) pounds.

Spin those at 60 mph and you will soon see what's "not left intact" in the trailer.

Contrary to some opinions, the "small diameter" of the hub and drum, "PLUS" it's weight of 37 pounds, will shake the trailer to pieces.

We repair damages like that, everyday.

The small amounts of unbalance, are important as well. When out of balance, the tire will bounce up and down, causing hot spots, "AND" blowouts.

Our records clearly show even 2 ounces out, is more than enough, to cause long term damage, as well as cupping the tires.

Running gear balancing is not a "luxury."

It's a must, "or else".

My 42 1/2 years wth Airstream, has proven that thousands of times over.

Andy
Thanks for sharing the knowledge Andy. I have a few follow-up questions.

How does one know if they have "Unicast" drums? Was there a particular year in which manufacturing changed over?

Are "Unicast" drums manufactured to tighter specs? maybe these drums the ones that Jeftec speaks of that rarely need balancing?
__________________
Torii is offline   Reply With Quote
Old 03-09-2009, 03:50 PM   #13
7751
 
Torii's Avatar
 
1975 25' Tradewind
Huntington Beach , California
Join Date: Apr 2005
Posts: 152
Images: 10
Quote:
Originally Posted by crispyboy View Post
I put a set of Centramatics on my pickup and a set on the trailer. I can't say much for the trailer yet as I haven't towed it far enough but the pickup (which had balanced tires/wheels) made a very noticable difference. I don't get any more shake/vibration that I had in the past. I plan on putting the Centramatics on my other vehicle I was so impressed by the product.
Thanks for the info on the Centramatics, Do you happen to know the limits as to what they can balance out in terms of weight? I assume they take the place of any weights that would normally be used to balance the tire/wheel assembly. If the brake drum is off balance by a few pounds as suggested by Andy, I wonder if the Centramatics are sufficient to counteract it.
__________________
Torii is offline   Reply With Quote
Old 03-09-2009, 04:00 PM   #14
7751
 
Torii's Avatar
 
1975 25' Tradewind
Huntington Beach , California
Join Date: Apr 2005
Posts: 152
Images: 10
Quote:
Originally Posted by jeftec View Post
Just a quick reply about the balancing question. I'm curious about the response concerning A/S saying balancing isn't necessary. I own a company that about yearly calibrates the wheel balancer they use to balance all the wheel/tire assemblies going on the new units coming out of Jackson Center.
As far as your situation goes, any good tire store with an up to date computer balancer (and nearly all of them are) should be able to balance your wheel/tire assemblies with little or no trouble. As far as balancing brake drums goes, without getting too technical; first nobody would be able to do it and secondly it would provide little or no added value to your trailer. A brake drum would have to be attrociously out of balance to affect any vibration given it's small diameter in comparison to your wheel. The small amount they might out be is not worth chasing down. Balance your wheels and you should be fine.
jeftec,

That confirms that the tire/wheel assembly gets balanced at the Airstream factory as I would certainly expect but I was really wondering about this running gear idea that gets kicked around here on the Airstream Forum. (brake drum balancing)... What you say about this makes sense because I can hardly imagine brake drums being manufactured today that are very much out of balance... That being said, there are some others here that suggest it IS the case. Did you see this? whaddya think?

-T
__________________

__________________
Torii is offline   Reply With Quote
Reply

Tags
balance, running gear, tires


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Running gear balance problem? bobfowler Base Camp 25 08-23-2007 06:15 PM
Running gear balancing ROBERTSUNRUS Axles 30 05-24-2007 12:02 PM
How To Balance Running Gear Inland RV Center, In Axles 26 07-08-2004 04:14 PM
Running gear balance? Cedars Axles 79 06-10-2004 03:57 PM
Add Running Gear Links Here Action Link Archive 2 09-13-2002 09:01 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:59 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.