RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Monaco Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 05-22-2020, 06:35 AM   #1
Junior Member
 
Monaco Owners Club
Join Date: May 2009
Posts: 21
Tag Axle Pressure ????

We have a 2003 Monaco Dynasty with a tag axle.
There is a guage in the engine compartment that tells you how much pressure is on the tag.
Does anyone know what this pressure should be?
If not the exact number perhaps you know the range it should fall within.
Thanks for any information you can share.
__________________

ladyvol is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-22-2020, 07:12 AM   #2
Senior Member
 
Twomed's Avatar
 
Monaco Owners Club
Join Date: Oct 2009
Location: On the road
Posts: 1,733
Start with 45-50. You really need to weigh the coach and adjust it to get it set properly.

The procedure for weighing and setting is covered really well in Section 2 of your big Owner Manual.

https://www.monacocoach.com/rv-owners-manuals Get your manual here if you don't have one. BIG download, Monaco had one of the best manuals in the industry back then (Country Coach too).
__________________

__________________
Happy Trails,
06 Dynasty Countess III ISL//3060
07 Hummer H3
Twomed is offline   Reply With Quote
Old 05-22-2020, 07:40 AM   #3
Senior Member
 
K7JV's Avatar
 
Join Date: Jul 2006
Posts: 1,412
Twomed is spot on! We have the same coach that he has, and we made several trips over the scales, one day, tweaking and measuring.

I hope that some will chime in, because I don't know the answer, myself. I prefer facts over theories, but I've not found definitive facts on this. Here's what I've done, and why.

We increased the load on the tag until the front axle was fairly heavily loaded, but still well within its posted rating. As a result, if you go to the tire manufacturers tables, all six of our rear tires are happy at the sidewall posted minimum inflation pressure of 80 psi. The coach rides very nicely and the rear tire wear is minimal, other than some rounding on the tag tires from scuffing in tight turns. Age has been the only factor on tire replacement. Checking and tire wear has absolutely not been an issue, and we have never covered our tires to protect them from the sun.

If you go to the tire manufacturers tables, with our loading the front tires should be inflated to approximately 110 to 115 psi (cold). The wheels are rated for 120 psi cold, and are the limiting factor for that axle. Our front axle has run 75,000 miles with a load of approximately 14,500 pounds. It is rated for 15,000 pounds. The ride on the front is firm, but the coach is very stable. And again, tire wear has not been an issue.

As you load the tag, you add load to the front. Whatever you do, be sure to respect the ratings on your front axle as well as your drive and tag axles, and be sure to respect the and follow the manufacturers recommended inflation pressures for the tires on those axles.

Do not get anal about maintaining the exact recommended pressures. Five to ten psi either direction (cold) truly is not an issue. The only caveat there is that I would not go below the minimum pressure indicated on the tire sidewall. And lastly, I personally would not go around the block without a tire monitoring system (TMS) on the coach. We know a number of folks that either deeply regretted not having one, or that were saved a bunch because they had one, possibly even including their lives.
__________________
Jim & Angie, Boise, ID
2006 Monaco Dynasty Countess III
2017 GMC Acadia Denali
K7JV is offline   Reply With Quote
Old 05-22-2020, 10:04 AM   #4
Senior Member


 
Monaco Owners Club
Join Date: Mar 2018
Location: Blairsville, GA & WPB, FL
Posts: 2,725
Send a message via ICQ to Ivylog
On a 03 I would start at 40 psi which will require 70 psi in your tag tires. Still need to weigh. I used 45 but my 04 Dynasty was fairly heavy at 45K lbs.

Instead of replacing the 6 rear tires with 295, I went with 11R22.5... probably the most common truck tire and same diameter. Had to increase the psi by 10.
__________________
This post is my opinion, worth what you paid for it.
Our ”New” ride...08 HR Navigator 45’. A nice upgrade after 14 years with a 04 Dynasty 42’.
Ivylog is online now   Reply With Quote
Old 05-22-2020, 10:27 PM   #5
Member
 
LilGTO71's Avatar
 
Monaco Owners Club
Join Date: Dec 2015
Posts: 34
I have an 08 42’ Camelot. I never paid much attention to TAG pressure until I called Source Engineering in Eugene, Oregon to ask about their front shocks on my coach. During the conversation, i was asked about the weight and TAG pressure. He stated start at 50 and then move up to 60. WOW is all i can say. With the Safety Plus and the Watts Steering Assembly, the ride at 60 lbs of down pressure is incredible. No Sway or suck in When passed by a semi now. Tire pressures Fr-115, Duals-100, TAG-95.
__________________

John and Kay
2008 Monaco Camelot 42PDQ
LilGTO71 is offline   Reply With Quote
Old 05-23-2020, 12:06 AM   #6
Member
 
Monaco Owners Club
Join Date: Oct 2019
Posts: 41
Quote:
Originally Posted by LilGTO71 View Post
I have an 08 42’ Camelot. I never paid much attention to TAG pressure until I called Source Engineering in Eugene, Oregon to ask about their front shocks on my coach. During the conversation, i was asked about the weight and TAG pressure. He stated start at 50 and then move up to 60. WOW is all i can say. With the Safety Plus and the Watts Steering Assembly, the ride at 60 lbs of down pressure is incredible. No Sway or suck in When passed by a semi now. Tire pressures Fr-115, Duals-100, TAG-95.

Hi John,
I have a 2007 Camelot, as I look at my tag gauge mine is at 45psi. In March I drove to Lake Havasu to buy 8 new tires. I ask the tire installer what air pressure do they recommend in these tires. (295 X 80R 22.5) and they told me that they just run the tire pressures to 100psi in all 8 tires. I questioned that and did some more checking and that was the same answer I got back from repetitively from a majority of the tire shops. I have thought about adjusting the tag air pressure up but thought it might be a good idea to put it on a scale first to see what the sales say about tag pressure.
Thanks
Frank.
Quick68 is offline   Reply With Quote
Old 05-23-2020, 06:38 AM   #7
Senior Member
 
Twomed's Avatar
 
Monaco Owners Club
Join Date: Oct 2009
Location: On the road
Posts: 1,733
Quote:
Originally Posted by Quick68 View Post
Hi John,
I have a 2007 Camelot, as I look at my tag gauge mine is at 45psi. In March I drove to Lake Havasu to buy 8 new tires. I ask the tire installer what air pressure do they recommend in these tires. (295 X 80R 22.5) and they told me that they just run the tire pressures to 100psi in all 8 tires. I questioned that and did some more checking and that was the same answer I got back from repetitively from a majority of the tire shops. I have thought about adjusting the tag air pressure up but thought it might be a good idea to put it on a scale first to see what the sales say about tag pressure.
Thanks
Frank.
Proper procedure is weigh and set pressures per the tire engineers.

https://www.michelinb2b.com/wps/b2bc...g_pressure.pdf
https://www.michelinrvtires.com/refe...and-bulletins/

Good reading...lots of better info than the tire shop.
__________________
Happy Trails,
06 Dynasty Countess III ISL//3060
07 Hummer H3
Twomed is offline   Reply With Quote
Old 05-23-2020, 11:08 AM   #8
Senior Member
 
96 Wideglide's Avatar
 
Holiday Rambler Owners Club
Join Date: Aug 2010
Posts: 6,032
Quote:
Originally Posted by Quick68 View Post
Hi John,
I have a 2007 Camelot, as I look at my tag gauge mine is at 45psi. In March I drove to Lake Havasu to buy 8 new tires. I ask the tire installer what air pressure do they recommend in these tires. (295 X 80R 22.5) and they told me that they just run the tire pressures to 100psi in all 8 tires. I questioned that and did some more checking and that was the same answer I got back from repetitively from a majority of the tire shops. I have thought about adjusting the tag air pressure up but thought it might be a good idea to put it on a scale first to see what the sales say about tag pressure.
Thanks
Frank.
100psi is probably not enough for your steer axle tires, and slightly high for your 6 rear tires.

I would go with the pressure's printed on the plackard on the wall next to your drivers seat.
__________________
Ben & Sharon
2008 43' Holiday Rambler Scepter PDQ
96 Wideglide is online now   Reply With Quote
Old 05-23-2020, 08:14 PM   #9
Senior Member
 
JohnBoyToo's Avatar
 
Monaco Owners Club
Join Date: May 2012
Location: DFW, Tex-US
Posts: 5,786
Wow, thanks for asking this...

I looked at this a while back and found two pics of my psi setting and now I have to go back to the cat scales, thankyouverymuch !
I do recall having to adjust it since my 13k front GAWR could be way over weight easily with too much tag pressure pushing the back up and the front down !!!

Now to find out if it should be 35psi or 45 psi
https://catscale.com/
Attached Thumbnails
Click image for larger version

Name:	tagCapture.JPG
Views:	4
Size:	150.0 KB
ID:	286687   Click image for larger version

Name:	20160328Latest.jpg
Views:	5
Size:	164.0 KB
ID:	286689  

Click image for larger version

Name:	2016-03-28 013.jpg
Views:	4
Size:	192.4 KB
ID:	286690  
__________________
'11 Monaco Diplomat 43DFT RR10R pushed by a '14 Jeep Wrangler JKU. History.. 5'ers: 13 Redwood 38gk, 11 MVP Destiny, Open Range TT, popups, vans, tents...
JohnBoyToo is offline   Reply With Quote
Old 05-24-2020, 04:58 AM   #10
Senior Member


 
Monaco Owners Club
Join Date: Mar 2018
Location: Blairsville, GA & WPB, FL
Posts: 2,725
Send a message via ICQ to Ivylog
I would start at 40 as a 03 Dynasty doesn’t weigh near as much as later years... no need for 45. I would want the drive axle at 18,000 or more.
__________________
This post is my opinion, worth what you paid for it.
Our ”New” ride...08 HR Navigator 45’. A nice upgrade after 14 years with a 04 Dynasty 42’.
Ivylog is online now   Reply With Quote
Old 05-24-2020, 05:23 AM   #11
Senior Member
 
Twomed's Avatar
 
Monaco Owners Club
Join Date: Oct 2009
Location: On the road
Posts: 1,733
delete ...more coffee
__________________

__________________
Happy Trails,
06 Dynasty Countess III ISL//3060
07 Hummer H3
Twomed is offline   Reply With Quote
Reply



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
Tag axle or not to Tag axle... mikecav Newmar Owner's Forum 48 05-12-2020 09:15 AM
Tag axle vs no tag axle sdblossom Class A Motorhome Discussions 26 08-08-2017 10:19 PM
Air Pressure on Tag vs Tag Tire Air Pressure dmason Monaco Owner's Forum 3 07-24-2013 08:49 AM
Tag Axle vs. Non-Tag Barlow46 Class A Motorhome Discussions 18 03-09-2013 07:26 PM
HELP Perplexed about Tag or No tag axle? HohoDad Monaco Owner's Forum 32 01-18-2012 07:18 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 03:07 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×