Foretravel Owners' Forum

Foretravel Motorhome Forums => Foretravel Discussions => Topic started by: jeff on July 04, 2011, 04:12:27 pm

Title: tag axle
Post by: jeff on July 04, 2011, 04:12:27 pm
When do you raise your tag axle?  Just purchased a 02 with a tag and am getting different opinions.  Trust the Foreforum much more than saleman and mechanics. 
Title: Re: tag axle
Post by: George Hatfield on July 04, 2011, 04:28:12 pm
I think you put it up when you hit flight speed!  Oops.....wrong toy!

Title: Re: tag axle
Post by: George Stoltz on July 04, 2011, 04:32:41 pm
From what little I know you do it when parking so that the tag tires don't scuff against the pavement.  And I don't know much more than George the other.

Title: Re: tag axle
Post by: Peter & Beth on July 04, 2011, 04:35:24 pm
Typically when making a sharp turn, the tag axle will be "scrubbing" the ground causing lateral stress on the tag axle components and tires.  In fact even w/o a tag a sharp turn will scrub the duallies a bit.
Title: Re: tag axle
Post by: Paul Smith on July 04, 2011, 04:46:17 pm
You might be able to make a turn called SHARP in a 34 footer. But the word "sharp" would never leap to mind turning a 40 ft two axel 1999 U320 ;o) 
Quote
Typically when making a sharp turn, the tag axle will be "scrubbing" the ground causing lateral stress on the tag axle components and tires. In fact even w/o a tag a sharp turn will scrub the duallies a bit.

Peter & Beth Martin
"Forrest" the 1997 Foretravel U270 34' WTBI, Build#5156 2004 Element EX AWD
Cincinnati, OH

Title: Re: tag axle
Post by: Peter & Beth on July 04, 2011, 04:51:31 pm
Paul,
Point taken.  Even so, I try not to cut the steering axle to the max whenever possible.  In a manner of speaking, a 45 footer scrubs its tag axle whenever the steering is cut to make the sharpest turn it can make.
Title: Re: tag axle
Post by: Dan Stansel on July 04, 2011, 04:56:48 pm
Jeff/Carol:  I saw a 42 ft coach with tag turn.  He raised the tag and it turned as short as a 34 or 36 ft coach.  The turning radius is less with a tag.  Just lift and turn when you need to make a sharp turn either going forward or reverse.  Dan Stansel
Title: Re: tag axle
Post by: Ted H on July 04, 2011, 09:07:26 pm
Lifting the tag shortens the wheeelbase  giving the coach a tighter turning radius, the offset is you now have a BIG tail swing in the ready to hit anything and everything that is close to the curb. Kind of like the happy dog swinging his tail when you come home... Watch that tail...
Ted in Seattle
Title: Re: tag axle
Post by: txforetravel on July 05, 2011, 07:15:40 am
For sure when you are making a "tight" turn but I also notice that you have a 2002 U320, the same year as ours and our tag is not a "lifting" tag but one that "relaxes", meaning that it drags without pressure on it.  It will skuff the tires when you make a turn but when released, it does help with turning. 

Have someone watch the tag when you hit the tag dump switch and they can let you know if it's a lifting or "dragging" tag. 

I'm not sure what year FT went to lifting tag axles. 

Title: Re: tag axle
Post by: amos.harrison on July 05, 2011, 10:10:56 am
About the only time I dump my tag is when maneuvering into tight campsites, and then it's a real help.  It's hard to miss the beep, beep when you've dumped, but if you have to need to dump the tag while driving, don't go over 5 mph.  Remember it will take several minutes to build up pressure again before you can drive off.
Title: Re: tag axle
Post by: PatC on July 05, 2011, 10:19:09 am
Lift it in RV Parks where you have lots of tight turns - make sure you are going very slow, especially over the speed bumps.  Lift it anytime you are turning at a very tight intersection.  Lift it anyplace where you have to back in doing a 90 degree tight turn.
Title: Re: tag axle
Post by: steve on July 05, 2011, 06:54:57 pm
Some notes on the lifting tag.

I use it when making a 'sharp' turn, especially when backing in to a site, you can drag the tires a fair amount otherwise and scuff up the campground road as well, especially with dirt/gravel sites.

When we hit the tag dump button on our coach the back end will droop down a bit amount so that's something to be aware of.  Ours needs to dump first, only when complete will it see its out of travel mode height and adjust itself back to travel mode height.  That fancy HWH is just a single tasker ;), probably has a Z80 processor (that's for the geeks amongst us).  That cycle takes about 30 seconds as does the un-dump cycle, let the cycle complete before you level.

When we lift the tag and drive a short distance our ABS warning lights go on since the system sees the coach moving but the tag wheels are not (since they are up in the air on our coach).  Once you put the tag back down it takes a few hundred feet to go out, (OK sometimes thats yards and once in a while miles but it does go out ;) )



Title: Re: tag axle
Post by: Horace B. Cupp on July 06, 2011, 10:41:30 am
Steve, this is interesting:
Quote
"Once you put the tag back down it takes a few hundred feet to go out, (OK sometimes thats yards and once in a while miles but it does go out"
When I have lifted my tag for maneuvering then lowered it again for driving, the ABS light stays on until I turn off the ignition and, of course, turn it on again.
Title: Re: tag axle
Post by: John S on July 06, 2011, 09:38:21 pm
Ok you got good information on the tag. Lift it when slowly turning into or out of a camp site or a driveway. I do not lift it pulling into fuel stops or anywhere that I will be driving off soon. 

Now the question is details man.... we want to see the new coach...
Title: Re: tag axle
Post by: steve on July 06, 2011, 11:45:19 pm
Quote
When I have lifted my tag for maneuvering then lowered it again for driving, the ABS light stays on until I turn off the ignition and, of course, turn it on again.
So yours does not reset until you cycle the ignition? 

On ours once the light is on cycling the ignition will not reset it, only driving a short distance as it allows the ABS brain to see that all the sensors are working.  Past that to reset the light takes either hitting the reset switch behind the dash or cycling the connectors on the Wabco box (for those times when it comes on without a tag lift)

Would not be the first time coaches of the same year act a bit differently  :)