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-   -   Spartan Reyco-Granning IFS1200/1320/1370 (https://www.irv2.com/forums/f25/spartan-reyco-granning-ifs1200-1320-1370-a-464521.html)

Ray,IN 10-08-2019 09:24 AM

Spartan Reyco-Granning IFS1200/1320/1370
 
An easier method to measure ride height is found on pg 27 of the service manual.
Measure distance between front shock mounting bolt centers, it should be 16.12".
Reference: https://www.spartanchassis.com/cps/l...3404218750.PDF

ASU777 10-08-2019 04:31 PM

Quote:

Originally Posted by Ray,IN (Post 4988562)
An easier method to measure ride height is found on pg 27 of the service manual.
Measure distance between front shock mounting bolt centers, it should be 16.12".
Reference: https://www.spartanchassis.com/cps/l...3404218750.PDF

Thanks for this!

mhudson 10-08-2019 07:02 PM

I wish mine was that easy. There is only one ride height on the right front. It sets both the front bags. Then the front side to side is adjusted by going back and forth between the two rear to level the front side to side while maintaining the correct rear ride height. It can be a challenge!

ASU777 10-08-2019 08:36 PM

Quote:

Originally Posted by mhudson (Post 4989193)
I wish mine was that easy. There is only one ride height on the right front. It sets both the front bags. Then the front side to side is adjusted by going back and forth between the two rear to level the front side to side while maintaining the correct rear ride height. It can be a challenge!

Which suspension is this for?

mhudson 10-08-2019 08:55 PM

Quote:

Originally Posted by RetiredinFL (Post 4989319)
Which suspension is this for?

Its the Rayco Granning. 2005 Spartan MM chassis.
Its special! (Dry sarcasm) Have the brackets for the other front ride height valve but nothing mounted. I took it to Spartan for the class a couple of years ago and when the tech was doing the inspection he came and got me. Said someone had removed a valve! Got the senior tech involved and he was familiar with what American had done. Has to do with weight distribution of the coach. They held class for a couple of the techs and me to show how to set ride height. It takes a lot of patience which I seem to be lacking.

Ray,IN 10-09-2019 09:38 PM

Quote:

Originally Posted by mhudson (Post 4989339)
Its the Rayco Granning. 2005 Spartan MM chassis.
Its special! (Dry sarcasm) Have the brackets for the other front ride height valve but nothing mounted. I took it to Spartan for the class a couple of years ago and when the tech was doing the inspection he came and got me. Said someone had removed a valve! Got the senior tech involved and he was familiar with what American had done. Has to do with weight distribution of the coach. They held class for a couple of the techs and me to show how to set ride height. It takes a lot of patience which I seem to be lacking.

All Reyco-Granning IFS models have an ID tag on them with model # and serial #. Crawl under, copy down those numbers. If yours was special built it will so state.

Dale70 10-10-2019 03:30 PM

Actually the REYCO - GRANNING IFS 1200 (and other weights) are commonly used on Spartans for a few years. My 2000 American Eagle has the IFS-1200

thx Dale

Mr_D 10-10-2019 03:43 PM

On our 2002 Dutch Star with 12,000# Reyco Granning axle there were two ride height valves. When Newmar upgraded it to the 14,600# axle it alsy has the two front valves.
Present rig has a 20,000# axle and only has one front valve and two on the rear. Even now with the Active Air I prefer two front and one rear sensor.

mhudson 10-10-2019 07:51 PM

Quote:

Originally Posted by Ray,IN (Post 4990610)
All Reyco-Granning IFS models have an ID tag on them with model # and serial #. Crawl under, copy down those numbers. If yours was special built it will so state.

Ray it's a standard Reyco-Granning IFS. The ride height is standard also. Its just the way Spartan went about getting the front end level. The manual has the procedure for setting the ride height with 2 front adjustment valves. Won't work with this one. Spartan is the one who set up the air system. The front end still has all the brackets to hold the other valve, just nothing there. The air schematic from Spartan for the front air shows the second valve deleted. It drives and rides great, just a pain to get everything adjusted. I don't understand why they had to do it that way, something about the weight of this particular model American Tradition (40L). Just different than most out there. I know its running very close to the max on the front axle with us in it and full tanks.

CoachC 10-17-2019 08:51 PM

I don't wish to steal this thread or get too far off topic. Apologies if I am. Has anyone replaced front gags on the R-G 1200 series IRS? If so what bags were used. Mine will need replacement soon. Airlift, Firestone, Goodyear? If so, do you have a part number.
Spartan does not have any in stock and their supplier wants $600+ per bag. That seems nut to me.:banghead:
Thanks for any help.

Cheers

Ray,IN 10-17-2019 11:41 PM

Quote:

Originally Posted by CoachC (Post 5001277)
I don't wish to steal this thread or get too far off topic. Apologies if I am. Has anyone replaced front gags on the R-G 1200 series IRS? If so what bags were used. Mine will need replacement soon. Airlift, Firestone, Goodyear? If so, do you have a part number.
Spartan does not have any in stock and their supplier wants $600+ per bag. That seems nut to me.:banghead:
Thanks for any help.

Cheers

Use the Google search box at page top to search for your subject question. I remember reading at least one thread that contained alternate air spring pt#'s. Firestone air springs are no longer available for older systems-I think that was in that thread.

Dale70 10-18-2019 06:27 AM

Here is the info from Mackwrench
I replaced mine about three years ago and he did his slightly before me.
It is not a hard job if you are reasonably mechanically inclined.
The hardest part may be the removal and replacement of each front wheel
I think we both have 2000 Eagles

===================
Air Bag Replacment


Front:
2W01-358-8760
Firestone Reversible Sleeve Air Spring


Rear:
2W01-358-9966
Firestone Reversible Sleeve Air Spring

I bought mine from www.truckspring.com
===========================
They seem to be still available on that side

PM me if you have issues.
thx Dale

CoachC 10-18-2019 01:58 PM

Thank you Dale!:bow: Mackwrench usually has solid info so I trust it's accurate. I'll check to see if Spartan service (Charlotte) will install. Just had my annual inspection/service completed there yesterday. Maybe they could fit me in before I head west after Christmas:whistling:

Thank you for your response Ray,IN

Cheers

mackwrench 10-18-2019 03:40 PM

Yes, still available....free shipping

www.truckspring.com

https://www.truckspring.com/Search.a...g+w01-358-8760

Ray,IN 10-21-2019 11:06 PM

Quote:

Originally Posted by mackwrench (Post 5002213)

Obviously I was incorrect, that's my fault for believing what I read on irv2.com without investigating for myself. However that spring pictured in the link does not look like the Firestone air springs on my Reyco-Granning 1200 IFS.

Dale70 10-22-2019 08:28 AM

Pictures can be deceiving especially when they only present one angle.
In this case it is from the top/bottom. The spring is 15 inches long when fully extended and almost 7 inches when fully compressed.

I will see if I can take a picture of that spring actually on the front of my my RV. It may be a bit difficult with the wheel in place but I will try later today

thx Dale

mackwrench 10-22-2019 09:24 AM

Spartan provided me the part # and a price, but also need about the same amount to ship to Florida! I was able to source the rears local, but the front came from truckspring.com with free shipping...

Dale70 10-22-2019 09:31 AM

2 Attachment(s)
Here is what the part that Mackwrench linked for the front looks like on my RV.
Suspension is aired up.

Attachment 264406

Attachment 264407

CoachC 10-22-2019 10:29 AM

I found another source for the front air bags for slightly less $$

SDTruckSprings.com.

$245 per bag with free shipping.

Cheers

Ray,IN 10-23-2019 09:10 PM

Quote:

Originally Posted by Dale70 (Post 5007029)
Here is what the part that Mackwrench linked for the front looks like on my RV.
Suspension is aired up.

Attachment 264406

Attachment 264407

:thumb: Yep, that looks like mine alright. I was reading the Firestone air springs webpage late last night. It would take a lot to rupture them the way they are constructed.
I learn something with every visit to irv2.com, and I've been here a looong time.

If you are interested in how to calculate the air pressure to support your vehicle, this is very informative: https://www.firestoneip.com/content/...erial_2014.pdf

CoachC 11-19-2019 02:33 PM

Hi All,
Again, thanks for all the input.
I wanted to give an update on my front airbags. I just returned from the Spartan factory service center in Charlotte. They installed new bags for me. I had trouble finding new bags but finally ended up ordering the W01 358 8760 bags. Unfortunately they were not an exact match. Bolt patterns were good but the base was much larger. That meant that all the weight would have been borne by the bosses were the 4 base plate bolts screwed in. Maybe that would have been fine but didn't want to risk that. The W01 358 8735 (and it's Continental cross) has the proper base plate diameter which more evenly spreads the load.
My IFS is the 1260S and I think is different from the IFS1200. Spartan did take me out to the shop and showed me the difference in bags and where they mount. They left the decision to me as to which bags I wanted to use. The bags with the larger diameter base would also need to be checked for clearance between tire and airbag when turned to the stops in each direction. I didn't want to mess with that thought either so went ahead and purchased bags from Spartan.
They did give me a break on airbag price but still not as economical as finding a different source.
I'm still very happy with Spartan factory service and their willingness to be flexible with the service they provide.:thumb:
Reyco-Granning gave me some good info also and cleared up some of my incorrect assumptions. They were less helpful in providing cross reference part numbers and only provided me with a parts diagram with old, superseded Granning part numbers. It was made clear they wanted me to go to their suppliers to purchase bags as they do not sell to individuals. I can respect that but was disappointed.:sad

Enjoy your Thanksgiving!

Cheers


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