Go Back   iRV2 Forums > THE CHASSIS CLUB FORUMS > Freightliner Motorhome Chassis Forum
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-28-2010, 06:00 PM   #1
Moderator Emeritus
 
smlranger's Avatar


 
Country Coach Owners Club
Freightliner Owners Club
Join Date: Sep 2004
Location: Smith Mountain Lake, Virginia
Posts: 5,045
Blog Entries: 1
Freightliner rear diff fluid change

OK, so how many with Frieghtliners really change the differential/rear axle lube as often as recommended in the manual? I had mine changed about 30,000 miles ago and they used Mobil 1 synthetic lube. I just don't see the logic in needing to change that lube very often.
__________________

__________________
'07 Country Coach Allure 470 #31578, Cummins ISL 425; 2012 Honda CR-V Toad: Air Force One Toad Brake.
Smith Mountain Lake, VA.
smlranger 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 02-28-2010, 06:42 PM   #2
Registered User
 
Join Date: Feb 2008
Posts: 266
Meritor changed their recommended change interval to 50,000 mi or one year. Synthetic oil is 250,000 or 3 years. I have a Meritor letter to that effect.

John
__________________

__________________
Pigman is offline   Reply With Quote
Old 02-28-2010, 06:58 PM   #3
Senior Member
 
Hooligan's Avatar
 
Freightliner Owners Club
Join Date: Apr 2002
Location: Pensacola
Posts: 1,628
smlranger:
Meritor Bulletin TP-9539 shows the lubrication schedule and approved fluids. It's available here. http://www.meritorhvs.com/MeritorHVS...nts/TP9539.PDF

Three year changes are much more reasonable!!!
__________________
Hooligan, Pensacola, Fl -U.S. Coast Guard Retired
2000 Georgie Boy Landau 36'Dp, 2008 Suzuki Toad
Our Pug "Lily" & "George" the Newfoundland
Hooligan is offline   Reply With Quote
Old 03-01-2010, 06:51 AM   #4
Senior Member
 
Join Date: Apr 2003
Location: Oakton, Va
Posts: 979
On my Freightliner XCS chassis the specified change interval for the differential fluid is 2 years. Miles never enter into my change intervals on the differential or any other thing on my MH. The only reason I can see for the time specification on differential oil change is condensation of water. Still I feel that the specification is very conservative.
__________________
Jim Walker
N Virginia
2014 Palazzo 33.2
Cummins 6.7 ISB, Allison 2100 6 Speed
J Walker is offline   Reply With Quote
Old 03-01-2010, 04:07 PM   #5
Senior Member
 
JoeT's Avatar
 
Ford Super Duty Owner
Join Date: Feb 2005
Location: McKinney, TX
Posts: 466
A Freightliner tech told me the reason for the frequent change interval is moisture and it affects synthetic as well.
__________________
Joe & Loretta Fischer
and the Dolly Molly
2012 Winnebago View 24M
JoeT is offline   Reply With Quote
Old 03-03-2010, 08:21 AM   #6
Senior Member
 
leedowney's Avatar
 
Join Date: Jan 2010
Location: Advance, NC
Posts: 134
Hey smlranger. Did you change the rear diff fluid yourself or have someone do it for you? If you did it yourself, was it very difficult to do? My Journey has about 40K miles on it and the previous owner wasn't much on keeping service records. It is on my short list of things I still need to do as well as changing the air filter and transmission fluid/filter. I bought the coach this past December and each weekend, I tackled a new maintenance task that I feel needs to be done. I sure wish the prev owner would have kept better records. When I called and asked him when the last time the "Air Dryer" had been serviced, he thought I talking about the "hair dryer" by the sink in the bathroom. I knew right then, he was not the maintenance junkie that I am.

Is there a link or diagram on instructions for this task or the other two I mentioned above (air filter or Trans fluid)?

Thanks
smlranger.
__________________
Lee & Ginger Downey
Advance, NC
2000 Winnebago Journey 36G
leedowney is offline   Reply With Quote
Old 03-03-2010, 08:58 PM   #7
Senior Member
 
Hooligan's Avatar
 
Freightliner Owners Club
Join Date: Apr 2002
Location: Pensacola
Posts: 1,628
Rear differential, remove the fill plug and the drain plug on the bottom, drain completely. Refill with 80w90 gear oil or 75w90 synthetic gear oil.
MERITOR RS-15-120 axle holds 16 pints.
Axle lubricants: http://www.meritorhvs.com/MeritorHVS...nts/TP9539.PDF

Freightliner Maintenance Manual for Rv chassis is here. FCCC Motorhome Chassis: Manuals Click operator/maintenance manuals. Then select maintenace tab then rv maintenance manual.
I put the link for approved rear axle lubricants above because in the freightliner manual, *** THERE IS A MISPRINT-Section 35-02 Rear Axle Oil Change "Refill axle with Transynd ATF" :: SHOULD BE GEAR OIL !!!
I use a manual lube pump that screws into the gear oil bottle to pump oil into the axle. (auto parts store)
__________________
Hooligan, Pensacola, Fl -U.S. Coast Guard Retired
2000 Georgie Boy Landau 36'Dp, 2008 Suzuki Toad
Our Pug "Lily" & "George" the Newfoundland
Hooligan is offline   Reply With Quote
Old 08-28-2013, 10:19 AM   #8
Senior Member
 
jhanan's Avatar
 
Winnebago Owners Club
Join Date: Jun 2007
Location: Charlton, NY
Posts: 363
Meritor changed there website links. Here is the update to where the TP9539 doc is at:
https://s3.amazonaws.com/helm-arm-lod/tp9539.pdf
__________________
02 Itasca Horizon 34HD, 05 Explorer, Falcon II bar, ReadyBreak, Regal LSR 2100 boat.
jhanan is offline   Reply With Quote
Old 08-28-2013, 10:38 AM   #9
Senior Member
 
jhanan's Avatar
 
Winnebago Owners Club
Join Date: Jun 2007
Location: Charlton, NY
Posts: 363
The FL link changed I keep a copy of this doc in the MH.
http://freightlinerchassis.com/docum...4504000000.pdf

Page 55-56 for the rear diff.
__________________
02 Itasca Horizon 34HD, 05 Explorer, Falcon II bar, ReadyBreak, Regal LSR 2100 boat.
jhanan is offline   Reply With Quote
Old 08-28-2013, 10:45 AM   #10
Senior Member
 
jhanan's Avatar
 
Winnebago Owners Club
Join Date: Jun 2007
Location: Charlton, NY
Posts: 363
And here is the updated link the maintenance manual:
https://secure.freightliner.com/newb...s%20manual.pdf
__________________
02 Itasca Horizon 34HD, 05 Explorer, Falcon II bar, ReadyBreak, Regal LSR 2100 boat.
jhanan is offline   Reply With Quote
Old 08-28-2013, 10:52 AM   #11
Senior Member
 
siggyd's Avatar
 
Freightliner Owners Club
Join Date: Aug 2005
Location: Chicagoland
Posts: 430
When I did the Differential on my former MH,all I could get in was 6 1/2
quarts of Mobil-1, 75W90. I guess you can not drain all of it.
Siggy
__________________
Siggy & Ursula.
2011 Newmar DSDP 4020 (no T,pre emission),
FTL XCR ,ISL 400,05 Saturn AWD,BrakeBuddy
siggyd is offline   Reply With Quote
Old 08-28-2013, 11:22 AM   #12
Senior Member
 
jhanan's Avatar
 
Winnebago Owners Club
Join Date: Jun 2007
Location: Charlton, NY
Posts: 363
This might be a stupid question, but I assume the rear wheel bearings are lubed from the the Differential oil. Correct?
__________________
02 Itasca Horizon 34HD, 05 Explorer, Falcon II bar, ReadyBreak, Regal LSR 2100 boat.
jhanan is offline   Reply With Quote
Old 08-28-2013, 11:58 AM   #13
Senior Member
 
siggyd's Avatar
 
Freightliner Owners Club
Join Date: Aug 2005
Location: Chicagoland
Posts: 430
YES
__________________
Siggy & Ursula.
2011 Newmar DSDP 4020 (no T,pre emission),
FTL XCR ,ISL 400,05 Saturn AWD,BrakeBuddy
siggyd is offline   Reply With Quote
Old 08-28-2013, 04:58 PM   #14
Senior Member
 
FIRE UP's Avatar
 
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 2,005
Quote:
Originally Posted by jhanan View Post
This might be a stupid question, but I assume the rear wheel bearings are lubed from the the Differential oil. Correct?
jhanan,
No Sir, no questions are "stupid". How else ya gonna learn? As has been answered, yes, they are lubed by the diff oil. And, I might add while all of you are under the large beast changing or checking that diff oil, spin your flash light to the seal area of back side of each hub and check them out. I just replaced the left hub seal a few months ago. It was not an overly hard job. A bit time consuming and, of course you need tools to be able to break free the lug nuts and the rather large hub nuts too.

If anyone's got a leak in the area, and would like to change the seal themselves, PM me and I'd be glad to assist. I didn't even tip the coach to the opposite side to keep the oil from running out while I had that side apart. Not much came out. But, one VERY IMPORTANT point here. If any of your air systems are like mine, you'll loose air over a given amount of time. I had to top off the system once a day to keep the air above the lower limit at which the spring system would automatically apply the parking brakes. No big deal, on mine, it's right there at the air dryer anyway. Just some info here, if anyone's interested.
Scott
__________________

__________________
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '08 GL 1800 Gold Wing
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Sophie character, (mini Schnauzer)
FIRE UP 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
How to Change Allison Transmission Fluid Tom-NC Allison Transmission Forum 23 07-19-2012 07:02 PM
Freightliner Rear Ride Height dutchstar03 Freightliner Motorhome Chassis Forum 16 11-13-2009 09:17 AM
Change Differential Fluid? surfride Workhorse and Chevrolet Chassis Motorhome Forum 9 01-27-2007 05:44 PM
How to get all trans fluid out of a 4L85E to change to Synthetic fluid? ChinaUK Workhorse and Chevrolet Chassis Motorhome Forum 6 07-06-2006 05:16 AM
Allison Fluid Change Advice mrsr71 Workhorse and Chevrolet Chassis Motorhome Forum 2 03-26-2006 12:35 PM


All times are GMT -6. The time now is 02:27 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2014, vBulletin Solutions, Inc.