Bus Conversions dot Com Bulletin Board
November 29, 2014, 01:50:10 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: 500 Members as of May 5th, 2006.  Smiley  3,499 Members as of October 21, 2012 Cheesy

   Home   Help Forum Rules Search Calendar Login Register BCM Home Page Contact BCM  
Pages: 1 [2]  All   Go Down
  Print  
Author Topic: How often should wheel bearings be repacked or checked?  (Read 3815 times)
buswarrior
Hero Member
*****
Offline Offline

Posts: 3571


'75 MC8 8V71 HT740




Ignore
« Reply #15 on: March 27, 2012, 12:49:54 PM »

The other problem that a low mileage busnut will run into referring to the commercial duty cycle...

the axle seals.

Nobody in the real world can predict how age will come into play on our low mileage and long sitting situations.

And, you want to inspect and do maintenance on the brakes periodically. So a tear down of the wheel end for a variety of preventive maintenance reasons on some cycle would be good, and be earlier than some of the bits and pieces could go.

Also, for those who park the coach for months over the winter season, have some way to block the parking brakes so that the shoes don't rust to the linings. Or, air it up and move it a half wheel turn periodically through the off season.

happy coaching!
buswarrior
Logged

Frozen North, Greater Toronto Area
Busted Knuckle
Hero Member
*****
Offline Offline

Posts: 6447


6 Setras, 2 MCIs, and 1 Dina. Just buses ;D


WWW

Ignore
« Reply #16 on: March 27, 2012, 12:58:14 PM »

Brian trust me on this I can assure you your bus had AT LEAST a million & 400,000 on it when you bought it!

Trust me on this, I know commercial vehicles and can garuntee it had way over 400,000 when you bought it.
Grin  BK  Grin


That is unless it sat on Bobby's lot 5 or 6 yrs before he sold it to you!
Logged

Busted Knuckle aka Bryce Gaston
KY Lakeside Travel's Busted Knuckle Garage
Huntingdon, TN 12 minutes N of I-40 @ exit 108
www.kylakesidetravel.net

Grin Keep SMILING it makes people wonder what yer up to! Grin (at least thats what momma always told me! Grin)
Zeroclearance
Hero Member
*****
Offline Offline

Posts: 523





Ignore
« Reply #17 on: March 27, 2012, 01:27:47 PM »

If it has 1.4 million on it, he should get the repair history on the bearings or "just" replace them.
Logged
Busted Knuckle
Hero Member
*****
Offline Offline

Posts: 6447


6 Setras, 2 MCIs, and 1 Dina. Just buses ;D


WWW

Ignore
« Reply #18 on: March 27, 2012, 01:55:07 PM »

If it has 1.4 million on it, he should get the repair history on the bearings or "just" replace them.

He bought it from Bobby Easter of Easter's Bus Sales ..................

Need I say more? I can assure you there are/were no records. But he knows the history of them since he had C&J do all that when he brought it home.
Grin  BK  Grin
Logged

Busted Knuckle aka Bryce Gaston
KY Lakeside Travel's Busted Knuckle Garage
Huntingdon, TN 12 minutes N of I-40 @ exit 108
www.kylakesidetravel.net

Grin Keep SMILING it makes people wonder what yer up to! Grin (at least thats what momma always told me! Grin)
Zeroclearance
Hero Member
*****
Offline Offline

Posts: 523





Ignore
« Reply #19 on: March 27, 2012, 02:38:33 PM »

Hopefully his Series 60 been inframe'd.   I would be checking the bullnose assy for backlash.  Brian checked mine this past summer at 240K,  when I installed a aux drive gear and updated my Jakes, new updated turbocharger, and radiator.
Logged
dolson
Jr. Member
**
Offline Offline

Posts: 86



WWW

Ignore
« Reply #20 on: March 27, 2012, 02:51:11 PM »

I do not want to get this thread off topic but this seams somewhat relevent.  I have replaced all of my wheel bearings about 4K miles ago.  My front drivers side has started making a clicking sound more noticeable at low speed.  Not sure this is the bearing, but its not a rock in my tire.  Could this indicate too loose or too tight of a adjustment? Does not do it when it is off the ground and adjustment feels good.
Logged

Doug Olson
Langley, OK
1992 MCI 102C3, 6V92, HT740
http://www.dwolson.com
Busted Knuckle
Hero Member
*****
Offline Offline

Posts: 6447


6 Setras, 2 MCIs, and 1 Dina. Just buses ;D


WWW

Ignore
« Reply #21 on: March 27, 2012, 03:10:04 PM »

It could mean that Doug. Or it may just be an improperly torqued aluminum wheel!
Grin  BK  Grin
Logged

Busted Knuckle aka Bryce Gaston
KY Lakeside Travel's Busted Knuckle Garage
Huntingdon, TN 12 minutes N of I-40 @ exit 108
www.kylakesidetravel.net

Grin Keep SMILING it makes people wonder what yer up to! Grin (at least thats what momma always told me! Grin)
buswarrior
Hero Member
*****
Offline Offline

Posts: 3571


'75 MC8 8V71 HT740




Ignore
« Reply #22 on: March 27, 2012, 03:13:07 PM »

The bearing people have fairly exacting standards for bearing installation.

Another one of these things where many in industry keep using and promoting antiquated methods.

Here's a two page industry best practices technical guide from Stemco. The first page is general bearings, the second page is for their Pro-Torq brand.

These were arrived at by the Technical and Maintenance Council of the American Trucking Associations.

http://www.todaystrucking.com/images/740-wheel_bearing_adjustment.pdf

http://www.trucking.org/Federation/Councils/TMC/Pages/default.aspx

happy coaching!
buswarrior
 

Logged

Frozen North, Greater Toronto Area
Ed Hackenbruch
Hero Member
*****
Offline Offline

Posts: 2450




Ignore
« Reply #23 on: March 27, 2012, 06:01:32 PM »

 Like BK says, check your lug nuts. Sounds like one or more is loose to me. Grin
Logged

1968 MCI 5A with 8V71 and Allison MT644 transmission.  Western USA
belfert
Hero Member
*****
Offline Offline

Posts: 5451




Ignore
« Reply #24 on: March 27, 2012, 06:05:11 PM »

That is unless it sat on Bobby's lot 5 or 6 yrs before he sold it to you!

Bobby actually had the bus on his lot for at least three years.  The title to the bus was in the name of Easter bus sales.  The title had been issued to Easter's three years before they handed the title to me.  I suspect the bus had been repossessed based on the condition of brakes and such, plus it appears the operator had gone out of business before I got the bus.  The bus issn't in nearly as bad of condition as some other Dinas I've seen up close with lots of miles which leads me to my mileage estimate which could be way off.

I have no service records from before I got the bus, but I had all of the bearings replaced when I got the bus home.  I changed the transmission fluid/filters and coolant for the second time this past summer.  The rear differential fluid has been replaced at least once since I've had the bus.  Brake shoes and drums were replaced when I first bought the bus.

I really have no idea how often greased bearings should be repacked when in RV service instead of commercial service, but I suspect 100,000 miles is way too long when it will take me over 10 years to accumulate 100,000 miles.
Logged

Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN
TomC
Hero Member
*****
Offline Offline

Posts: 6906





Ignore
« Reply #25 on: March 30, 2012, 08:55:41 AM »

Virtually all trucks have oil bearings on the front axle.  Most trailers do also, although there are permalube grease bearings available for semi trailers now.  The first thing I had done to my bus when I bought it-before bringing it home from Portland, Or was to have the front axle bearings changed to oil.  In over 35,000miles and 18 years, have never had a leak-the bus is parked indoors also.
If I still had greased bearings, I would pull the wheels and repack every year before your big trip of the year.  I personally don't like greased bearings-and neither do the truck manufacturers.  Good Luck, TomC
Logged

Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
edroelle
Sr. Member
****
Offline Offline

Posts: 351


1998 Royale Prevost




Ignore
« Reply #26 on: March 30, 2012, 03:36:05 PM »

I have changed many bearings.  Being a bearing engineer for a number of years, and understanding the reliability of various sources, I always select Timken bearings.   (Although their quality may have changed, that is the best information I have.)

I have gradually changed from oil filled to grease on my bearings.   Our coaches have relatively little use.   Thus, I have gone by Luke's recommendation and rationale.  Seals age and spindles may have some wear.   The grease is more forgiving.     Just my 2 cents.

Ed Roelle
Flint, MI
Logged
Pages: 1 [2]  All   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!