Forum Discussion

et2's avatar
et2
Explorer
Jul 26, 2015

Wheel hub oil

So how often do you guys & gals change your wheel hub oil oil? Frieghtliner says every two years. Cummins Bridgeway repair facility said, unless they're leaking don't worry about it. Not the answer I thought was correct.

What do you people do?

8 Replies

  • While you are at it, make sure you get your relative bearings greased too
  • Ivylog wrote:
    Dang I'm 15 years overdue on changing the oil in the front axle on my dump truck.
    LOL ... thats exactly why I converted to wet hubs. They're virtually maintenance free. I can see the sight glass through the front hubs ... making it easy to notice a drop in oil level, or change in color. All those million mile plus, OTR trucks can't be wrong.
  • Ivylog's avatar
    Ivylog
    Explorer III
    Dang I'm 15 years overdue on changing the oil in the front axle on my dump truck.
  • A VERY quick change is to use a cheap transmission pump (guess they still sell them-- mine is 25years old).

    Suck out what you can and refill. Do it again next time it is convenient. Total time, both sides is under 5 minutes. And, one quart of synthetic gear lube (proper viscosity for your axle and climate) will last many many changes.
  • Well,
    The way I look at it, it's CHEAP. I mean, what's it take, a few ounces? Besides, the way I do it, I remove the wheel/tire, then I remove the brake drum. That way, I get to inspect all the innards of the brakes etc. It's really not all that hard.

    I was just doing a prefight check on the coach, getting ready for few hundred mile trip and, changed the engine oil and filter. Changed the fuel filter, lubed the chassis and all components that needed it. While the coach was in the air, I checked the front wheel bearings for play by grabbing the top and bottom of the front tire(s) and push-pulling those, I could feel play in the right front wheel. The left front was fine.

    So, off came the tire and wheel and the drum. I removed the side/knurled plug and, let what would drain, drain. I then removed the six bolts, holding the hub cover on. I then tightened the bearing and, re-installed everything. I refilled the hub with some new 85W-140 gear oil. The entire process took me about an hour, start to finish.

    While Freightliner may want you to maintenance your chassis a bit more than some of you would like to, and Cummins or, any other entity might schedule differently, I simply take into account, the time, the miles and what kind of driving was done. I then maintenance it accordingly. And that maintenance never goes over a year between each time.
    Scott
  • Cunmmins is correct, if you did everything Freightliner wanted your annual maintenance cost would be over $3000 and the coach would not perform any differently.
  • Cummins is far more correct than Freightliner.

    Here's the maintenance schedule for my wet hubs as recommended by Stemco, the maker. I doubt I'll ever see 100,000 miles, but I might.

    Stemco Maintenance Schedule