Cool Hub Maint.

  • birddog
    Mn.
    Posts: 1957
    April 5, 2010 at 2:02 am #860694

    Have they changed the amount of oil they take recently? I don’t think topping them off full is recommended.

    BIRDDOG

    VSRangerMan
    Chippewa Falls,WI
    Posts: 554
    April 5, 2010 at 3:09 am #860716

    The older model Ranger trail cool lube hub trailers were to be filled completely with sae 50 wt oil. Nicely done Jon

    jon_jordan
    St. Paul, Mn
    Posts: 10908
    April 5, 2010 at 1:24 pm #860779

    Yes, full. I have a .pdf file of the cool hubs manual if anyone wants a copy. Just shoot me a PM or e-mail and I’ll send it out. (E-mail address in my profile)

    ….from the manual:

    Quote:

    It is important that the hub cavity is completely filled with oil. Air and oil thermally expand at different rates. Air in the hub cavity will expand at a higher rate than the oil causing the pressure in the hub to increase above 6 psi, possibly leading to seal damage or premature seal wear and water intrusion.

    -J.

    eyeguide
    Prior Lake
    Posts: 274
    April 5, 2010 at 11:10 pm #860973

    Thank you. Made that look do-able for the normal guy!

    ted-merdan
    Posts: 1036
    April 6, 2010 at 5:16 am #861080

    Quote:

    Yes, full. I have a .pdf file of the cool hubs manual if anyone wants a copy. Just shoot me a PM or e-mail and I’ll send it out. (E-mail address in my profile)

    ….from the manual:

    Quote:

    It is important that the hub cavity is completely filled with oil. Air and oil thermally expand at different rates. Air in the hub cavity will expand at a higher rate than the oil causing the pressure in the hub to increase above 6 psi, possibly leading to seal damage or premature seal wear and water intrusion.

    -J.

    Depending on the year of your trailer the hub maintence (amount of oil) varies – best to consult your owners manual if you have or contact Ranger or your dealer for specifics.

    -ted

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