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Greasing Greasable Spindles

Discussion in 'Lawn Mowing' started by RobH, Mar 24, 2006.

  1. RobH

    RobH LawnSite Member
    Messages: 142

    I was always taught that when you grease a spindle that you grease it until you see grease popping out either at the top or bottom of the spindle.

    Is this correct? Will this do any damage to the seal since you are allowing grease to burst out of the spindle.

    If you don't grease it until grease pops out, how would you know if you added enough grease to it?

    I just wanted to get some others thoughts on the issue.

    Messages: 5

    That is the way it was taught to me also.never had any trouble with seals or spindles so far.I think you should be ok
  3. chriscraft

    chriscraft LawnSite Senior Member
    Messages: 390

    Grease it til she oozes
  4. old dog 80

    old dog 80 LawnSite Member
    Messages: 204

    Read the instructions or talk to mechanic at dealer.Or go online and contact
    the manufacturer.Too much grease oozing out can attract a lot of dirt and blow
    seals! Be careful
  5. MMLawn

    MMLawn LawnSite Gold Member
    Messages: 3,569

    NO. It you grease until it pops out then it is too late you have broke the seal.

    You grease by the feel of pressure on the grease gun.
  6. DLCS

    DLCS LawnSite Platinum Member
    Messages: 4,386

    Also, you allow water to enter the bearings when you blow open the seal. If you do this repeatedly you also loose grease, meaning you have to grease more. A few squirts is all you need unless you are loosing grease through a seal.
  7. mbricker

    mbricker LawnSite Senior Member
    Messages: 505

    I have never run across a seal on a mower spindle that was really a sealed, tight closure, like on some automotive suspension components, etc. Basically, they all seem to ooze a little grease out somewhere. If there is a place grease can ooze out, that is also enough opening for dirt/grit/moisture to get IN.

    IMHO, if you fill the spindle up with grease and it starts oozing out, what you are doing is displacing any dirt or moisture from inside the spindle, back out through the opening it came in. Do this regularly, and you will always be pushing the dirt back out before it has a chance to work its way to the bearings.

    I have had some decent and some cheap equipment--the seals don't seem to be different on any of the equipment I've owned. The longest running piece of equipment I've had was a Grasshopper front mount that I sold with about 1600 hours on it. None of the spindles had ever been torn down. However, the bagger blower shaft bearings were not greaseable. I bet I replaced those bearings at least 4 times.

    So for what it's worth, I say grease 'em til you see grease.
  8. Hizoot

    Hizoot LawnSite Member
    Messages: 15

    And you will be wrong. I am not in the lawn care business. I am in the large tonnage HVAC business and deal with bearings all the time....even been to tech training by Fafnir, Chicago Bearing etc. The old addage, grease'm till they ooze was back in the '57 chevy days guys/ back before they had any type of seal between the races. If you bust open the seal with grease, you've destroyed the first defense against dirt. Plus, you now have to grease alot more often to keep pushing the dirt out.
  9. geogunn

    geogunn LawnSite Gold Member
    from TN
    Messages: 3,010

    rob--I have greasable spindle bearings on my LESCO.

    there is a weep hole for excess grease therefore it is impossible to over grease them.

    I am not a heat and air repairman but I give them about 2 lever squirts of grease about every 8 hours of use and it seems to be working just fine.

    to date I have never had a bearing failure over several thousand hours of use.

    GEO :)
  10. Flex-Deck

    Flex-Deck LawnSite Silver Member
    Messages: 2,845

    I have greasables on the JD decks, and I give them 5 pumps of raytac (wonderful stuff) every 25 hrs. I do NOT force a seal - Have 2600 hrs on one 60 inch deck, and the bearings are just fine. The zerk is at the top, and the grease works its way down the system to the bottom when running and the grease warms up.

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