Over-Greasing Scag Spindles

Discussion in 'Mechanic and Repair' started by PM Baker, Feb 8, 2005.

  1. PM Baker

    PM Baker LawnSite Member
    Posts: 55

    I was concerned about having dislodged the bearing seals on my spindles by over-greasing my Scag Cougar spindles. I wrote to Scag, and they said over-greasing damage to the bearing seal is unlikely, because Scag spindles have a pressure relief fitting precisely to protect against over-greasing damage.
    Here is the correspondence:

    Reply from Scag

    Thank you for contacting us with your question.

    Your thoughts in regards to the purpose and operation of the grease relief fittings on your spindles is absolutely correct. They serve as a pressure relief to prevent damage to the bearing seals due to over-greasing.

    I doubt very much that you have anything to be concerned with.

    Thank you again for your question. I hope that this information will be helpful to you.

    Rob McCoy
    Assistant Technical Service Manager
    Scag Power Equipment

    -----Original Message-----
    From: Peter Vega
    Sent: Sat 2/5/2005 5:05 PM
    To: Rohloff, Patrick
    Subject: SCAGCougar spindles

    I see in the Scag Cougar Owners Manual-Parts List, page 40, that the
    spindles have a grease relief fitting. I assume that the manner of greasing
    the spindles would be to grease till a bit comes out of the relief fitting
    (I assume this because I just greased it for the first time and the area
    around the relief fitting is where I see the grease come out.

    How's that relief fitting work? Does the grease come out of the center of
    the fitting, like a one way valve?

    Will this relief fitting save one from over-greasing and thereby dislodging
    the bearing seals?

    I ask this because I didn't see in time, the grease ooze out on the first
    spindle I greased, and I over greased it till I discovered a glob the size
    of a golf ball by the relief fitting side that was hidden to my view by the
    LH belt cover. I hope I didn't screw up the bearing seals. What do you
  2. jimslawns

    jimslawns LawnSite Senior Member
    Posts: 283

    If it has too much gease it is designed to puke it out, Take off your belt occasionally and check the spindles. You generally will not damage anything with grease, however the lack of grease is another story.
  3. ed2hess

    ed2hess LawnSite Fanatic
    Posts: 13,207

    On my Cougar it is all the sealed bearing that are going out on the belt idlers. They use a cheap bearings. Watch the gear boxes the seals go on them...good idea to replace the seals.
  4. B&B Lndscpng & Lwn Srvc

    B&B Lndscpng & Lwn Srvc LawnSite Member
    Posts: 112

    I always grease my scags till i see some grease oozing out of the relief. That's what they are there for.
  5. PM Baker

    PM Baker LawnSite Member
    Posts: 55

    At how many hours did you experience the problems?
  6. HOMER

    HOMER LawnSite Gold Member
    Posts: 3,183

    I've got 1600 hrs on a 48" Scag and have never seen the spindle bearings. I've had grease all over the place and then have run them for months and not greased them :blush: ...............either way they hang in there. I'd say your fine.

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