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  1. 03-15-2013, 09:07 PM #1
    Henri88
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    Default Seal, which way should it go

    I'm replacing the output seal on the button of my Howse 4' bush cutter. It was leaking and since I just bought it use, I'm questioning if it was install correctly. I'm sure it was at the factory, but it could have been change afterward. Usually to my recollection, when you install a seal, the face of the seal is on the outside, but in this case it is facing inside the gearbox. Anyway, I took some pictures of the way it is set-up but I'm really not sure this is the right way. Please take a look and give me your feedback. The way it is set-up, their is a space between the endcap and the seal. This space was fill with grass and whatever manage to get in there. Suspect that this could have been the reason for the leak. Edit: Forgot to mention, this is a double lip seal.

    Seal, which way should it go-img_0294.jpg Seal, which way should it go-img_0295.jpg Seal, which way should it go-img_0296.jpg Seal, which way should it go-img_0297.jpg

    Seal, which way should it go-img_0299.jpg Seal, which way should it go-img_0300.jpg Seal, which way should it go-img_0301.jpg Seal, which way should it go-img_0302.jpg
    Last edited by Henri88; 03-15-2013 at 11:14 PM.
    How could you be told I was french?

    4' Howse rotary cutter, mid mount lawnmower, f.e.loader, pallet forks, tiller, cultivator, middle buster, snowblower, grass-sweeper, quick hitch, trailer hitch, jodale-perry cab
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  3. 03-15-2013, 09:13 PM #2
    mikefamig
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    Default Re: Seal, which way should it go

    Henri:

    The side with the lettering is the dry side.

    Mike.
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  4. 03-15-2013, 09:16 PM #3
    whistlepig
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    Default Re: Seal, which way should it go

    Are you asking which direction the lip of the seal should go?
    ........Shoot this thang! Have mercy this thang is killin' me. Just shoot up here amongst us. One of us has got to have some relief..............
    jerry clowers-a coon huntin story.
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  5. 03-15-2013, 09:20 PM #4
    Henri88
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    Default Re: Seal, which way should it go

    Quote Originally Posted by mikefamig View Post
    Henri:

    The side with the lettering is the dry side.

    Mike.
    Mike that's what I thought also. The way it is set-up right now, the lettering would be facing the bearing.
    How could you be told I was french?

    4' Howse rotary cutter, mid mount lawnmower, f.e.loader, pallet forks, tiller, cultivator, middle buster, snowblower, grass-sweeper, quick hitch, trailer hitch, jodale-perry cab
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  6. 03-15-2013, 09:26 PM #5
    Henri88
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    Default Re: Seal, which way should it go

    Quote Originally Posted by whistlepig View Post
    Are you asking which direction the lip of the seal should go?
    Yes! Does it look right to you?
    How could you be told I was french?

    4' Howse rotary cutter, mid mount lawnmower, f.e.loader, pallet forks, tiller, cultivator, middle buster, snowblower, grass-sweeper, quick hitch, trailer hitch, jodale-perry cab
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  7. 03-15-2013, 09:28 PM #6
    whistlepig
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    Default Re: Seal, which way should it go

    As Mike said. Lip pointing out for grease. Lip pointing in for oil.
    ........Shoot this thang! Have mercy this thang is killin' me. Just shoot up here amongst us. One of us has got to have some relief..............
    jerry clowers-a coon huntin story.
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  8. 03-15-2013, 10:13 PM #7
    BRBurns
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    Default

    That looks like it could be backwards,but it hard to tell for sure from the pictures. Basically, you want it so if pressure is to increase inside the gear box it pushes the seal towards the shaft.
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  9. 03-15-2013, 10:18 PM #8
    whistlepig
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    Default Re: Seal, which way should it go

    Most oil applications are not pressurized. Lip goes in. Most grease applications are pressurized. Lip goes out. Lip in on a grease application and a squirt or two too much with a pressure grease gun will blow the seal.
    ........Shoot this thang! Have mercy this thang is killin' me. Just shoot up here amongst us. One of us has got to have some relief..............
    jerry clowers-a coon huntin story.
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  10. 03-15-2013, 10:41 PM #9
    Henri88
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    Default Re: Seal, which way should it go

    Quote Originally Posted by BRBurns View Post
    That looks like it could be backwards,but it hard to tell for sure from the pictures. Basically, you want it so if pressure is to increase inside the gear box it pushes the seal towards the shaft.
    In that case, it would be install correctly. Also I forgot to mention but this is a double lip seal. On this pic you can see the small lip turn outside so with any kind of pressure the lip would push again the shaft.

    Seal, which way should it go-img_0299.jpg
    Last edited by Henri88; 03-15-2013 at 11:45 PM.
    How could you be told I was french?

    4' Howse rotary cutter, mid mount lawnmower, f.e.loader, pallet forks, tiller, cultivator, middle buster, snowblower, grass-sweeper, quick hitch, trailer hitch, jodale-perry cab
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  11. 03-16-2013, 06:58 AM #10
    mikefamig
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    Default Re: Seal, which way should it go

    Quote Originally Posted by whistlepig View Post
    Most oil applications are not pressurized. Lip goes in. Most grease applications are pressurized. Lip goes out. Lip in on a grease application and a squirt or two too much with a pressure grease gun will blow the seal.
    That makes sense, you learn something new every day.
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