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  1. #1

    Default Gravely Promaster 44Z blade replacement question.

    I own a 2006 Gravely Promaster 44Z model # 991023, and was thinking about replacing my mulching blades myself this time around.

    I can not find any blade replacement instructions on the Ariens/Gravely website. I found a place to download the Owners manual and Parts manual, (which do not have blade replacement instructions) but was unable to find a download for a Service manual.

    I am wondering from under the mower if you take the blade bolt holding the blade is unscrewed in the normal counter-clockwise way or down in reverse clockwise way?

    Also, does all maker/model mower blades bolts come off in this direction?

  2. #2
    Gold Member
    Join Date
    Nov 2012
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    254
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    Newark, de
    Tractor
    International 424

    Default Re: Gravely Promaster 44Z blade replacement question.

    They are standard thread. counter clockwise-- lefty loosey, righty tighty

  3. #3

    Default Re: Gravely Promaster 44Z blade replacement question.

    Thanks

  4. #4
    Silver Member
    Join Date
    Oct 2010
    Posts
    230
    Location
    Dallas, TX
    Tractor
    Gravely

    Default Re: Gravely Promaster 44Z blade replacement question.

    Quote Originally Posted by sox3 View Post
    lefty loosey, righty tighty
    The problem with the saying is that it is only true when viewed from the top half of the nut. When viewed from the bottom half, it is backwards. When viewed from the side then it is up-down. Just remember the CW rotation tightens and CCW loosens a RH threaded fastener and it won't matter if you are viewing the bottom, top or side of a nut.

  5. #5
    New Member
    Join Date
    Jun 2013
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    8
    Location
    Roanoke Rapids NC
    Tractor
    NA

    Default Re: Gravely Promaster 44Z blade replacement question.

    I have a PM44Z myself. The blades are pretty easy to remove but a impact driver makes it much simpler. Use the impact wrench to remove the bolts but when replacing the bolts, start them by hand. Finding blades is sometimes a challenge for me but there is a Gravely dealer about one hour from me if all else fails. I once found blades at Tractor Supply. While you have the blades off, scrape the bottom of the deck clean.

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