exmark question

Discussion in 'Lawn Mowing' started by postman, Aug 26, 2007.

  1. postman

    postman LawnSite Member
    Messages: 51

    i got a exmark lazer-z hp 52 deck 500 hrs on it the other day i had bolt to break on idle arm pulley that round housing were the bolt goes all the way under your deck bolt like maybe a 6 -inch bolt the housing also has a grease fitting on it . I put a new bolt in it it lasted about a week . i think housing and idle arm is all one piece . what could be my problem . i don't really know a lot about mechancial things thanks for your help.:usflag:
  2. joshco84

    joshco84 LawnSite Senior Member
    Messages: 411

    sounds like you didnt grease it enough and the inside of the idler mount is rough and eating the bolts in two. you will probably have to get a new idler arm would be my guess.
  3. ed2hess

    ed2hess LawnSite Fanatic
    Messages: 14,567

    Maybe move up to hardened bolt?
  4. joshco84

    joshco84 LawnSite Senior Member
    Messages: 411

    that might work too but if the inside is wore then the pulley will be at an angle compared to the belt and it will wear out the bearings in the pully.
  5. Stillwater

    Stillwater LawnSite Platinum Member
    Messages: 4,889

    Use Grade 8 Steel ! OR replace the part with a OEM replacement in my opinion the mower is to young to be hacking repairs.

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