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JS45 Wheel Slipping

Discussion in 'Mechanic and Repair' started by dwh1262, Jul 21, 2009.

  1. dwh1262

    dwh1262 LawnSite Member
    Messages: 6

    I have a John Deere JS45 push mower whose left wheel is slipping and not engaging. Anyone know how to attack this?
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    First thing I'd do is remove the wheel and check the gears, If they look good then check the drive axle gear pin.

    Good Luck
  3. dwh1262

    dwh1262 LawnSite Member
    Messages: 6

    Took wheel off and inner wheel shield had hole in it that allowed mud to come into wheel and build up. Caused slipping that eventually ground down gears on wheel. Why would make the wheel out of plastic? I guess to lighten it, lower production costs and insure having to buy another wheel some day???????
  4. dwh1262

    dwh1262 LawnSite Member
    Messages: 6

    OK have wheel off and bought replacement wheel and shield. Can't however figure out correct way to get gear off and put on new shield and wheel.

    S DIAMOND LawnSite Member
    from South
    Messages: 108

    I’m going on memory here, so bear with me. :)

    If you are referring to the spur gear (large gear), there should be three cap screws. If you are referring to the pinion gear attached to the transaxle, then a snap ring.

    Yes, you will have to remove the smaller gear to get the dirt shield off.

    Observe how that small pinion gear is on the shaft. If It’s like most of the Deere 21” walk behinds, then I believe it goes on a certain way, that is the pinion gears have ramps that allow the key to “catch and release” when you pull the mower backwards (free wheeling) and because the shafts turn in opposite directions, their orientation is important.

    Also, I believe the key is spring loaded, so be careful when you remove it…you have a fifty, fifty chance if you already removed it. Good luck. :walking:
  6. dwh1262

    dwh1262 LawnSite Member
    Messages: 6

    It is the pinion gear. I was able to get the key out of the end, but still can't budge the gear off.
  7. dwh1262

    dwh1262 LawnSite Member
    Messages: 6

    took it to shop and they could not get pinion off. wanted to charge me $400 to put a whole new trans in. I am going to try to get someone to cut the pinion off and order a new one for $5.

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