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My mower cant stay straight!!

Discussion in 'Lawn Mowing' started by s-lc, May 5, 2011.

  1. s-lc

    s-lc LawnSite Member
    Messages: 38

    I have a SCAG 48'' belt driven walk behind. i have noticed lately that im fighting with it to keep a straight line. i feel like i am working both wheels to keep it in a line but it is always pulling to the left. i understand that on hills and slopes it will slip and slide, but i am having this problem on flat ground. does anybody have any advice or suggestions? thanks!!
  2. Southern Pride

    Southern Pride LawnSite Bronze Member
    from Memphis
    Messages: 1,382

    Dude just look at your drive belts. One of them is either off the track or worn out and slipping like crazy. That's my first bet. Go check them out and let us know what's what. Can't be doing lawns and having your mower fight ya man. Good news is the belt drive mowers are a lot simpler drive system and that translates into way less $$$. I'm willing to bet it's one of the drive belts, and if so, you really should replace both at the same time.

  3. s-lc

    s-lc LawnSite Member
    Messages: 38

    the thing is its a new mower, i have only done about 10 jobs. i dont think it is worn...i inspected the belts and they appear to be right on the tracks/wheels. should i contact my dealer?
  4. Southern Pride

    Southern Pride LawnSite Bronze Member
    from Memphis
    Messages: 1,382

    Okay, so you're constantly having to squeeze the right hand lever to keep it going straight since you say it pulls hard left?? Check your linkages to the pistol grips (or whatever type handles you have) make sure both sides match up on everything and slowly work your way through every process.

    Also, is it possible that the left tires brakes are slightly locked?? Make sure that's not the case as well. It's a brand new mower??? Hell, it's something simple then. If you don't figure it out tonight, a quick call to your dealer and they'll be able to tell you real quick.
  5. DaveWB

    DaveWB LawnSite Senior Member
    from SE WI
    Messages: 266

    Is the front axle bent from hitting something?
  6. Runner

    Runner LawnSite Fanatic
    Messages: 13,497

    Put a little more air in the left tire and call it a night.
  7. VanAllen's Lawn Service

    VanAllen's Lawn Service LawnSite Member
    Messages: 52

    adjust it out if you can or take it to the dealer
  8. davidcalhoun

    davidcalhoun LawnSite Bronze Member
    Messages: 1,045

    Yep, check the air pressure. You might also put a level across the top of the tires and measure the height. They need to be close.
  9. topsites

    topsites LawnSite Fanatic
    Messages: 21,653

    Brand new > Under Warranty > Don't touch > Run to the Dealer!!!
  10. bc3xx0

    bc3xx0 LawnSite Senior Member
    Messages: 304

    X2... Or use a small tape measure to measure the circumfrence.

    I always adjust the belts and linkage per the manual, then play with air pressure to get it tracking right.

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