Question about Mtd LAWN MOWER PART # 753-0698 KIT-DECK 42" NEW S

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MTD Lawn Tractor problem

I have replaced idler pulley and belts with original factory belts on my MTD lawn mower model 13am675g062.It looks as if the front drive belt is not turning at the variable speed pulley, all belts are new, i think the belt from the factory is to long. It will move but as you shift into higher gears it creeps to a halt, any ideas?

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  • maximus1968 Jun 28, 2009

    I have done this and have got the correct belts per the manual they are belts 954-0370,954-0280A, and 954-0371A. I really think the 954-0280A belt coming from the motor is to big, I have also adjusted the linkage for the shifting per the manual. Somethings not right,im gonna try another belt thats smaller

  • maximus1968 Jun 28, 2009

    I have oiled it with WD-40 and it moves freely, I can see it pivot up and down, the front belt is just not turning inside the inspection cover above the vari speed pulley when you look down at it with the motor running and in 1st gear, 2nd gear etc.....

  • maximus1968 Jun 29, 2009

    Yes i can see all of that and have done as you stated, the back belt is showing alot of slop as its running and transfers to the higher gears....hmmmm

  • maximus1968 Jun 29, 2009

    It is hooked up, how much tension should there be? Should it be pulled in all the way?It acts like it is flapping on the left side of the belt looking down at it.Any ideas? Weak spring?

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The front belt should be a 954-0280A, rear 954-0370. When you go to higher gears, the front belt should be getting tighter as the vari-speed pulley is moving further back. Remove the shift plate, put the transmission in neutral. Start the engine, put speed selector in highest gear and slowly let out on the clutch. You should be able to see what the problem is. It will do everything the same as if were in gear, except move. Make sure you have the correct belts.

Posted on Jun 28, 2009

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  • Dwain Pippen Jun 28, 2009

    You can try onother belt, but I can tell you it;s not going to work. There is a problem with what you have there. I suspect it your vari-speed pully. Can you see, for sure, the center of the pulley moving up and down and the whole thing pivoting back and forth as you let off the clutch and push it down?

  • Dwain Pippen Jun 29, 2009

    Ok.. Did you remove the bolt on the engine pulley and pull it down to get the belt on it? Then you would have to have taken the clip off the top of the vari-speed pulley and pull it up to get the new belt on the lower part of the pulley. You then would have taken out he two bolts that hold the gear shift support bracket to the side and slipped the rear belt over the shift lever and put the belt on the transmission pulley, idler pulley and vari-speed pulley. So, you did all that, correct. Now you say you can see the center of the v/s pulley move up and down as you push down and let up the clutch pedal. You can also see the whole v/s pully assy move from front to rear as you push down and release the clutch pedal?

  • Dwain Pippen Jun 29, 2009

    The rear belt never has slop as the idler is spring loaded and always keeps tension on it. Maybe the spring that is anchored underneath above the right rear axle is unhooked.

  • Dwain Pippen Jun 29, 2009

    Not sure what you're saying there, but the rear belt should be BETWEEN the idler and the trans pulley. The backside of the belt is against the idler and the 'v' side is on the trans pulley. Do you have the belt over the idler pulley. If you do, there is no tension being put on the rear belt.

  • Dwain Pippen Jun 29, 2009

    Enlarge this picture and look at the rear belt set-up.

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I got the same mower, and I had the same problem when I replaced the rear drive belt today. It's probably a good idea to replace both drive belts at the same time, because of the variable diameter pulleys, if one belt is worn thinner than the other, this could change the intended ratios.

However, I have noticed after running the mower around the yard for 30 minutes, the higher gears are working better. The variable speed pulley is a clever design, it can't hurt to oil the bearings, but you probably don't want to WD40 the actual belts.

Posted on Jun 04, 2010

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Try going to partstree.com

Posted on Jul 13, 2010

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Gas in the oil pan

Posted on Apr 28, 2010

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