HELP

[JJ MARSHALL 0]

I've got a 910 a/c that is breaking belts that pull the deck. I broke one early this year in the spring. That belt had a lot of hours on it. I did not use it again until here in SEPT. Before I started using it this time I had removed the deck and replaced the bearings on one of the spindles I had done the other two back in the spring. This time it broke a new belt within about 2 hours. I checked all the pulleys before I put the new belt on. They were not rough are noises an appear to be straight, ANY IDEARS ? JJ

[Simplicity314 0]

Make sure they are on the correct side of the belt guides. They may look okay and spin but they rub and break. It happened to me. I kept smelling rubber but the blades were turning fine, it was cutting, etc., Just rubbing on a guide. Drove me nuts till I finally found it--looked at it 3 times and couldn't figure it out.

[D-17_Dave 12]

I'd go back to the source. Look at the idlers and the drive pulley for distortion or wear from possible damage from the first belt break. Also it's best to check the bearings in the idlers and spindles when it's hot. Once they cool they can return to a free spinning state.

[UCD 14]

Are they OEM Simplicity belts?

[JJ MARSHALL 0]

quote:

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Originally posted by UCD
Are they OEM Simplicity belts?

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YES

[Steve_Wyrick 0]

Check the front axle assy and make sure that there is no play. Front to back movement. If there is you need to get it out. Should solve your problem. It's sounds crazy but thats your problem.

[Doll 0]

JJ, I'm very inclined to agree with Steve. Not real sure on the 910 but at least some of the BGB tractors with the cone clutch had a stop on the idler pulley assy. A finger of steel that goes back under the frame and stops the pulley mounts from going to far back. If your close to bottoming out there you will fry belts one right after another. Worn pin holes in both the deck mounts and the recievers will add up and so will slack in the support for the front axle. You can run a 1 inch shorter belt but your only asking for more trouble in the long run if you do.

[SmilinSam 3,932]

Another factor is belt tension. The 900 series should have a bracket on the tension pulley that sits in the red and green bars on the bracket on the frame. Should be sitting in the green area when the belt is tensioned properly. Over tensioning can take out belts and bearings...

[UCD 14]

JJ Are you talking about the PTO belt or the deck arbor belt?

[Al 6]

Hi, 7100 and 900s have 2 holed for the front rear idler pulley, be sure it is in the mower and not the snowblower hole. These decks are prone to break belts more often when mowing in the highest settings. Mowing with the deck lifted can cause failures. As Sam said check the tension settings per the red and green marks on the pto arm. Biggest thing BUY OEM belts, they are cheaper in the long run. What does the failed belt failure look like? Al Eden

[JJ MARSHALL 0]

quote:

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Originally posted by UCD
JJ Are you talking about the PTO belt or the deck arbor belt?

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i't the pto belt. JJ