Woods Mower Belt Twisting At PTO

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ctltmp
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Woods Mower Belt Twisting At PTO

Postby ctltmp » Sun Apr 05, 2020 1:18 pm

While I have some time......when I got this tractor I was told that the belt for the mower was too small and that was the reason it kept twisting at the PTO pulley. The mower is on a 47 Cub.

1st question does that seem logical? Seems to me like that shouldn't be a reason to twist there.

2nd question if that is the reason would anyone know the proper length for the belt?

Thanks in advance!

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Re: Woods Mower Belt Twisting At PTO

Postby Eugene » Sun Apr 05, 2020 1:43 pm

You are at or very near the top of the idler pulleys adjusting slots. Your belt could be several inches longer.

Remove the belt and measure the belt. Measure the location of the bolt in one of the slots. Move the bolt down to the center of the slot. Measure again. Double the distance you moved the bolt down and add that to the current belt length. That should get you close to the desired belt length.

While you are there, check the idler pulleys, PTO pulley, and deck pulleys.

Top photo. One edge of the belt appears to be frayed. Time to purchase a new belt any way.
I have an excuse. CRS.

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Re: Woods Mower Belt Twisting At PTO

Postby Jim Becker » Sun Apr 05, 2020 1:45 pm

Was it installed as it is in the picture or did it turn over by itself? The belt should have 1/4 twist between the PTO pulley and each idler so the bottom of the V of the belt ends up in the bottom of the groove of each pulley.

The proper belt length has been posted in the past. Search for something like "woods belt length" and you should find it.

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Re: Woods Mower Belt Twisting At PTO

Postby SONNY » Sun Apr 05, 2020 1:55 pm

Looks like woods number is 1469 for these

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Re: Woods Mower Belt Twisting At PTO

Postby ctltmp » Sun Apr 05, 2020 3:27 pm

Jim Becker wrote:Was it installed as it is in the picture or did it turn over by itself? The belt should have 1/4 twist between the PTO pulley and each idler so the bottom of the V of the belt ends up in the bottom of the groove of each pulley.

The proper belt length has been posted in the past. Search for something like "woods belt length" and you should find it.



Jim, was like that when I got it. I haven't done anything to it or engaged the PTO since I got it.
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Re: Woods Mower Belt Twisting At PTO

Postby Bob McCarty » Sun Apr 05, 2020 3:56 pm

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we need to think differently."
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Re: Woods Mower Belt Twisting At PTO

Postby Jim Becker » Sun Apr 05, 2020 4:18 pm

In that case, the first thing I would do is reinstall it properly then engage it to see what happens.

For one thing, it will magically grow in length when it is in the groove where it belongs.

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Re: Woods Mower Belt Twisting At PTO

Postby tmays » Sun Apr 05, 2020 7:53 pm

With it so high in the idler slots, I would expect the belt to start jumping off the front Pulley when you run it
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Re: Woods Mower Belt Twisting At PTO

Postby ctltmp » Mon Apr 06, 2020 3:10 pm

Thanks for all the input. I'll get a measurement to be sure, according to Bob's post link the length should be 133".
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Re: Woods Mower Belt Twisting At PTO

Postby Rick Spivey » Mon Apr 06, 2020 4:39 pm

Ideally, the mule drive pulleys would be able to be set where the belt was essentially horizontal as they go to the blade spindle, and the pulley on the PTO would make the belt vertical between the mule drive and PTO. The two idlers on the mule drive should be equal in height. Once a belt has twisted like that, it wants to do it over and over, time for a new belt.
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Re: Woods Mower Belt Twisting At PTO

Postby Scrivet » Thu Apr 09, 2020 7:45 pm

ctltmp wrote:Thanks for all the input. I'll get a measurement to be sure, according to Bob's post link the length should be 133".

My two cents on belts. First, make sure you understand how they are being measured. Some manufacturers measure inside length and most measure outside length. The belt number is very seldom the length. The 133" belt you mention , is that possibly a B133 which is most likely 136" outside length? That is the correct length, according to the Woods manual, to replace part number Woods 1469 which is for use on 42C-1 through 42C-4 mowers. Since yours is a 42C-6 it takes Woods part number 27652. Which is somewhere between 140-7/8 and 141-7/8 overall length. I don't have a C-6 and haven't chased it down, just going by what a few websites list as the conversion belt for a 27652. So most likely a B138 or B139.

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Re: Woods Mower Belt Twisting At PTO

Postby ntrenn » Sun Apr 12, 2020 4:30 pm

Also, normal position for the pto pulley has the hub flush with the pto shaft. It looks like you have an A sized belt, not a B. I got lucky earlier this spring and got a B210 for the woods 59 delivered for under $12.00. Search by the B number to open up the field of possibilities.


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