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B110 center pto problems


Chris727

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Is anything wrong with this picture? [img]http://www.simpletractors.com/club2/attach/Chris727/b110centerpto.JPG[/img] The idler pulley gets way too close to the PTO pulley on the BGB and the rod guide assy appears to have been "hacked", I looked at a B-10, and a B-12 that also looked hacked and the parts manual showed a much different rod guide assy. Did dealers do this? I just replaced the pto belt with a 35 inch belt which is what I cross refferenced from a 2110, did have a 36 inch belt on it when I got it. Could it be that the prior owner had too long of a belt from the lower pto to the mower deck allowing the lower pto to be back to far causing the 35 inch belt to loosen up and not engage util the idler rubs the BGB/PTO pulley? This is confusing! Thanks in advance. -Chris
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Chris The Belt book says B-110 P.T.O. Belt# 121078 35.1" Type HA Drive Belt# 154273 Length 42.3" Type HL Generator 1607323 Length 37.5" Type 3/8
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I have a B-10 transmission on my things I have to sell this year and on it is still the PTO assembly. I'll try to remember to take a picture of it for you. You're right something looks screwy.
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Bob, I agree that it looks weird. I've had problems with my idler hitting the lower pulley when the belt was worn out (whole PTO was worn out) but never hitting the top pulley. I wonder if the arm that the idler is mounted on a little too long -- if it isn't stock... that might make it hit.
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Kent I have the same problem on my 3112, but only on the disengaged side. If I flip the lever quick I hear metal. One of lifes mysteries, but snapped over to mow it's a go getter. When I cut the grass it's generally my 7010 but now that the Sunstar is almost ready to roll out I might do grass with it. I generally just use the 3112 for rototilling, what a killer to the soil.
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Im no pro, but on my landlord I use a 34" belt to drive the PTO. It seems like a 35 wants to jump off when I disengage, and a 33 keeps you from being able to shut the thing off! I would try a shorter belt before I yanked out the welding rods and torches. Just re-adjust your engaging arm setting. The shorter belt will probably help keep the idler pulley away from your other pulleys. Let me know if that works...
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Wasn't suggesting that he shorten the arm -- only trying to diagnose why it looks weird, if it has been "hacked" as described. As far as that goes, he could probably just drill another bolt hole further down the arm and mount the idler there -- if a shorter belt doesn't work.
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Bob, your idler pulley looks like it might be bigger than mine, maybe someone put the wrong one on mine and I need a bigger one? I'll try the 34 inch belt and see how that works. Thanks. -Chris
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Chris, do you have a larger idler pulley that you could try with the 35" belt? The idler on my Big Ten PTO looks like the size of the one Bob shows.
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I called a simplicity dealer that told me the belt with the half twist that goes to the deck is supposed to be a 44 inch belt. The one that was on the tractor was a 49." So I went to the local lawnmowerman for a 44" belt. Well, the one I bought from him was a 5/8 because thats what was on it before. After putting it on the tractor it took care of my idler problem but the blades wouldn't disengage and I had to put the 1/2 twist belt to the deck through through the outermost pulley because it was too tight to get it around the bigger pulley even with the tension released, so I called the dealer again. They told me to get a 1/2 inch belt and I figure that should make some more slack to fit around the bigger pulley. Hopefully the idler will still be far enough away and hopefully the blades will disengage. Too bad the prior owner couldn't have used the right belt in the 1st place! I'll let you all know how the 1/2" 44inch belt works. Thanks. -Chris
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With the correct belts a 35 inch from the BGB to the lower pto and a 44 inch from the deck to the pto it works great. The blades turn on and off just fine and it cuts real good too! Thanks for all the suggestions. -Chris
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