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Garden Tractors Discussion Forum

John Deere 110 - Variator Problems

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Rock_Picker(MO)

05-03-2008 20:50:25




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I just re-proved the old addage "If it ain't broke don't fix it". The variable speed control on my 74 two pedal tractor was not working through its entire range, and it would freewheel when going down a slope, so I tried to adjust it according to the procedure in the Service Manual. Now the clutch pedal jumps up and down and the variator is almost non functional. I tried unsuccessfully to adjust it several times. I can't really tell if the belts are that badly worn. All pulley bearings appear OK. Before I tried to adjust it, the clutch did not jump up and down. If I had the industry standard numbers for the primary and secondary belts, I could compare new ones to the ones now on the tractor.....Comments, experiences, and suggestions would be appreciated..... ..... .RP

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NOS88

05-04-2008 08:28:05




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 Re: John Deere 110 - Variator Problems in reply to Rock_Picker(MO), 05-03-2008 20:50:25  
Sounds like the center sheave is froze up. Start up the mower and spray some penetrating oil on variator and work lever back and forth. Should free it up. Then go back through and re-adjust. If in doubt I would replace the belts also.



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usetabesteve

05-04-2008 09:27:01




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 Re: John Deere 110 - Variator Problems in reply to NOS88, 05-04-2008 08:28:05  
There's a problem with your approach here. It's not safe to work on things like this when they are running. John Deere might not be using an industry standard belt for reasons known only to John Deere engineers who retired long ago. The correct John Deere belts aren't that expensive, they work better, and they last longer.

The adjustment process is like this. Before you start the adjustment process, though, fasten the clutch pedal down with a C clamp and hold the secondary belt tensioner up with a deep socket through the hole in the frame by the right rear wheel. That gives you slack so you can check the variator. That middle sheave should turn easily and slide smoothly with no notchiness or tight spots. The shaft it slides on should be smooth and shiny. Put a very small amount of grease on the center shaft and then release the belt tensioner and clutch.

Move the variator lever to the fifth notch from the back. Take the spark plug wire off and crank until the clutch pedal comes all the way up.

Pop the front access cover off the bottom right of the console. Using a socket wrench, loosen the bolt head inside and then push down hard while tightening that bolt head.

Put the spark plug wire back on, start it up, and try it out.

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Rock_Picker(MO)

05-04-2008 18:18:30




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 Re: John Deere 110 - Variator Problems in reply to usetabesteve, 05-04-2008 09:27:01  
PROBLEM SOLVED. Yep, you guys were right. I removed the belts, cleaned and lubricated (lightly with grease) the center sheave, and everything works great. Thanks a bunch..... ..... ..RP



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