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Day three for the 1220 I purchased this week and I am wondering if the tractor has a transmission issue?

When I brought the tractor home I topped off the transmission with the recommended oil. It was a little low - but didn't take the much to fill it. I drove the tractor the day I bought it an every thing seemed fine - shifted into all gears in both high and low with no issues.

I lent the tractor to my neighbor yesterday so he could haul some wood with it. Today when driving the tractor I found the tractor to be occasionally surging or bucking. This happened in different gears, The engine was running well and not the cause from what I could tell. My neighbor said he experienced the same thing as well.

Hopefully I didn't get a lemon! Any advice/input as to what might be going on would be appreciated.

I searched the forum and found some parts catalogues, for my 1220 as well as publications on the transmission, which are great resources. I am going to attempt to adjust the axle end play as suggested.
 

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Is the engine surging in RPM, or is it smooth?

If engine surges, it related to the engine, or related componets. If the engine is smooth, id be looking at clutch parts back.

We need more info to help you out!
 
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Actually I am not sure if the tractor has a 6 speed transmission - it might actually be considered a 3 speed. It has 3 speeds with a high/low range.
That would make it a 6 speed and are labeled as such. Check your belts from the engine to the drive shaft. Like Bolens 1000 said, adjust axle end play. Good luck.
 
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Several possibilities, but hopefully nothing major.

1) Free-wheeling pin not engaged.

2) Rear-axle end play needing adjustment.

3) Splines on transmission input flange coupling stripped.

4) Clutch slipping - adjustment may or may not correct problem.

5) Bonded rubber coupling on driveshaft failed.
 
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