John Deere 30" Mechanical Tiller HELP!

4240 Views 4 Replies 2 Participants Last post by Pete H, Apr 14, 2020

Pete H

Discussion Starter · Apr 9, 2020

I am trying get guidance on the belt installation. When replacing the belt #2 (rear) the belt twists and burns. in reading the manual there is supposed to be a "half twist" in front and back. I have tried to adjust the tension however it does not seem to help at all. Could someone please give me some guidance here????

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scottp1951

· #2 · Apr 11, 2020

Well, my first question is are you using a John Deere belt? An aftermarket v-belt is not going to work on that tiller. I'm going to send you a link and you can find belt installation starting on page 17.
79eb392e-fbdc-a2f4-a540-03a2a48534c9.pdf

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Pete H

Discussion Starter · #3 · Apr 13, 2020

scottp1951 said:
Well, my first question is are you using a John Deere belt? An aftermarket v-belt is not going to work on that tiller. I'm going to send you a link and you can find belt installation starting on page 17.
79eb392e-fbdc-a2f4-a540-03a2a48534c9.pdf

Thanks for the info. I have to manual, but those instructions are pretty vague. I ended up putting the old belt back on. The new belt was purchased at Deere dealer. I believe my tensioner could be the problem. I can't adjust to the 3mm setting. I may have a bad spring. Problem is, even the dealerships aren't too familiar with these units. Thanks for the help!

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scottp1951

· #4 · Apr 13, 2020

There is a spring and a rod assembly. There seems to be different size washers, Shoulder bolts and lock washers. There are torque specs that should be adhered to. Also I don't see any adjustment for the tension pulley but the belt guard has adjustment.Here are some instructions. Parts Link is at the bottom.

2. From bag of parts, position idler sheave (A) and belt guide (B) onto tiller tensioning arm (C). Make sure shoulder (D) on sheave is seated against the belt guide.

3. Install M8 x 1.25 x 50 mm flange bolt (E) from bottom side of tensioning arm. Install M8 x 1.25 lock nut on top side of sheave finger tight only.

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