Installing Calmer Upgrade Kit on John Deere 40 or 90 Series Corn Head

[@ShermanT.Potter]

Its really nice when you do a thorough inspection and decide to replace slip clutches at the same time. With the row unit gearboxes hex shaft pulled, you can turn the gearboxes very easily by hand. :D

[@jasonchesley6611]

I wish I would have had one of those pullers when I did mine! Probly $1800 puller

[@truthandfreedom885]

Can you describe the size and brand name of the hydraulic puller? Minimum size required of the hydraulic puller and the cost?

[@CalmerCornHeads]

We had this one custom built for us quite a few years ago! There are pullers that are available through John Deere that range in price.

[@ShermanT.Potter]

I used a manual puller, Posi-lock model 210. I had to make a custom extension rod to get enough reach (an old beefy hitch pin the correct diameter and cut to length would be excellent). Grind it to a rough point to center it on the stalk roll shaft, and make a small dimple on the other end to keep alignment with the puller. Or get a purpose built stalk roll puller.

[@MdTorikulIslam-uj7jd]

Bangladesh is clint

[@MdTorikulIslam-uj7jd]

Namba