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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Re: Dual speed PTO in a 2-155

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Author  [Modern View]
Merlin in Rushford

12-28-2012 09:18:30

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Hello, Mitch!
Here's what I know about installing a dual-speed PTO into a 2-155. In the early year models, yes, it is a simple bolt-in swap. The ASAE or OSHA set a horsepower limit of 140 PTO hp for a 540 RPM PTO, so at some serial number point (sorry, I do not know the serial number break), the dual-speed PTO for the 2-155 was discontinued. (This is why Deere sold more 4440's than 4640's, and IHC sold more 1486's than 1586's). Folks like you simply needed the dual-speed option. What I have seen done (and I am NOT recommending this, just saying I have seen it) is to remove some of the lower cast flange in the rear-interior of the final drive housing. White cast a taller flange (i.e. a smaller opening) in the 2-155 and 2-180 and later 140+ Hp tractors to prevent owners/dealers from installing the dual-speed PTO. The ones I have seen were done by drilling a series of small holes along the flange, and then sawing-off the excess material. Upon doing this, the owner takes full responsibility for any equipment damage or personal injury that may result from overpowering a 540 RPM implement. There is not a "torque limiter" on the earlier 540 PTO's, as is now offered by some manufacturers. I am sure that other older Oliver/White mechanics have seen this done, too. You may be lucky and have an early serial number tractor where it is a simple swap. Enjoy a safe weekend!

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