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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum

Re: PTO pump getting Hot

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wore out

07-12-2020 19:35:53

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What tractor and loader are we playing with?

Define "warm", as in degrees?

Is it a 540 RPM pump on a 540 RPM PTO? (You say you recently bought it, one never knows what a P.O. might have adapted.)

A restriction of some sort in the line from the pump to the valve (or in the line from the valve to the tank if it's capable of withstanding pressure) would cause heating.

Also, if the loader valve happens to be a closed-center valve (or a convertible valve set up for closed center operation) the bypass would be operating continuously, heating the oil.

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alberta dave

07-13-2020 18:02:30

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 Re: PTO pump getting Hot in reply to wore out, 07-12-2020 19:35:53  
Itís on an 1850. Warm is like you can set your hand on pump body for 15 seconds before it really starts to feel uncomfortable. The valve bank looks plumbed ok to me. No too noisy and controls are smooth. I also noticed that the RHS fuel fender tank which was converted to the reservoir has pressured up at some point. Here are some pictures of the set up.

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