4455 piowershift, no clutch pressure when cold

820Art · Apr 17, 2014

We have a john deere 4455 powershift that doesn't drive when its cold. It will slowly creep ahead and the brakes easy stop it. Checked the main pressure and it doesn't move the gauge when its cold. When its warm, it gets full psi and it drives no problem. When its warm the brakes will stall the tractor just like they should. What could be the problem?

tim s · Apr 17, 2014

How much time is on the trans pump ??

Tx Jim · Apr 17, 2014

How long since hyd filters was changed and sump screen checked/cleaned???

rick deere · Apr 17, 2014

change filteres and use hygard from deere a also the screen in the bottom.

820Art · Apr 17, 2014

There is almost 400 hours since the hyd oil and filters were done. The pump Im not sure about. But it pumps it when it is warm. Normally if a pump is going bad it will work better when it is cold, or am I mistaken?

tim s · Apr 17, 2014

Yes that is the way they are normally,,and that has me scratching my head a bit,,I'm wondering if it could be sucking a little air around the o-rings on the suction pipe,,the one going back to the sump screen???

Circle K · Apr 17, 2014

I had that problem with mine. Had a split O ring on it.

4455 piowershift, no clutch pressure when cold

820Art

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tim s

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Tx Jim

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rick deere

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820Art

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tim s

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Circle K

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