4320 john deere power steeering

John Hein · Aug 17, 2008

We have a 4320 John Deere showing 7500 hours. The power steering will not work when we start it until the foot clutch is released. Any suggestions?

Anonymous-0 · Aug 17, 2008

The charge pump for the main hydralic pump does not run when your foot on the clutch.

buickanddeere · Aug 17, 2008

There is a check valve(s) that prevent oil stored in the front oil cooler and storage tank if so equipped. From running back to the transmission sump when the engine is off or clutch pedal pushed.
The cooler and tank store oil to feed the front high pressure pump after startup or for brief moments when the clutch is pushed.
That's why equipment such as loaders or hydraulic motors must have the return line plumbed back directly to an optional ported trans oil filter housing.
Time to go through the parts book and find the check valves.

onefarmer · Aug 17, 2008

The tranny pump only runs when the clutch is engaged. On all my Deere's it is just our practice to start the engine and just sit for a minute to let the engine and hyd get their juices flowing. Then everything is ready to go.

John Hein · Aug 18, 2008

Thanks for all the input. Hoping to look at it in a short time. Any more ideas would be appreciated.

It is good to be on an active forum like this site.

John

4320 john deere power steeering

John Hein

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