Replacing transmission oil in L2600DT with FEL

[luketratts]

Hey All

Quick question, I am replacing trans oil, I have the WSM so following that is pretty straight forward ( pull plugs, clean strainer, put plugs back in and fill with UDT, the only thing is the WSM doesn't reference the FEL.

If I just follow the WSM the oil in the 6 rams and all the lines on the FEL won't be replaced, is this common to not replace the oil in the rams or do I need to drain the Rams and lines then bleed afterward?

Sorry if been asked a million times previously but I had a bit of a search and couldn't find anything explaining what needs doing.


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[redmaher]

Retract all the rams that you can. I wouldn't drain the rams a little old fluid is fine. Also being a hydraulic system they are self priming. I.E. if you replace a ram or line you do not have to prime the system.

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[North Idaho Wolfman]

No you don't need to worry about the little bit of fluid in the rams and lines, and yes it is a rather small amount in the grand scheme of things.

 

[luketratts]

I am happy with that...thanks guys


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[tthorkil]

Retract all the rams that you can. I wouldn't drain the rams a little old fluid is fine. Also being a hydraulic system they are self priming. I.E. if you replace a ram or line you do not have to prime the system.

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Since most hydraulic cylinders on the tractor are double acting, doesn't retracting the cylinders just 'move' fluid from one end of the cylinder to the other?

 

[RaptorDuner]

Being retracted, the rod displaces more fluid than if it is extended. Manufacturers account for the fluid that doesn't get replaced at service when calculating filter size and service interval.