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Hydro

Gear oil foaming

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Hydro

I changed the gear oil in my 416-8. It looked like it had not been done in a while. I let the oil drain after running the tractor. I left the plug out for a couple of days. Then I filled the rear end with diesel and let that sit 2-3 days. I drained off the diesel and blew some air down the dipstick tube thinking I got it all and replaced the gear oil with 90-140.

When I run the tractor the oil is full of air bubbles almost foams. It has a yellowish color. Did I somehow leave diesel in there?

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sorekiwi

Unless you jack up the front of the tractor, you will trap some of the old fluid in the case when you drain it. I'm gonna steal one of Denny's pictures to show why.

He has added another drain plug further forward on this gearbox to be able to drain the stuff that is in front of the boss for the through bolt. (Great idea Denny!)

DSC00596.jpg

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Hydro

How much should I elevate the front end? I guess the new oil is contaminated so I should do another complete change?

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can whlvr

hey gary when i flush a new to me unit i put 80 -90 back in run it for a few hours and then drain that and put new in,thats why i buy the gear oil by the 5 gallon pail,and then i can flush the others more often too,i use the barely used oil in my chain saw for bar lube

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