Hydraulic fluid loss

[CaptDave]

Morning All
I have a L3410 HST. The other day (-25C) I started it up. Left it running around 1600 rpm. About ten minutes later I notice a huge puddle of hyd oil on the ground under the engine. Oil was everywhere, like the fan had blown it all over the engine. The tractor has a small oil cooler in front of the rad. I cleaned everything up. Put 20 litres of new oil in. Cleaned the road, neighbours drive, did everything I could think of. Not a drop of oil anywhere.
For the life of me I can't figure out why it dumped it all the other day.
Any ideas would be appreciated.
I have had this tractor for 4 years and never lost a drop of anything. It is an awesome machine.
Thanks for the help.

Dave

 

[Bulldog]

First thing that comes to my mind is a cold weather leak. My old Cat loader would go all summer and not leak a drop but when it turned cold it had small leaks everywhere. After the machine got warm they would quit leaking till the next morning.

 

[CaptDave]

Yes, one of life's little mystery's.

 

[D2Cat]

Like Bulldog said, cold weather causes things to shrink. Once you got it cleaned up, wipe hoses, base of filters, ect. with a paper towels. Then start it up and watch, see if you can come to any determination of where it might be coming from. Probably just need to tighten something 1/16 of a turn to make it quit!!

 

[85Hokie]

Like Bulldog said, cold weather causes things to shrink. Once you got it cleaned up, wipe hoses, base of filters, ect. with a paper towels. Then start it up and watch, see if you can come to any determination of where it might be coming from. Probably just need to tighten something 1/16 of a turn to make it quit!!

WHAT HE SAID !!! ^^^^^

Next cold morning, repeat your start up and then WATCH and see where she is leaking, it will give you a good idea where to apply the wrench!