how hot is hydraulic oil supposed to get

[Roger66]

Don't tell me to check the owners manual. I have a custom home made machine cobbled together from what I could find, no manual exists. You could call it a tractor, it's driveable, it can take attachments like a back hoe, but it's primary function is a log splitter. It's been working great for about 10 years now. If your interested in the machine, you can look at the links below.

My question is how hot can/should hydraulic oil get in a typical hydraulic application? My oil get's up to 220 after a few hours of working and I usually give the machine and me a break at that time. For engine oil you want to get the oil over 212 to boil out any water that has condensed in the system, but what's the rule for hydraulic oil? How hot is proper operating temp? How hot is getting too hot and time to shut down?

Thanks!



Homemade Self-Propelled Log Splitter - YouTube
Home made log splitter with 6 way head - YouTube
Backhoe attachment - YouTube

 

[davedj1]

What does your owners.........LOL
165-180
that's quite the buggy you have there!

 

[RickB]

Typically 100*F above ambient not to exceed 200*F. In your application I would look into an oil cooler.

 

[coldsteelva]

+1 on the oil cooler and perhaps an electric fan since the log splitter would be stationary for prolonged periods.

 

[Tx Jim]

Typically 100*F above ambient not to exceed 200*F. In your application I would look into an oil cooler.

DITTO 100°F above ambient is a good rule of thumb.

 

[tvman]

DITTO 100°F above ambient is a good rule of thumb.

I too have been wondering about the hydraulic oil temp. Would anyone know where would be the best place to install the sending unit?

It would be on a Kubota L4330. Thanks

 

[RNeumann]

As stated, an oil cooler. A bigger reservoir would also help some.

Is one attachment causing the issue or all of them?

 

[Zebrafive]

I too have been wondering about the hydraulic oil temp. Would anyone know where would be the best place to install the sending unit?

It would be on a Kubota L4330. Thanks

One of those "no touch" point and shoot temp guns would be easier. If not how you want to do it, I would say in the sump.

 

[Zebrafive]

+1 on the oil cooler and perhaps an electric fan since the log splitter would be stationary for prolonged periods.

Or possibly mount an oil cooler so the engine's fan cools it, maybe in front of the radiator?

 

[dalola]

Don't tell me to check the owners manual. I have a custom home made machine cobbled together from what I could find, no manual exists. You could call it a tractor, it's driveable, it can take attachments like a back hoe, but it's primary function is a log splitter. It's been working great for about 10 years now. If your interested in the machine, you can look at the links below.

Homemade Self-Propelled Log Splitter - YouTube
Home made log splitter with 6 way head - YouTube
Backhoe attachment - YouTube

That is just fantastic! Love the back-yard ingenuity. Thanks for making me smile today.