Hydraulic temperature gage

Hugo Habicht

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That is a good option if there is a spot for it on the unit.

It will do nothing to inform the operator of the fluid level, but by all means it’ll be a gauge to look at?
I think it would tell you something of the load you are putting onto your tractor. After a while (at different ambient temperatures) you will be able to tell what is correct or if there is a problem.

Will you use an analogue meter or digital display? If you spread the upper temperature range for an analogue meter you get better resolution in the area you are interested in.

I did that with the water temperature (left side), the cold part is really of no interest.

IMG_20250221_153355.jpg

If you modify a pipe it may be an idea to add a hydraulic pressure sensor after the pump as well. This gives you instantaneous load. I have that switchable on the same meter as the engine oil pressure (50 bar range then, my pump has only 35 bar nominal).
 

TheOldHokie

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Thanks for all of the replies, good, bad, and sarcastic. I think the best answer I got was that if the fluid got low I would notice a decrease in the performance tractor, makes good sense to me. I think this whole thing got blown out of proportion because of people not fully reading my question in full. All I wanted to do is install a temperature gage "WITHOUT "drilling a hole
anywhere on the tractor.
Just to let you know that I am 86 years old and have been around the block a few times and I don't like to be treated like i'm a 18 year old wet behind the ears kid. The following are some of the responses that I got that I just don't get.
It’s a tractor not a dozer. ??????
Step away and save yourself from bad / dumb / useless Internet video infomercials! This sounds like it comes from a snap on guy that doesn't like my harbor freight tools.
Maybe install an oil level sender in the oil pan. ??????
using temperature to infer level is fraught with peril, sort of like waiting on the oil pressure light to check the oil or the temperature gauge/light to check coolant. Like Hokie said, if you're concerned with level,
I think it would tell you something of the load you are putting onto your tractor. After a while (at different ambient temperatures) you will be able to tell what is correct or if there is a problem.

Will you use an analogue meter or digital display? If you spread the upper temperature range for an analogue meter you get better resolution in the area you are interested in.

I did that with the water temperature (left side), the cold part is really of no interest.

View attachment 174159 0

If you modify a pipe it may be an idea to add a hydraulic pressure sensor after the pump as well. This gives you instantaneous load. I have that switchable on the same meter as the engine oil pressure (50 bar range then, my pump has only 35 bar nominal).
Putting a tee and temp sender in a 2000+ PSI hydrauluc pressure line strikes me as a recipe for an instant blow out. :unsure: If you put it in the loader tank return you only get flow when the bucket is being curled. An oil cooler line seems like a better choice for multiple reasons.

Dan
 
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GreensvilleJay

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There's no reason why you 'can't put temp sensor... in high pressure circuit'. Using fittings rated for the pressure, you can. It's done all the time in industrial process control systems. Used to use Swagelok 10K PSI fittings in 2k5 test 'plants'. Overkill for sure but, better safe than sorry. Pretty sure NASA has a few installed ,here ,there everywhere in the projects they do.
 

TheOldHokie

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There's no reason why you 'can't put temp sensor... in high pressure circuit'. Using fittings rated for the pressure, you can. It's done all the time in industrial process control systems. Used to use Swagelok 10K PSI fittings in 2k5 test 'plants'. Overkill for sure but, better safe than sorry. Pretty sure NASA has a few installed ,here ,there everywhere in the projects they do.
What do you think the pressure rating is of the average automotive temp sender? People here dont shop at the NASA store.

Dan
 
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Dustball

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What do you think the pressure rating is of the average automotive temp sender? People here dont shop at the NASA store.

Dan
Agreed. If installed on the high pressure side, the pressure rating of the fittings/tee to be installed isn't the issue- it's the pressure rating of the temp sender.

For me, I'd look into seeing if an oil filter sandwich adapter exists and threading the temp sender into that.