Losing Hydraulic/transmission Fluid

[BJ Grimmett]

I have a New Holland TC35d, and It keeps losing Hydraulic/transmission fluid. I put a full gallon of hydro/tran. fluid in it the other day to fill it up, ran it about 3 hours and now its down to the very tip of the dipstick again. Everything seem to work fine and I cant find any where on the lines where it is leaking and no spots on the ground where I park? Any suggestions about what is going on?
B.J.

 

[davesl708]

Hi. Welcome.

Look closely at the hyd. lines. The leak maybe a crack that leaks under pressure. Quick connects can leak under pressure as well and leave little evidence when not under pressure.

Any spots after it sets?

 

[BJ Grimmett]

I don't see any spots when I leave it set. That is what is puzzling me. The hoses going to FOL are all clean there is a little gunk around connection points. Would it lose a gallon of fluid at these points in just five hours of work and sitting a couple of days? How do I check them under pressure?

Hi. Welcome.

Look closely at the hyd. lines. The leak maybe a crack that leaks under pressure. Quick connects can leak under pressure as well and leave little evidence when not under pressure.

Any spots after it sets?

 

[Leejohn]

Make sure you are parking on level ground and try to use the same parking spot. Check the engine oil level.

 

[J_J]

I have a New Holland TC35d, and It keeps losing Hydraulic/transmission fluid. I put a full gallon of hydro/tran. fluid in it the other day to fill it up, ran it about 3 hours and now its down to the very tip of the dipstick again. Everything seem to work fine and I cant find any where on the lines where it is leaking and no spots on the ground where I park? Any suggestions about what is going on?
B.J.

Check your engine oil level. The pump shaft seal may be leaking into the engine.

 

[Billrog]

When your parked on level ground and the bucket flat and level on the ground as well. Any high pressure leak spraying a fine mist you'll smell the hot hydraulic fluid .

 

[BJ Grimmett]

The engine oil is almost brand new and it is staying up well. I don't think that has anything to do with it. I do smell a hot smell sometimes when I am putting the FOL under a lot of pressure digging up roots. If this is a high pressure leak, what is the best way to find where the leak is?

 

[davesl708]

The engine oil is almost brand new and it is staying up well. I don't think that has anything to do with it. I do smell a hot smell sometimes when I am putting the FOL under a lot of pressure digging up roots. If this is a high pressure leak, what is the best way to find where the leak is?

If you are putting the attachment under load in a stationary position a puddle of fluid should be near the leak.
Loosing as much fluid as you stated should be leaving a trail or it is pooling somewhere in the tractor as stated earlier checking the engine oil is to see if that is where the fluid went.

 

[BJ Grimmett]

So how would I be able to tell if hydraulic fluid is going in the engine oil. Would the engine oil level just be higher?

 

[Leejohn]

So how would I be able to tell if hydraulic fluid is going in the engine oil. Would the engine oil level just be higher?

Yes it would.