300 Hour Service

SteveInMD · Oct 26, 2004

I just did my 300 hour service on my TC33D. The manual says the tractor will take about 8.8 gallons of hydraulic fluid if it's a hydrostatic transmission. I checked the fluid level after adding about 7.5 gallons and it was already overfilled. I ran it a bit and worked the 3 point hitch and loader, but the level was still too high. I ended up draining out some fluid to get near to the correct range. My question is, did I do something wrong? Also, what would happen if I had left it overfilled?

MackAttack · Oct 26, 2004

I had a similar situation with my TC35D. I ended up draining out the excess.

PineRidge · Oct 26, 2004

Steve how many drain points did you use to drain the old oil? My TC-40D had 2 different drains to dump all the hydraulic oil.

Phred · Oct 26, 2004

Pineridge probably has the answer. A TN has a number of drain plugs.
But even then you will not get all the fluid out.
Kind of like an oil change or a tranny fluid swap on a truck or car. Some of the oil will still remain in side the machine stuck to the walls, and inner workings.

Its a good idea to fill it back up with say 75-80% of the "capacity", and then check the level. You can then top off as needed.

Fred

SteveInMD · Oct 27, 2004

I drained the oil from three points. I think that is all of plugs a TC33D has.

jinman · Oct 27, 2004

Here are some possibilities for additional trapped oil as Phred suggested:

1. hydrostatic transmission
2. hydrostatic and hydraulic filters
3. hydraulic pump
4. hydraulic oil cooler
5. lift cylinder
6. loader
7. wet brake assy/housing

I don't know if you changed both filters when you changed the oil, but all those other points would have some trapped fluid. A gallon is a lot. Also, did you check the level before draining all the oil?

Next time, you'll know to watch it. Nuthin' like experience as a great teacher. /forums/images/graemlins/crazy.gif

In a hydraulic oil reservoir, an extra couple of quarts won't make much difference, but if the tractor were old and had poor axle seals, you could see some leakage. I'd take the oil out just as you did, but I doubt you'd see any negative effects on your tractor. /forums/images/graemlins/smile.gif

markie61 · Oct 27, 2004

I had the same issue on my TC40D. It overfilled by the equivalent of the "hashmark" area of the dipstick. I left it in. It kind of "cured" itself 50 hours later when I added a hydraulic top link. I guess the hoses and cylinder hold the volume of my overfill. No problems or leaks occured before then.
Mark

PineRidge · Oct 27, 2004

Personally I think that's how New Holland gets us all to buy a little extra hydraulic oil. /forums/images/graemlins/smirk.gif It's good business for them, no?

jinman · Oct 27, 2004

</font><font color="blue" class="small">( Personally I think that's how New Holland gets us all to buy a little extra hydraulic oil. /forums/images/graemlins/smirk.gif It's good business for them, no? )</font>

I think you are right, Pineridge. But I draw the line when they try to sell me 1-1/2 filters. /forums/images/graemlins/shocked.gif /forums/images/graemlins/laugh.gif