Today I decided to change out the Hydro oil on the 1450. I started out by checking the level in the differential. That was full, so let it go for now. The hydro has been working just fine, but I had no idea how long since a filter change, so off came the tires and seat pan. Fairly simple process, 3 bolts per tire & 7 bolts in the seat pan. Next i placed a pan under the tractor and pulled the 'drain' plug. Let it run out of there and proceeded to remove the 18 bolts holding the cover on. A little prying and the cover came loose, along with a lot more fluid. Drain plug is way to high to get it all out. The fluid was not that dirty, but had a yellow cast to it. Not looking like Type A fluid was all that was in there. Here's some pics:
This is the knob I fixed up for the Drive/No Drive:
I went to Ace hardware and found the knob with 3/8 threaded stub on it. The Shaft stub is 3/8" also. I just bored the threads out of one end of the coupling nut and tapped in an 8-32 bolt to fit into the hole there. Works pretty good.
A view with the seat pan removed:
The wrench is on the drain plug. Note how high it is!
Here is the cover. note the color of the fluid.
Here's the filters. Nice comparison shots.
I did not get a shot of the inside of the box. My bad!
Next is the Hydro tag. It reads Hydro Gear. Model 90-2029. Serial 01-KA 19764
Here is the differential tag. It reads 2409 & under that is 008610. Guessing model and serial.
Here's the seat pan, top & bottom.
And here I have it going back together. Be advised, putting the cover back on is a PITA! I had to find 2 short 1/4" allthreads to align things. For the filter and spring, I held that in place with a putty knife until I could press the cover down tight enough to hold it in place.
I refilled it with 2 quarts of Dextron III. This put the fluid about 3/4" below the fill hole. I understand it is supposed to be 1", but hope this will not be an issue. Got it all back together and drove it around for some time. It worked as it should, so I got it back together right!
EDIT: Filter is a New Holland # JAC545440
Edited by KennyP, February 05, 2015 - 06:32 PM.