Good news for those of you planning on doing the 300 hour service on your class III boomers. I changed the transmission and front axle oil on my TC45D and it was not to difficult.
The instructions and illustrations in the manual are pretty clear. I had some trouble finding the HST filter as it is behind the left hand loader subframe. It is impossible to get a filter wrench on it so tighten it by hand for your own sanity. The Hydraulic filter, which is inboard from the right rear tire, can not be pulled out upright if you have a loader, so plan on spilling oil while removing it. The front axle center drain is easy to get to but slow to drain. The right and left drains are behind my tires (I have R4's) so I took an old funnel and cut it down to fit under the drain plugs. Speaking of which there are two plugs for the transmission that take 19mm sockets and the three plugs for the front axle that take 16mm sockets.
I used two 5 gallon buckets under the transmission to catch the waste oil. To get the bucket under the rear drain I had to remove the drawbar. The keeper bolt on the drawbar takes a 15mm socket.
I bought a cheap plastic funnel with a flexible spout and a long narrow funnel at Autozone. I used the flexible one to fill the hydraulic system (the fill cap is next to the dipstick behind the fuel tank and can not be poured directly into with a 5 gallon bucket) and the front finals. I used the long narrow funnel to fill the front axle.
I spent about 2.5 hours total, some time of which was waiting for the front axle to drain and modifying the funnel to get the front final drives.
Do yourselves a favor and have the following supplies on hand:
Flexible funnel
15, 16, and 19 mm sockets
12 gallons NH 134 Hydraulic oil (accept no substitutes)
Rags (don't be stingy here)
Oil dry or cat litter
12 gallon container for wast oil
Brake Cleaner (this removes spilled oil from tractor surfaces or from garage floor)
good luck!
JT
The instructions and illustrations in the manual are pretty clear. I had some trouble finding the HST filter as it is behind the left hand loader subframe. It is impossible to get a filter wrench on it so tighten it by hand for your own sanity. The Hydraulic filter, which is inboard from the right rear tire, can not be pulled out upright if you have a loader, so plan on spilling oil while removing it. The front axle center drain is easy to get to but slow to drain. The right and left drains are behind my tires (I have R4's) so I took an old funnel and cut it down to fit under the drain plugs. Speaking of which there are two plugs for the transmission that take 19mm sockets and the three plugs for the front axle that take 16mm sockets.
I used two 5 gallon buckets under the transmission to catch the waste oil. To get the bucket under the rear drain I had to remove the drawbar. The keeper bolt on the drawbar takes a 15mm socket.
I bought a cheap plastic funnel with a flexible spout and a long narrow funnel at Autozone. I used the flexible one to fill the hydraulic system (the fill cap is next to the dipstick behind the fuel tank and can not be poured directly into with a 5 gallon bucket) and the front finals. I used the long narrow funnel to fill the front axle.
I spent about 2.5 hours total, some time of which was waiting for the front axle to drain and modifying the funnel to get the front final drives.
Do yourselves a favor and have the following supplies on hand:
Flexible funnel
15, 16, and 19 mm sockets
12 gallons NH 134 Hydraulic oil (accept no substitutes)
Rags (don't be stingy here)
Oil dry or cat litter
12 gallon container for wast oil
Brake Cleaner (this removes spilled oil from tractor surfaces or from garage floor)
good luck!
JT