Where is the drain for the rear transmission on a 580C case backhoe. ( Not the shuttle) the 4 speed transmission that uses a the threaded in dipstick in a hole through the floor of the operator's platform. Also what is the most likely path that water is using to get into this transmission. I have no way to keep the machine inside and the oil is very over full and has lots of water contamination. Also what is the correct weight of replacement oil?
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case 580C rear transmission drain location , oil spec
- Thread starter BigEarl
- Start date
Tubroos
Member
There's a drain plug located under the transaxle, more or less centrally... See attached (from the 580C operator's manual.)
Thank you, I will look there. I could not find it the last time that I was under the machine and neither could my brother in law. I try to not get on the ground if not totally essential because it is so hard to get back into my wheel chair. Both my knees and one shoulder are bad so I am very thankful for my power wheelchair but it does limit my view.
Any suggestions as to the source of the water? We are too dry here in Nebraska to get a lot of water from the air. We have had the machine 7 years and purchased it from near Lincoln Nebraska. It has never been flooded in the time that we have had it, but can never know about before then. I have the shuttle out and disassembled. It does not show any signs of flood. A question, is it more likely that a re builder or the factory would paint mark the pump bolts? I am guessing a re builder. if so then the shuttle has been rebuilt. The machine does seem to have a replacement engine. The paint does not match the rest of the machine. The engine starts easy and burns no oil. Another question. What are the weak points on the 580C? Because of age I am about 1/2 way through replacing hydraulic cylinder seals. The other 1/2 are needing replaced. Thank you Torboos for the picture showing the drain plug location.
Tubroos
Member
In my experience one of the most common places for water to enter the transmission (on tractors in general) is the rubber boot at the base of the gear shift lever. Seems like a surprising amount of rain can get in if that doesn't fit well.m
Bell housing is now off and we will be removing the torque converter for a flush out tomorrow Lord willing. I am thinking I will dump a couple gallon of diesel in the transmission to rinse out the last of the water. The water trap in the bottom of the fuel tank was plugged. Also 3/4 full of water. I got it opened up today. I tightened the fuel petcock valve a turn in the tank. I hope that is where I am loosing fuel. I will check tomorrow. Making good progress. (for being wheel chair bound)
Is there a breather clean out also? If so where?