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Reload this Page 782D no forward, reverse, or lift-- please help
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Old 04-14-2014, 07:55 PM
InternationalCub InternationalCub is offline
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Default 782D no forward, reverse, or lift-- please help
Hi everyone,

I have a 782D that I was plowing with a few weeks ago. As I was going from forward to reverse, the tires stopped turning (either direction) and the plow dropped all the way to the ground. The engine was running fine.

I can't figure out the problem. The engine starts and runs great. It just won't transfer any power to the wheels and the hydro lift for the plow/mowing deck doesn't move. I checked the assembly from the lever on the dashboard to the transmission and everything is intact. It only has 465 hours on it. I bought it with 416 hours on it 2 years ago. I'm not sure when the hydro fluid was last changed, but I never changed it. It's not low on fluid and there are no leaks. I had no problems with the lift or transmission before this problem.

Any help/advice would be appreciated. I was looking to sell the tractor, but I need to get this issue straightened out.

Paul
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Old 04-14-2014, 07:59 PM
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IHCadetCollector IHCadetCollector is offline
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Check the driveshaft.
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Old 04-14-2014, 08:50 PM
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I'm not completely up on my knowledge of 782s but I do know that if the drive shaft quits then everything from the engine back quits. On the older models there are spiral pins that can break causing the same issue- check to see if this is an issue.
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Old 04-14-2014, 09:19 PM
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Clogged filter or problem with the relief valves (stuck?). I would start with regular service of it by changing the fluid and filter and then pull the check valves and inspect them.

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Old 04-14-2014, 09:29 PM
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Originally Posted by Cub Cadet 123 View Post
Clogged filter or problem with the relief valves (stuck?). I would start with regular service of it by changing the fluid and filter and then pull the check valves and inspect them.

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Check valves sounds like it would cause symptoms. I think if it were a driveshaft/pin issue the plow would not have dropped but maybe I'm wrong
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Old 04-14-2014, 09:47 PM
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Does it even have fluid????
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Old 04-14-2014, 10:35 PM
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My money is on a broke driveshaft pin.
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Old 04-14-2014, 10:52 PM
Yosemite Sam Yosemite Sam is offline
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So far all good suggestions, and I agree that you should probably change the fluid and filter, especially if you don't know the history of the machine.

I too am a little puzzled by the blade dropping.

However, before anything, I would check the input shaft on the trans to make sure it's turning with the drive shaft (and engine) the pin on the back coupler can break and you can't tell that it's broken.
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Old 04-14-2014, 11:36 PM
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It would seem to me that if the shaft was sheared then there would be no pressure to hold up the plow or drive the tranny. Does that model have power steering? If so then that would not work either.
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Old 04-14-2014, 11:56 PM
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It would seem to me that if the shaft was sheared then there would be no pressure to hold up the plow or drive the tranny. Does that model have power steering? If so then that would not work either.
The valve holds up the lift, even if the pump stops. No, a 782D doesn't have power steering.

May have two problems.
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