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Reload this Page 782 Hydro Issues - where to start
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  #1  
Old 03-27-2025, 12:50 PM
TN_Explorer TN_Explorer is offline
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Join Date: Apr 2013
Location: Tennessee
Posts: 111
Default 782 Hydro Issues - where to start
I parked my 782 to refill the spreader, When I started it & put it in forward gear, there was a jerk and all hydraulics were lost - no forward, no reverse, and no lift. I pulled it into the garage and after a couple of hours pulled the cover to see if the shaft was turning. When I started it the lift worked and reverse worked, so I backed it out of the garage, and put it in forward with the same result. Everything lost. I can also push it freely (rear wheels don't lock like normal hydro operation)

History: new valves several years ago, clean HyTran and filter. It has always had an issue going into forward when first starting. Lift and reverse would work immediately, but I would have to move the lever from neutral to forward several times, then it would jerk into forward gear and work fine the rest of the day. Other than that it has been amazingly reliable for the 15 years I've owned it.

My first guess is a faulty valve, but I'd like to properly troubleshoot it before getting out the money cannon. I'd appreciate some experienced input on where to start.

Thanks!
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Old 03-27-2025, 02:18 PM
finsruskw finsruskw is offline
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Join Date: Mar 2013
Location: Iowa
Posts: 3,338
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Busted coiled Spirol pin in the drive shaft.
Common issue on these units.
Remove the tunnel cover and make sure the driveshaft AND the input shaft of the pump are both turning while the engine is running.

Replace with a new 1/4" Spirol pin, NOT a split pin.
While you have it apart, check that the holes in the couplers, driveshaft and input shaft are not wallowed out of round
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  #3  
Old 03-27-2025, 04:11 PM
TN_Explorer TN_Explorer is offline
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Join Date: Apr 2013
Location: Tennessee
Posts: 111
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Yep, the pins are the culprit. I saw the fan spinning & assumed . . . a closer look confirms the pins are broken. Thanks for an easy fix!

UPDATE: Ordered pins Thursday, received them Friday and it is running again on Saturday. Love this group!
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.

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