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 | buck69hunter
Join Date: Jun 2010 Posts: 3 Isanti, MN 
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2010-06-29 171939
I'm new to this forum... While brush-hogging, my JD4310 is unable to go forward, but reverse works (after I shut off and restart). Flashing code short-long-long-long. Very possible that wires or connectors got bumped, but cannot see anything unusual underneath.
I'm told that the fault codes are listed in my OM, NOT SO in my OMLVU13193_H2. A list of the codes would be nice to have on hand.
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 | kwschumm
Join Date: Feb 2003 Posts: 5764 NW Oregon 
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2010-06-29 171961
Codes are in the technical manual. The list includes fault causes, machine responses, pointers to locations in the manual to begin troubleshooting and how to reset the codes. There are separate lists for eHydro and ePowrReverser transmissions.
Assuming you have an eHydro the short-long-long-long code means "Valve output to Forward or Reverse coil". The fault cause is "The calculated value for the coil resistance exceeds the valid range due to open in short circuit", so it does sound like the wiring got messed up. To reset you power cycle the machine to off then try again. If problem continues and you can't see a wiring problem you'd probably need the technical manual to troubleshoot (wiring diagrams, connector pin-outs, etc). ....
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| buck69hunter
Join Date: Jun 2010 Posts: 3 Isanti, MN
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2010-06-30 171967
I'll have to stop by the dealer and see if they'll give me a copy of those pages.
Last night, I was able to locate my problem. One of the wires at a plug under the station had been pulled back to the point of little or no contact. Got it all back together and it all works fine again. As a precaution, I wire-tied the connector further up out of the way.
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| hardwood
Join Date: Dec 2002 Posts: 3583 iowa
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2010-06-30 171970
I think that can be rather common for the 4xxx series. I've had the same thing while bush hogging tall grass or weeds.Since then I installed the optional frame support brace that goes from the front of the engine to the rear housing, that also protects lots of things on the belly of the tractor.
The frame support brace is available as a parts item from Deere that gives the engine, flywheel and transmission housings a bit of reserve strength when loaders, backhoes etc. are frequently used on the tractor. I personally haven't heard of a 4xxx series being broken in half from subframe mounted backhoe or a loader but anything can and probably has been broken. I don't remember the cost of the brace but it wasn't that bad for a pretty substantual piece of steel and installation was only an hour or so. I don't have a mid mount mower, but I think the brace would be in the way for the mower. ....
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