[AT] Right to repair

[Cecil Bearden]

My 2003 TS110 NH had the same problem.  I wired around it.  It also had 
a hydraulic filter sensor that failed going to the field once.  I lost 
10 gallons of special fluid at  $160 and had to remove the wheel to get 
to the sensor that cost  about $50.  All to tell me that I needed to 
change the filter.
Cecil

On 11/27/2019 12:10 AM, Richard Walker wrote:
>
>> The point of all this is that the weak link in the newer vehicles is 
>> the electronics. They apparently do not understand "worst case design".
>>
>> Phil in TX 
>
>
> Amen. Recently got a call for help from my neighbor that his 2007 New 
> Holland 4WD diesel tractor was dead.  A 5-amp fuse would continually 
> blow, even with the key switch off.
>
> He and his BIL had done some basic testing with no luck.  As his wife 
> quipped, now THREE idiots will be working on the problem instead of two!
>
> Luckily the owner's manual had a wiring diagram.  I methodically 
> started at square one, battery condition.  Then grounds and 
> connectors, safety switches, relays, the key switch, etc.  Checked 
> glow plug bus and fuel shutoff coil for any shorts to ground.  Finally 
> the problem narrowed down to a plug-in module termed the "Safety 
> Controller".  With it unplugged, the fuse was fine.  When plugged in, 
> the fuse immediately blew.  Encapsulated black box, no clue what it 
> contained so way to test for an internal short.
>
> Since a new module was over $300 from the NH dealer and not returnable 
> (electrical component), all three of us agreed it would be wisest to 
> trailer the tractor into the dealer to have them double check our 
> diagnosis.  We guessed under an hour of mechanic's labor to confirm 
> our diagnosis and plug in a new controller.  That way the job would be 
> warrantied.  My neighbor related to the service manager all the 
> troubleshooting tests we'd done and how the problem seemed to be the 
> controller.
>
> Two weeks later, my neighbor trailered his tractor back home along 
> with a bill for just under $1,000. $325 of it was for a new 
> controller, the remainder labor for mechanic's "testing".  ????  My 
> neighbor bluntly asked the service department manager if we'd just 
> bought a new controller and plugged it in ourselves if that would have 
> fixed the problem.  After some hemming and hawing, the manager's 
> answer was yes.
>
> A daisy chain of safety switches, plus maybe one relay, would 
> accomplish the same end result as that "Safety Controller" module.  
> Basically the engine won't start if you've done something dumb like 
> leave it in gear or with the PTO engaged.  Like how '50's to 70's era 
> tractors were sensibly designed.
>
> - Richard in OR
>
>
>
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