[AT] 3000 lift control valve adjustment questions

Cecil Bearden crbearden at copper.net
Tue Sep 9 19:46:18 PDT 2008


Don:
It sounds like something has been changed.  Wish I could be more help..

Cecil in OKla

Don Bowen wrote:
>> If you cannot find anything that looks bent or warped, then I would use
>> the 2000 adjustments or find the specs for a 4000 and see if it is any
>> closer.  I know this is not much help, but do we know for sure that this
>> tractor has not had a top deck broken sometime and replaced from a
>> salvage yard?  Is there a serial number   on the top deck??
> 
> No serial number on the lift cover but there is a casting date and it is
> consistent with the dates on the rest of the tractor.
> 
> I did notice something after looking it over carefully.  The spring on the
> back  of the lift cover looks to be the wrong one.  It is an exposed spring
> similar to the 2000.  The photos of the 3000 show an enclosed spring.  The
> shop manual shows shims to being the front surface of the rear spring seat
> flush with the back of the cover.  Looking it over, if this were the case
> the draft control spring would be moved toward the lift valve and just might
> make it come out correct.  I am visiting a tractor salvage yard tomorrow and
> will take a look around.
> 
> Don Bowen  KI6DIU
> http://www.braingarage.com/Dons/Travels/journal/Journal.html
> 
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