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NEMO | Have a new to me JD 9400. When running NH3 it runs really good for awhile when you first start out. Once it warms up, 1/2 hour to hour into using it, the tractor cuts out and falls on it's face.
We initially thought fuel issues (at first didn't realize problem seemed to be associated with warm up) so changed filters, drained water, etc. Then JD mechanic thought we had an injector messing up once everything gets warmed up. JD mechanic been into injectors and cups twice now and the problem still not solved.
Hired hand ran 5 or 6 acres yesterday in heat of day and it started acting up. This morning it was cool and slight mist so I ran about 15 acres before it started falling on it's face. Cuts out, lacking power, lacking fuel. You can hardly get the NH3 shut off and tractor stopped in time before it tries to die. Runs rough, cutting out, sometimes fluttering. Once it recovers, sounds good, but try to take off (applicator out of the ground) and it acts up again.
Any ideas or suggestions? Things to look for or try?
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JD 9400 troubles
