Which trans does 4030 have (SR or QR). I had a 4030 with SR trans when I 1st started custom rd baling. I much prefer the QR trans with twice as many speeds. Perma-clutch on JD tractors is very good as my 4255 with same type clutch has 11,600+ hrs on original clutch & it's operated a rd baler starting/stopping over 100,000 times not to mention the many 100's of acres this clutch has been used to pull a plow.
If 686 operator station & controls are anywhere close to same design as a 986 I'd choose 4030 for sure. Yrs back I drove my friends 986 for 4 hrs & disconnected it & attached 24 ft field cult to my JD 4255 to complete plowing. Every yr after initial yr I plowed for my friend I used my 4255.
I was unaware JD 329 CID engine had a bad history of engine cylinder liner failure due to cavitation. 329 CID diesel engine utilizes same part # for cylinder liner used in 153 different JD engines.
I think poor coolant maintenance is the major cause for liner cavitation.
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Today's Featured Article - Identifying Tractor Smells - by Curtis Von Fange. We are continuing our series on learning to talk the language of our tractor. Since we can’t actually talk to our tractors, though some of the older sect of farmers might disagree, we use our five physical senses to observe and construe what our iron age friends are trying to tell us. We have already talked about some of the colors the unit might leave as clues to its well-being. Now we are going to use our noses to diagnose particular smells. ELECTRICAL SMELLS
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