Posted by mark d brown on October 18, 2007 at 07:49:08 from (203.206.103.245):
In Reply to: john deere 4440 backend posted by mark d brown on October 18, 2007 at 06:12:29:
yes, they have all been pulling the same implenents (although th 4430 has been put to the spray rig now in later years) i have been using castrol as special (used to be called jd trans fluid years ago) since new in 4440/4430 bought the 4450 2nd hand with 815 hrs on the clock, but beleive it has been on castrol oil since new (run castrol crf 30 in the crankcase by the way) same weight set up on 4430/4440 (cast 34"centres steel rims and about a 4" jd weight)the 4450 would be fairly close (havnt weighed them but it has duals, steel outer rims cast centres inside with one weight. all quad boxs done most of their heavy work in c1, occasionally b2 in 4450, planting in c2, odd occasion b3. never been worked at full throttle mostly about 1700/1900 rpm oil changes at 1000hrs or two years filters at 300. engine oil changes 150 hrs filters 300hrs. the 4440 does do more 3pl work (but the 4430 had the same planter on it for 4 seasons before we got the 4440) and the last 6/7 years the tyynes have been removed and converted to zero till so its not as heavy as it was. i cant work it out, it just does it, seems to be the nature of it. its been reraced each time it been pulled down. shows up in the filters every time, drop the oil and take the sensorod seals etc out, drag a magnet across under the crown wheel and you get metal, pull it down and its been the shafts everytime. no one over here can come up with a reason as to why it does it. beatuiful tractor apart from this, i have forced myself to sort of accept it a bit. the only thing i thought odd was when we did the 4450 the cluster gears in the diff were worn too, 4440 has never done it. we were going to just rerace the 4450 just because off the hours, although the drop tests on the axle bearings were still fair. probably just as well we didnt because you would nt have picked the shafts anyway they still had the machine marks across the face of the teeth (even the tooth that came off) so i dont know.
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