4755 or 4955?

[JD4440]

Thanking you for the help with turning the 4440 up Hope you can help me with this as well...

Will be running a Hesston 4 * 4 baler and have found out that the 4440 have the power (seen a 4250 pulling a 4800) but it's a 2wd and a Hesston baler is heavy.

So, now i'm looking at a big JD SG2 with mfwd. Think a 4450 or 4455 is a bit to small though so I'm now looking at a 4755 or 4955. Since I am living in europe it's impossible to find 4760's or 4960's but sometimes there are 47-4955's sold that have the exhaustpipe pulled away from the hood and are made 1994, probably 47 or 4960's made in us and sold as 55's here.

The questions are, what is the difference between 47 and 4955's? Is a 4755 simply a detuned 4955, in other words, possible to turn up to the hp of an 4955? Or is the turbo, transmission or something different? What is the price for them in US with 8000 hours, 70% tires and in good shape?

4850 is a quite common tractor but is hard to find in good shape but I believe the 55's are better?

Read that the 60 (late 55's here) series are quite bad with engine and electricalproblems, is that true?

 

[cumminspuller]

To my knowledge the only difference is a 47 is detuned from a 49. I don't know this for a fact but I'm thinking that is the case. I've seen some 4650 and 4850's pulling Heston balers before. Every time the plunger hits in the baler the tractor will puff out a little more smoke. Kind of funny to watch. I'll agree about the 55's being better as well. 50 and 55 series were both good tractors though.

 

[JD4440]

This little 4250 smoked every time the plunger hit but it kept a good speed although. Think the hp of a 4955 will be enough, especially since I dont want the bales as compact as I could and the straw needs to be really dry when baling.

 

[nickg]

Simple answer is that yes a 4755 is just the same as a 4955 just not turnedup as much. Decent 47 0r 49 here in the states where I live will run you around 30-40,000 dollars.Yes its true the 60 series had a good deal of issues with electrical. The 55 series had a few problems but that was the first series deere that had all the electrical dash and sensors on the motors. The 55 series you see with the exhaust at the side could have been a repower kit or they decided to change it how the 60 series were. Ive seen guys do that here in the states.

 

[tim s]

I have a 4955 here in the shop right now that is giving me "fits" the electrical system is a mess, things have been by-passed,,the wiring is ratty, the dash is shook apart, it has seen a rough life, runs great, power train is fine,,the rest is a mess...I can only imagine what these new units will be like in the future,,they will be setting with "smoked" electrical systems,,and the 4440's will be still making head lands....

 

[Tx Jim]

(quoted from post at 11:05:19 10/27/11) I can only imagine what these new units will be like in the future,,they will be setting with "smoked" electrical systems,,and the 4440's will be still making head lands....

I'll bet the 4450 & 4455's will be right there with the 4440's making head lands!!!!!!!

 

[nickg]

Ill have to agree with you on that one. I miss the days of when my tractors broke down I could get them goin again. Now If i have troubles gota call someone to come out with a computer and plug in to see whats wrong and so many of the mechanics I get out to the farm are parts changers and cant really diagnos or fix anything. I can do so little to figure out whats wrong with it anymore. If sumthings wrong or not runnin rite on my 4430 or my 4020 I can almost always get them goin again. What gets me is all the electronics on an open cab tractor that cant be good at all.

 

[buickanddeere]

You can thank the environmental Zealots for making both both highway vehicles and off road equipment. More expensive, more complex and less reliable.
Who are those people anyways that voted in the politicians that listened to these professional complainers ?

 

[Anonymous-0]

I read your posted question, and just so happen to have a catalog for Abilene Machine tractor parts. In what I can find, the 4755 and 4955 have different Nippendenso injection pumps, as per the ND part numbers shown in the catalog. That is all that I can find that might differentiate the two. The catalog shows there are different ND pumps for the 4760 and 4960, too, which are different than the 55 series.

 

[JD4440]

nickg: I dont think these 55's are changed with kits to make them look like the ones in the 60 series, not very common that people are modifying such big tractors over here in europe but one never know. And beside they are sold as 1994 models.

The tractors I am looking at need to be in good shape and have fully working electrical system and most of them have. The good thing with these tractors is that the engine, transmission and PTO will work without electricity or am I wrong?

Nippendenso, is that a make just like Bosch injectionpumps? Good or bad?


After a little reading it seems like the old 466 is not used in the 55's or the 60's? The new engine is named 6076 I think but the stroke and bore is the same, what is the difference? Is the new one just as reliable as the 466?

(Does the 47 and 49 55's or 60's still have the characteristic starting sound (revving up)? Not very important but it belongs to the big SG2's I think...)

 

[Tx Jim]

(quoted from post at 06:15:57 10/29/11) what is the difference? Is the new one just as reliable as the 466?

(Does the 47 and 49 55's or 60's still have the characteristic starting sound (revving up)? Not very important but it belongs to the big SG2's I think...)

The water pumps(part # SE500912) on 6076 engines are driven off a gear. I don't like that as it's not a good feeling when weep hole in the pump stops up and antifreeze ends up in crankcase from a failed brg/seal.

Yes it speeds up on start up and slows down to idle. My 4255 with a 6076 starts very good down in the 30 degree temps with no block heater(lack of 120V elect. at shed) or ether. My 4255 has over 10000 hrs with no overhaul.

 

[JD4440]

Is the waterpump the only major difference that made them change the numbers? Hope these pumps will last as long as the old ones do.

What is a normal lifetime of the PS? Everything can happen but is it after 5k or 10k hours they need to be rebuilt? When overhaul needed, is it gears and bearings needed, just the slipping discs or is it both usually? Know that is it very individual but your experience?

Good to hear that the speeding up is still there.

 

[JD4440]

(quoted from post at 05:29:51 10/30/11) Is the waterpump the only major difference that made them change the numbers? Hope these pumps will last as long as the old ones do.

What is a normal lifetime of the PS? Everything can happen but is it after 5k or 10k hours they need to be rebuilt? When overhaul needed, is it gears and bearings needed, just the slipping discs or is it both usually? Know that is it very individual but your experience?

Good to hear that the speeding up is still there.

:?: tim s (the 4440 will probably stay here even if we buy a 47-4955...), Tx Jim, buick, ... ?

 

[tim s]

We have 2 4960's on the home farm, they are strong, we pull a 12 row planter with one and a 30ft air drill with the other, one sees summer work on a 20ft bat-wing mower,they are clean 9,000hr tractors that have been fairly trouble free, one smoked the C2 clutch last week,but it has seen a lot of work. We still have a 4440 and a 4240 for light work.

 

[Tx Jim]

JD4440
The 4440's weren't nicknamed the "Iron Horse" for no reason. The things that will shorten the life of a Powershift are running it low on oil,not servicing the hyd filter regularly and towing it without putting it in "tow". IIRC I think clutch linings and planetaries are what wears out.

 

[Anonymous-0]

Ok, I realize this is an old thread, but just gonna put my two
in. Imho, the 55 series were the best overall out of the three,
at least in the states. An '88 model 50 isn't too bad. They
have as much in common with a 55 as an '83 50. 60 series
are good tractors. I just prefer the inj. pump on a 55. On
another note, the 47 n 49s are a lil diff. 45 n 47s are basically
identical other than the 45s lack of an intercooler. 49s have
lower compression pistons, and a denso pump. I'm not 100%
but I'm thinkin the others have a series bosch pumps. Not
gonna swear though. The other goes back to 46 n 4840s. The
48-49s have different sun shafts n wider gears in the
planetaries in the rear end. The differential is the same, just
out in the axle housing. 40 series 46s had less springs in the
dampener than a 48. The 50 n ups dont have one anyway so
it doesnt matter. Long story short, you can turn a 46-47 up n
probably never know the difference. They're pretty tough, but
a 48 or 49 is capable of more horsepower, and more reliable
at any given power/load. Lots of folks will argue with me on
that, but it's just a simple fact of what mother deere put in
there.

 

[Anonymous-0]

That wasn't real clear. Not saying a 4840 will do more than a 4755. Lol. In respect in the series 4640 vs 4840 , 4755 vs 4955 etc. However a 4840 does basically have the same planetaty setup as a 4955, and it is heavier than a 4755. You can get similar performance out of a 4755 and 4955, just saying if a person was gonna turn one up to 260 n ballast it and work it hard, the 49 should technically survive longer.