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John Deere Tractors Discussion Forum
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4450 Quad Range Problem.....Tim S

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Tech 7

11-21-2012 13:30:03
206.47.90.66



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4450 MFWD, Quad range suddenly has no forward gears. (customer actually BACKED it to the shop,over 5 mi.).Have floor out and lid off the box....all shifters moving as they should forks and rails appear OK.By studying the TM and the top shaft layout is it possible that the woodruff keys on the syncro. drive collar have sheared??I see in the parts catalog that the syncro drive collar (part #RE227962) does sub up. What does everyone think of this theory???, Bob

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usetob

11-25-2012 19:27:18
205.188.117.12



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tech 7, 11-21-2012 13:30:03  
Tim, don't you wish you were in country where we pulled a lot of tandem dirt buckets? (-:



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ben brown

11-22-2012 19:55:52
184.63.225.47



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tech 7, 11-21-2012 13:30:03  
[no all factory it has the mud hog 4wheel power assist on it' thats the reason for the big tires it split the axle at pivot point look to be unfix-able but may have to give it a shot if he cant find a good one in sikeston mo. well know in the am what he wants to do
This post was edited by ben brown at 19:56:22 11/22/12.



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Tech 7

11-22-2012 11:10:52
206.47.90.66



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tech 7, 11-21-2012 13:30:03  
Thanks for (most of) the input. Yes the syncro driver was split and keys sheared. FYI this tractor has only about 6000 hr on it and untill a few years back was the "big dog" for this owner and it did a lot of heavy tillage work. Today it does planter,sidedressing and grain buggy work.



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Tim S

11-22-2012 11:14:57
75.60.207.71



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tech 7, 11-22-2012 11:10:52  
A "strong" lurch with a load can cause this,,like a real neck snapper...



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ben brown

11-21-2012 16:29:00
184.63.225.47



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tech 7, 11-21-2012 13:30:03  
My self I like going to farm less it super cold today and Friday project is this 2388 with broken axle



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Mtjohn

11-22-2012 19:35:21
70.196.193.190



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 Re: 4450 Quad Range Problem.....Tim S in reply to ben brown, 11-21-2012 16:29:00  
Ben it may just be the picture but that rear tire looks huge. Is this some oversized tire and maybe axle issue or is it factory. A few years ago when we were still using jd combines I was driving a 7720 t2 and the whole rear axle fell off the pivot point. Jacked it back up and was going again same day. Hell of a ride though.



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Tim S

11-21-2012 17:23:40
75.60.207.71



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 Re: 4450 Quad Range Problem.....Tim S in reply to ben brown, 11-21-2012 16:29:00  
I use to do a lot of combine work off the truck before I built this shop,,now I'm too spoiled to go out :^)..I don't miss the combine work, seems like they always draw a lot of blood...



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sideconsole4020guy

11-21-2012 17:34:54
216.249.194.192



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tim S, 11-21-2012 17:23:40  
You are right about that Tim lol, I work on them every day and loose a fair share of blood



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ben brown

11-21-2012 15:15:45
184.63.225.47



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tech 7, 11-21-2012 13:30:03  
i have a customer who has 8 4020 that he uses in his tobacco operation seem there coming and going quit often with the migrant help it sure good for my cash flow have several customer that raise 200 plus acres of tobacco so lots small to med, and large tractor to keep me busy every thing from allies to deere and ford and ih with a few Massey throwed in just to keep me on my toes along with some combines just to keep it interesting oh forget 1150 and 1150c along with one d6 cat

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Tim S

11-21-2012 15:21:51
75.60.207.71



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 Re: 4450 Quad Range Problem.....Tim S in reply to ben brown, 11-21-2012 15:15:45  

Not me Ben,,I am strictly Deere Only...and it has to happen here in my shop, I haven't put tags on my service truck for several years, but I have been giving my "ambulance" a good work out..



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Tim S

11-21-2012 15:05:38
75.60.207.71



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tech 7, 11-21-2012 13:30:03  
Yes my vote is a sheared woodruff key and it most likely split the drive collar which is why it didn't gauld as usual they do..Normaly when this happens the shifter binds up and won't let you get to reverse. I have a lot of transmission work going on in here right now, a 4440 PS, a 4440 Quad, and a 4040 Quad, just finished a 4960 PS, and another 4960 coming in next week for a transmission,,got all my splitting stands tyed up..

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Mike M

11-21-2012 17:56:10
70.194.0.14



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tim S, 11-21-2012 15:05:38  
Hum? A shop full of transmission work but yet everyone seems to claim the're bullet proof when someone asks about them hear ?



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DEEREMEYER1

11-21-2012 18:10:24
71.50.25.139



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 Re: 4450 Quad Range Problem.....Tim S in reply to Mike M, 11-21-2012 17:56:10  
The newest tractor he mentioned is 20 years old. And of course he didn't mention what the work is, besides being transmission work, which could mean anything. Skimp on maintenance, use cheap oil, abuse the tractor or simply wear it out and they all need work sooner or later.



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Tim S

11-21-2012 20:17:01
75.60.207.71



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 Re: 4450 Quad Range Problem.....Tim S in reply to DEEREMEYER1, 11-21-2012 18:10:24  
Yes I do think they are near bullet proof, but these are all High hour machines,,and the 44's have the pump screw cranked in,, the PS 44 is a very low(4 digit)serial #, the torsion dampener (dry clutch) was worn bad, that seems to be where the slippage was , I'm going to service the front clutches and the pump while I'm in there, the other 4440 has a trans noise on the "pull" side, I think it's the rear bottom shaft bearing,, it still shifts nice, and stays in gear , I have seen that bearing race kinda 'shell off' before.It is odd to have several 40 series in here, it's like they caught a virus or something :^(,,but when I look at the draw bars I see that they have been on the front line for a long time...

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buickanddeere

11-21-2012 14:35:32
209.240.121.199



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tech 7, 11-21-2012 13:30:03  
Have to worry some about the care and service the tractor has endured over 3 decades or so. By somebody who will keep driving a broken crippled tractor.



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ben brown

11-21-2012 13:55:24
184.63.225.47



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 Re: 4450 Quad Range Problem.....Tim S in reply to Tech 7, 11-21-2012 13:30:03  
Quoting Removed, click Modern View to see

that can happen took one down few weaks back for shifter problem this one had galled up and was still moving



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