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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

J.D. 350 crawler

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Larry Metzgar

12-16-2006 06:47:16




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My 350 just won't steer anymore. I have tried to adjust the clutches under the seat, but to no avail. The mechanic at the local John Deere dealer says if they had to do it, it wouldnt be worth the cost of the dozer. So I guess we will do it ourselves in the shop.

Heres my questions:
What do I look for in the link to split the track. I have looked on the outside and all the links look the same. Secondly. I understand where to unbolt each side and understand after the sproket is removed each side weights around 400 lbs. We have a chain fall in the shop so that wont be bad. I was told to unbolt, and rotate backwards to pull the whole bands out for replacement. Whats clutch bands and brake bands going to cost. Are we on the right track. We use this on our farm and its handy, but dont want to sink tons of money into something thats not valued very high. The serial numbers make it about 1966. It has a reverser also, if this matters. Any help appreciated. Thanks

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Rob in Yukon

12-17-2006 18:05:23




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 Re: J.D. 350 crawler in reply to Larry Metzgar, 12-16-2006 06:47:16  
I had to pull the finals from my 350 to do the brakes and clutches a while back. The machine was in the bush with no reasonable way to use a chain hoist so I got some grade 8, 10 inch long bolts, 3/4 inch I think, and replaced the originals one at a time. I greased up the bolts and the finals slid right out on them. I had a floor jack underneath just in case but the bolts carried the load just fine. Then you can hoist the finals or whatever. My 17 year old son and I loaded them in the truck and brought them home to the shop to do the work. I just installed them in the reverse order, sliding on the bolts. Also, my tracks were slack enough with the grease squeezed out of the adjusters to just pull them aside at the rear of the machine after prying them off of the sprockets. This size of machine, things are small enough to manhandle most of the time. Not exactly by the book but it works.

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CH

12-16-2006 09:09:28




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 Re: J.D. 350 crawler in reply to Larry Metzgar, 12-16-2006 06:47:16  
I have service,parts and operators manuals and steering clutch kits for $499.99 per side All NEW parts not rebuilts or relines. Email me for my link if I can help.



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jdemaris

12-16-2006 08:39:52




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 Re: J.D. 350 crawler in reply to Larry Metzgar, 12-16-2006 06:47:16  
The original Deere tracks on that machine had master-pins with large heads on them and were held in by a retaining clip. The track-chain also had a special master-link with locating-flats in it. They are probably all long gone. Deere discontinued them late 70s - early 80s. The replacement masterpin is a straight pin that is slightly different diameter than the others and has a little dimple in the center of it to identify it. That might also be gone. Very often, after wear and few removals, the fit gets sloppy and they fall out. Subsequently some other pin gets jammed in, sometimes welded in place. You also might have aftermarket tracks.

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Lavoy

12-16-2006 07:54:17




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 Re: J.D. 350 crawler in reply to Larry Metzgar, 12-16-2006 06:47:16  
If you buy the parts from Deere, it will break you before you start. With aftermarket parts, you will be in the $600 range per side for the steering clutch and brake parts. While you have the finals off, I would pull both pinion shafts at the very least and replace the seals and bearings. If you have to, you can put in axle bearings and seals with the finals installed, but not the pinion shafts. It would however be easier to check the axle bearings while the finals are off. If you plan on keeping the crawler, do it right so you are not looking at fixing a spendy breakdown later.
It may or may not be easier to pull the tank and seat off so you can get at things easier, kind of up to you. If you don"t already have them, get a parts and a service manual before you tackle the job. Don"t be afraid of doing it yourself, just read the service manual and you will be fine.
Lavoy

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GLENN PYZAK

12-18-2006 12:32:14




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 Re: J.D. 350 crawler in reply to Lavoy, 12-16-2006 07:54:17  
The long bolt trick is very good,ive done both my finals that way,it saves alot of aligning bolts.
$500-600 each side is the magic number,it wont brake you.and they will last for years.If you have a six way blade,here is a good trick,use the blade to compress the track adjusters...just put a small 4x4 behind the blade and on the track
and use the angle hydualics to compress the adjuster,saves lots of time.

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