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Author Topic: jd 450 b Dozer  (Read 2629 times)

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Offline randal

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jd 450 b Dozer
« on: May 22, 2015, 11:29:25 pm »
Hello all, I'm looking at buying this Jd 450 B and am wondering if someone could clue me into what these loose bolts are trying to hold in place and how difficult they would be to get to from the other side? Any other advice you guys might give will be greatly received,  Thanks for all your help!   

  
When in doubt, saw a log!!😁

Offline redprospector

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Re: jd 450 b Dozer
« Reply #1 on: May 23, 2015, 12:27:54 am »
Is that on the inside of the track? It looks like it could be the top roller bracket (carrier). The only reason it looks familiar is I just got through replacing mine.
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Offline randal

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Re: jd 450 b Dozer
« Reply #2 on: May 23, 2015, 12:32:41 am »
yes, that is looking toward the back.
When in doubt, saw a log!!😁

Offline beenthere

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Re: jd 450 b Dozer
« Reply #3 on: May 23, 2015, 12:34:51 am »
Pic is so close-up, can't tell what/where it is at.

What size are the bolts?

Hope you didn't delete that pic...
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Offline randal

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Re: jd 450 b Dozer
« Reply #4 on: May 23, 2015, 12:44:18 am »
Here is a pic of the other side. they are probably 1" bolts.

  
When in doubt, saw a log!!😁

Offline loggah

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Re: jd 450 b Dozer
« Reply #5 on: May 23, 2015, 06:20:32 am »
They are holding the track frame to the main frame cross beam. If i remember correctly they are supposed to be tight on a spacer bushing,the ones on the top should also have a spacer bushing under them .This allows for just a bit of movement in the track frame assembly. Don
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Offline snowstorm

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Re: jd 450 b Dozer
« Reply #6 on: May 23, 2015, 07:30:27 am »
track frame to the cross beam. they are trouble. along with the other 4 that go down thru the cross beam to the track frame. they had a top hat bushing when new. that was very hard brittle steel. i have seen they break tightening the bolts

Offline snowstorm

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Re: jd 450 b Dozer
« Reply #7 on: May 23, 2015, 07:36:54 am »
as far as getting from the other side. there shouldnt be a nut to get at the track frame is threaded. look over the rear cross bar. its round if that is worn where it goes thru the track frame you will never keep the bolts tight

Offline Ford_man

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Re: jd 450 b Dozer
« Reply #8 on: May 23, 2015, 08:27:20 am »
If you are looking to buy get down and crawl under it and look to see if all the belly pans are in place and look it over from under it. I didn't and $6000 later I was educated. They are a good tractor ,they have dry clutches with power steering. If the trans filter gets plugged the Power steering don't work. It can be cleaned and put back in. The trans holds 8 gal of fluid. 

Offline Ford_man

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Re: jd 450 b Dozer
« Reply #9 on: May 23, 2015, 08:31:31 am »
I forgot. Take the floorboards off and check the bolts from trans to clutch housing, the 2 top bolts on mine were broke and also broke the clutch housing.

Offline randal

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Re: jd 450 b Dozer
« Reply #10 on: May 23, 2015, 08:38:59 am »
Ok, that helps a lot! I have zero experience with tracks! This little dude pops up at what I'm thinking is a decent price so I decided to check it out. It looks like a pretty good little dozer, I did crawl under and look at the belly pans, but I didn't look that close! After reading a lot of the threads regarding the jd 450 I'm gonna look a whole lot closer! Will do Ford_man! I'm going back today to run it and put it through the motions, here are a few pics, any advice would help, Thanks you guys, this all helps a lot!

  

  

  

    
When in doubt, saw a log!!😁

Offline snowstorm

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Re: jd 450 b Dozer
« Reply #11 on: May 23, 2015, 09:15:07 am »
the outside blade decreases it value a lot some had hydra tilt some didnt

Offline WH_Conley

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Re: jd 450 b Dozer
« Reply #12 on: May 23, 2015, 09:42:38 am »
Only thing I can add that hasn't been mentioned is when you pull a steering lever, PULL. On the dry clutches there is a clutch free travel adjustment and a brake band adjustment. Get them right and don't slip the clutch. When you pull the steering clutch lever lock the track. The dry clutches will last longer.
Bill

Offline John Woodworth

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Re: jd 450 b Dozer
« Reply #13 on: May 23, 2015, 01:34:51 pm »
Be careful in what you pay, the undercarriage is worn ank replacement cost are more than the cats worth in some cases, the sprockets are worn and I'd guess between 30 and 40 percent on the rails, the idlers and rollers as well will be worn. Have the pins bushings been turned? From he pocket wear they should have been. It just depends on what the price is and what your projected use as to wether it's the rite machine for you.
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Offline randal

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Re: jd 450 b Dozer
« Reply #14 on: May 24, 2015, 11:45:58 pm »
Dozer Update! Knowing what I know about dozers(nothing) and listening to all your advice I passed on this dozer. I really didn't need one, just more or less wanted one. It wouldn't fix any problems I have it would just added more! I've decided on a Wallenstein fx 90 for my tractor since my biggest problem is access to logs. I've read quite a few threads concerning them and believe that would be my best option.  Thanks for all your advice!
When in doubt, saw a log!!😁