Post support questions about your JD350 and newer crawler here
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BSims66173
- 420 crawler
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- Posts: 41
- Joined: Thu Sep 22, 2005 7:04 pm
- Location: Alabama
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by BSims66173 » Fri Jun 26, 2009 7:56 pm
I think I figured out the problem with my reverser. As you can see in the very first picture in this post, the clutch lever is worn. I guess it was approx 3/32 of an inch groove that was worn out in the lever. This was not allowing the clutch valve to fully open when the clutch was released. I tried welding up the groove and machining back out, but could never get it to operate smoothly, so I decided to just make a new one. It is not an exact match, but when installed, the clutch operates very smoothly and is traveling full stroke. Hopefully when all the parts arrive and I get it back together it will let me build full pressure in the reverser. I still have a lot of other things to fix and will be asking more questions as I go along. Here is a pic of the new clutch lever. Deere wanted $132.00 for a new one. This was milled from a piece of 1/2 inch steel I had laying around.
![Image](http://www.jdcrawlers.com/uploads/p1030272_small.jpg)
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BSims66173
- 420 crawler
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- Posts: 41
- Joined: Thu Sep 22, 2005 7:04 pm
- Location: Alabama
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by BSims66173 » Sat Jun 27, 2009 7:52 pm
I have another question. I have fixed the side rails that were broken and am now ready to start on the crossmembers and track frames. I have read several post on here that the 350s have a floating mount to the track frames. What does that mean. Is there supposed to be any movement on the front crossmember? I can make the bushings that hold the crossmember to the track frame. Is there supposed to be any up and down movement or are the bushings supposed to hold the crossmember tight to the track frame? My crossmember is worn some and I will have to build it up, but I am not sure how rigid this is supposed to be. Any help will be appreciated.
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CatD8RII
- 1010 crawler
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- Posts: 324
- Joined: Mon Jan 16, 2006 9:26 am
- Location: PA
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by CatD8RII » Sun Jun 28, 2009 11:15 am
The late 350"A"s on up used a "Flanged bushing" so to speak, it lets the crossmember walk both directions a small ammount. All 16 bolts attaching the bar to the track frames have these bushings. I think the inner 4 bolts are bigger than the upper 8. You can still get them from Deere, or if you want to make them the dimensions are online at JDparts.com
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digitup2
- 350 crawler
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- Posts: 858
- Joined: Tue Feb 05, 2008 6:36 pm
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by digitup2 » Sun Jun 28, 2009 11:41 am
nice shop and the 350B crawler watch the tracks they look way too tight that is extreme hard on a under carriage life. Digitup!
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BSims66173
- 420 crawler
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- Posts: 41
- Joined: Thu Sep 22, 2005 7:04 pm
- Location: Alabama
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by BSims66173 » Sun Jun 28, 2009 4:28 pm
Yes, the tracks were tight. I had pumped them up and pulled the crawler out of the shop to pressure wash it. I have since taken the tracks off and will be doing alot of build up on the frames and crossmembers. Any idea on how much play should be between the bushings and crossmember? I am thinking only a few thousandths. Thanks for the compliments on the shop. The crawler is a 350c. Still got a lot of work to do. Will try to post more pics as I go. Thanks for all the replies.
Barry
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BSims66173
- 420 crawler
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- Posts: 41
- Joined: Thu Sep 22, 2005 7:04 pm
- Location: Alabama
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by BSims66173 » Fri Jul 03, 2009 7:24 pm
Here is a pic of the rear crossbar being turned after welding up the worn areas. Will be posting more pics later. The reverser rebuild has turned into a complete crawler rebuild almost. Anyway I am having fun and learning alot about these crawlers.
Barry
![Image](http://www.jdcrawlers.com/uploads/p1030296_small.jpg)
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KenP
- 350 crawler
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- Posts: 824
- Joined: Tue Aug 26, 2008 2:05 pm
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by KenP » Sat Jul 04, 2009 4:26 am
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Last edited by
KenP on Sat Jun 01, 2013 6:44 am, edited 1 time in total.
No longer posting on JDCrawlers
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KenP
- 350 crawler
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- Posts: 824
- Joined: Tue Aug 26, 2008 2:05 pm
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by KenP » Mon Aug 03, 2009 4:03 am
deleted
Last edited by
KenP on Sat Jun 01, 2013 6:45 am, edited 1 time in total.
No longer posting on JDCrawlers
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richardprather
- MC crawler
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- Posts: 7
- Joined: Fri Feb 20, 2009 10:06 pm
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by richardprather » Sun Aug 16, 2009 11:15 pm
I just finished a complete rebuild on a 350B and it now works great. I had a very similar problem and after checking both pressures as discribed in the repair manual and both were good found I had problems with the reverse side pack due to wear on the housing the disc set sits in so take a look to see if they are worn because it can pust them only so tight and will slip under a load. All the clutch does in is allow the hyd fluid to recirculate and take pressure off of the maifold. If on directions work and the other doesn't it wouldn't be the clutch. the load for the clutch comes from the spring that returns it. Good luck as it is hard to test on the ground before complete install of motor and hyd pump.
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BSims66173
- 420 crawler
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- Posts: 41
- Joined: Thu Sep 22, 2005 7:04 pm
- Location: Alabama
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by BSims66173 » Tue Aug 18, 2009 12:35 pm
Just a quick note to update everyone following this thread. Haven't had a whole lot of time to work on the crawler lately, but I have got it to the point that I can start it. After having the engine out for about three months, it turned over maybe twice and fired right up. After letting it run for a few minutes, checked the pressure on the reverser and it was reading right at 120psi. It looks like the worn clutch arm in the first pictures was the problem after all. I still have a lot of work to do, but it should have power when I get finished. I will try to post some more pics soon. Thanks to all who have replied. This forum is a very valuable tool and the people here are very valuable resources. Again thanks for all the help up to this point.
Barry
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Tigerhaze
- 350 crawler
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- Posts: 2278
- Joined: Thu Jul 06, 2006 12:13 pm
- Location: West-Central MO
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by Tigerhaze » Tue Aug 18, 2009 1:37 pm
I think I can speak for everyone by saying that you have done an impressive job on this crawler- this is another example that this bulletin board has a lot of talented people who much have more skill and free time than I have
![Laughing :lol:](./images/smilies/icon_lol.gif)
(1) JD Straight 450 crawler dozer with manual outside blade; (2) JD 2010 diesel crawler loaders; (1) JD 2010 diesel dozer with hydraulic 6-way blade; (2) Model 50 backhoe attachments, misc. other construction equipment
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mini kahuna
- 1010 crawler
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- Posts: 301
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- Location: rhode island
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by mini kahuna » Tue Aug 18, 2009 6:07 pm
I have to agree tigerhaze,the skill to tear down a crawler and rebuild it like this always amazes me,great job on bringing back a crawler like this.
that little crawler will do alot of work for it's size and it will repay all your skill and care you are giving it.
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pwright0001
- 40C crawler
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- Posts: 18
- Joined: Fri Apr 13, 2012 1:03 pm
- Location: East Tn
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by pwright0001 » Sun Apr 15, 2012 9:13 am
I know this is an old post , but would really like to know if this clutch lever was creating the problem
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Its not a sin to be poor, Just inconvenient !
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andregrondin
- 440 crawler
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- Posts: 215
- Joined: Mon Apr 18, 2011 6:51 am
- Location: Granby,Québec, Canada
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by andregrondin » Mon Apr 16, 2012 11:59 am
Hi !
Very nice job you did there ! great work !!
Dig in boy !!
J-D 350 straight 1966
model # = T4F3D
serial # = 08883T
J-D 690-B 1980
model # = D690B
serial # = 007364T
Mack RB688S 1990 dumper
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