Rebuilding a old manual 6 way (6310) blade

[wfoidaho]

I was taking stock of my 6310 blade while turning the cutting edges on the blade today. It looks like sometime in the not to distant future I will be needing to rebuild the pins and bosses on the ends and center pivots of the blade. Since the parts are made from that precious John Deere metal know as "unobtanium" I thought I'd quiz the forum for some expertise on what to do to get these pieces back into shape. Has any body out there performed a rebuild on a 6310 blade?

I was considering over-boring the bosses and inserting hardened bushings where the wear seems to be the most pronounced and replacing all of the pins. Has any one done this

[lurch85]

Don't want you to think that noone is paying attn. I've done a few different things, welding up and using a rotary file, and also overboring and bushing. But not anything that I'd recommend for sure on a big scale. It can be done. Curious to see what (if any) other comments everybody makes.

[notmeu]

I purchased bushing stock from www.mysteelyard.com and simply cut and welded on the new for my Greenville railcar bull blade on my 420. I can't say what a 6310 blade looks like though. I hope that this helps!

[kilohertz]

Is this your blade style, manual, wedges and 3 holes in the support frame?



If so, when I replaced one of my pins, I used heavy wall pipe that just fit nicely in the holes. It has stood up for over 10 years now without giving. Cheap and I had it in stock. The ones in the pic are the original solid pins, which look like they could use replacing.

Cheers

[wfoidaho]

Yes, Kilohertz that is what my blade looks like. I like the pipe trick but I think that the pin sockets are egged out beyond pipe thickness. Center pin and corner/angle arm pins need to be re-bushed.

After the Clutch repairs are complete , teardown this weekend, I'll look at working over my blade. Guaranteed to snow 2 feet as soon as the dozer heads into the shop.

[kilohertz]

OKay Idaho, Any chance you could post a few pics of the problem areas? Would be easier to see what is going on.

Cheers

[wfoidaho]

Ill get some pics up this weekend if I get time after the clutch work. The 350 will get a good wash prior to going into the shop. As it is now you would need xray vision to see through the mud and grime.

[wfoidaho]

Well, here's a few photos of the blade and the pin points I'm looking at rebuilding.











Pics of the bottom pins were out of focus but bottom pin bosses are worse than the top. The center pin is the one that I'm going to tackle first since it will get the blade swinging true when it is angled. Currently, its a PIA to line up the arms with the holes in the C frame. Anybody have any thoughts or insight when working with the cast steel assemblies?

[kilohertz]

Hey, nice looking machine. Very clean. Having it all apart in a nice big shop sure makes it look easy. Your pins don't look that bad...about the same as mine. I'm not good enough of a machine operator yet to notice it.

Looking at your pictures and I noticed you have an interesting exhaust arrangement. Could you post a few more pics of that please? I like it. Getting rid of that nasty smoke that always seems to find my eyes would be nice. Also, is that the 3310 manual winch, or 3315 power winch? Mine is the 3310 manual, and in need of a rebuild.

Cheers

[wfoidaho]

Thanks! I was a topless shop mechanic for many years. Now I'm spoiled, big shop Jet mill/drill, press and 17" Lablonde lathe. Hard work really does pay well.

This dozer is going to be used as a "scratch" cat by my son. He's just getting started doing some weekend logging for some small private land owners. Looks aren't everything but when you are starting out first impressions are priceless.

Even though the pins aren't shot I thought it would be a good idea to repair them before he starts trying to wrestle a few logs around. I'll get some more pics when I get the blade disassembled. the center pivot will be first then on to the corners. The way our weather is going we'll have plenty of time for GM before the 350 heads out.

I'll get a couple of pics of the exhaust in a day or so. That is a pretty typical exhaust arrangement for a JD dozer in these parts. It's just a solid exhaust pipe with a limb deflector on the ROPS. Winch is a 3315 and works like a champ.

[Jd450/6-way]

would like to know how you do
Im going to rebuild and modify my 6410 blade to full hydraulic six-way in the spring. just picked up a used t bar valve two months ago.

[kilohertz]

Hey Idaho,

Any updates on your machine? Did you get the pins repaired/rebushed? Would still like to see more pics of your machine.

Cheers

[CuttingEdge]

With a lathe you know it is easy to over-turn anything in the round because when you make a cut on one side, you really are making a cut on the other side as well since the stock is turning. Well it works the same way when filling something.

Your pins do not look that bad to me. Yes they are egged out, but filling the inside with bushings, pipe or weld will significantly reduce the slop.

Welding and line boring is the best answer and there are many places that do it locally, but it is an expensive option

I have an inside blade on my 350D and with all the wear issues I intend to replace many pins and bushings with Extenders. Like you I am a machinist/welder so I plan to make my own instead of buying them. Unfortunately I just cannot seem to get my dozer out of service long enough to do so. Also like you I log with mine commercially.

Here is a youtube link that some parts of your outside blade could be rebuilt by using.

https://www.youtube.com/watch?v=nHjDwfwIZFk