track master pin

lp14255 · Post by **lp14255** » Tue Apr 12, 2011 3:58 pm

the manual shows the master pin is different from the others with a snap ring holding it , all the other pins are straight . i have look over and over and haven't found the master pin yet. with the crawlers age i figured the master pin was replaced ,all the pins on both sides look exactly the same no dimple , nothing to show its the master pin. can i just pick any pin and nock it out.

Post by **Lavoy** » Tue Apr 12, 2011 4:13 pm

Depends on if you have interlock rails or not. If not, then you can get by with it, if so, then only way to split is at the master link. I spent hours looking for the master pin on a 350 once. It is there someplace, you just need to find it.
Lavoy

Tigerhaze · Post by **Tigerhaze** » Tue Apr 12, 2011 4:29 pm

It is possible that the master pin was welded into place rather than retained with the clip as originally equipped. However as Lavoy said, look for the master pin because there should be some noticeable difference. Sometimes dirt obscurs it so washing off may be a good first start.

http://www.jdcrawlers.com/messageboard/ ... master+pin

lp14255 · Post by **lp14255** » Tue Apr 12, 2011 4:29 pm

how do i know if i have interlock rails

lp14255 · Post by **lp14255** » Tue Apr 12, 2011 4:57 pm

do i use a big hammer and a pin to knock it out

Tigerhaze · Post by **Tigerhaze** » Tue Apr 12, 2011 5:37 pm

Once you find the master pin, you will likely need a sledgehammer and pin or other type of driver to knock it out. Depending on conditions, you may need to also try heat (rosebud), cold (dry ice), penetrants (kroil, etc), or vibration (air punch or chisel) to get it out. Cussing like a sailor also seems to help

Here are other options for getting them out:

http://www.jdcrawlers.com/messageboard/ ... master+pin

http://www.jdcrawlers.com/messageboard/ ... master+pin

http://www.jdcrawlers.com/messageboard/ ... master+pin

http://www.jdcrawlers.com/messageboard/ ... master+pin

Post by **Lavoy** » Tue Apr 12, 2011 11:08 pm

Cut the ends of the pin out with a torch, let it cool, and it will drive right out.
Lavoy

lp14255 · Post by **lp14255** » Wed Apr 13, 2011 8:21 pm

talk about a pain in my butt , i finally found both master pins now i'm going to fab up a jig with my portable hyd cylinder . thanks again for all the help guys

vestor_guy · Post by **vestor_guy** » Wed Apr 13, 2011 8:52 pm

I have split several JD tracks.

I used a piece of 1" round stock about a foot long with about a 3 foot piece of rebar welded at 90 degrees near the end. One person hold the round stock on the master pin and the other stands on the track with a huge sledge hammer. Nothing short of that was successful. I don't think I would go to the trouble of making a jig for a hydraulic cylinder when it probably will not be successful.

Spray them well with penetrating oil.

Post by **Lavoy** » Thu Apr 14, 2011 9:07 am

Unless you are using a 4" or bigger cylinder, I doubt it will budge it.
The shaft and rebar idea is one way, I have also heard of doing the same thing except with a heavy pice of cable so the guy holding it does not get his has rung so much.
I also saw a commercial one that uses a piece of tube stock clamped to the track pad, then the shaft goes through that so no one has to hold it.
Lavoy

tjdub · Post by **tjdub** » Thu Apr 14, 2011 10:02 am

Someone on here posted a photo once of a jig they made by drilling a hole in a 2x6 (or two) and just clamped it on to the track to hold the punch.

lp14255 · Post by **lp14255** » Wed May 11, 2011 7:50 pm

i got the master pins out with alittle pb blaster and a big sledge hammer thaks again everyone

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