420 masterlink pin

General help and support for your Lindeman through 2010 John Deere crawler
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420 masterlink pin

Post by Weekendcooker » Sat Jul 10, 2021 8:46 am

help , lol. Got my final drive replaced , sprocket back on , now I'm battling the track and masterlink , i cant get the nuts loose on the inside to loosen the idler wheel , I've tried kroil and pb blaster but nothing is breaking them loose , got the outside ones loose. So I've tried ratchet straps and come a long to get the link close to where i can put the master pin in but still about a 1/4 inch shy , any tricks ?

Buckhorn
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Re: 420 masterlink pin

Post by Buckhorn » Sat Jul 10, 2021 1:40 pm

An easy way to remove the adjusters is to remove the 2 bolts that hold the gib plate on the bottom.
They have a 15/16 head, and are either side of the gib where the 2 nuts are tightened against.
Then the whole spring assembly will come right off, and you can get it up on a bench to loosen
the nuts.
Pete

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Re: 420 masterlink pin

Post by Weekendcooker » Sat Jul 10, 2021 4:03 pm

Ok thanks Buckhorn , I'll look into it

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Re: 420 masterlink pin

Post by Weekendcooker » Sun Jul 11, 2021 4:16 pm

Buckhorn wrote:
Sat Jul 10, 2021 1:40 pm
An easy way to remove the adjusters is to remove the 2 bolts that hold the gib plate on the bottom.
They have a 15/16 head, and are either side of the gib where the 2 nuts are tightened against.
Then the whole spring assembly will come right off, and you can get it up on a bench to loosen
the nuts.
Pete
Are they under the tracks Buckhorn , cuz i dont see anything that you described , just wondering where the 15/16 bolt heads are , cuz the bracket that has the adjustment nuts on it looks like its all one piece , like part of the side rail.

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Re: 420 masterlink pin

Post by Lavoy » Sun Jul 11, 2021 10:10 pm

Bolts are very close to either end of the axle. If not, something has been seriously modified.
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Buckhorn
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Re: 420 masterlink pin

Post by Buckhorn » Mon Jul 12, 2021 6:31 am

Like Lavoy said, they are on either side of the idler axle. They hold the plate that has the hole in it for the threaded rod/bolt onto the bottom of slide rail. They are basically either side of the double nuts on the threaded rod. Be careful of not losing any shims.
Pete

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Re: 420 masterlink pin

Post by Weekendcooker » Sun Jul 18, 2021 7:58 am

Ok , now i see what yur sayin Lavoy and Pete , prior owners have put different size head bolts on a few , thats what was throwin me off , so they are the 2 head bolts that are like an inch or inch and a half away from the grease zerk for the front idler wheel , and if thats the case ive already broke one and broke a half inch breaker bar so after i get both sides off depending on how many more bolts i break I'm going to need to find more of those size bolts. Thanks for the help gentlemen.

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Re: 420 masterlink pin

Post by Lavoy » Sun Jul 18, 2021 9:17 am

Common bolts, and use an impact wrench, the vibration does way more on rusted bolts than brute force with hand tools.
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Re: 420 masterlink pin

Post by Weekendcooker » Sun Jul 18, 2021 9:19 am

Ok , thanks Lavoy

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Re: 420 masterlink pin

Post by Lavoy » Sun Jul 18, 2021 9:45 am

Heating the casting they thread into will help greatly too.
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Re: 420 masterlink pin

Post by Weekendcooker » Sun Jul 18, 2021 3:49 pm

Ok thanks

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Re: 420 masterlink pin

Post by Weekendcooker » Sat Jul 24, 2021 4:33 pm

Ok , got the left outside gib plate off so i can take the big spring with adjustment nuts off and clean up , someone put different size nuts and bolts on it , the inside gib plate seems like the bolts are pressed in maybe cuz they had nuts that came off from the top ?

Buckhorn
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Re: 420 masterlink pin

Post by Buckhorn » Sat Jul 24, 2021 6:12 pm

I think the gib plate holes are threaded, so I can't imagine what's going on with the inside one.

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Re: 420 masterlink pin

Post by Weekendcooker » Sat Aug 07, 2021 5:41 pm

Buckhorn wrote:
Sat Jul 24, 2021 6:12 pm
I think the gib plate holes are threaded, so I can't imagine what's going on with the inside one.
So i got the tensioners and gib plates off and Buckhorn yur correct , they are threaded , but someone put different size bolts in them and hogged out the inside so i went with the next size up and used my tap and die set on them and rethreaded them , now i just have to get the correct size bolts. I did notice the idler wheel had alot of play in it on the axle so i greased it thinking that may take up some of the slop but it didnt so then i loosened that half inch bolt on the axle and tried to tighten the axle , the 1 1/4 inch nut on both sides but that didnt tighten it up , is there bearings that i should replace , now would be the time since i have both adjustment springs off ? Thanks in advance.

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Re: 420 masterlink pin

Post by Lavoy » Sun Aug 08, 2021 9:41 am

Idler is bushings, I normally stock the bushings, out of stock on the seals.
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