Backing off idler wheel Case 450 crawler loader

Case450

Member
I repaired a leaking seal in my right hand final drive. Put it all back together....kind of.

I cannot get the master link back in. The chain won"t line up.

I also cannot seem to back off the idler wheel. If I could back off the idler a touch more I"d have the slack needed to get the links to line up perfectly to reinstall the master pin.

Does anyone have any ideas? The dozer is in the shop so there are no trees I can run into or whatever. I put a 6x6 between the bucket and the idler and dumped the bucket but it doesn"t move that idler. Is there a way to hook a come along to it to winch it backwards or what? BTW I removed the zerk fitting from right behind the idler to let the grease out and allow pressure to relieve (no grease ever squirted out when I removed it anyhow). If yall have an idea or trick I could use to get this darn thing buttoned up I"d really appreciate it.

Thx guys.
 
most guys but a block or pin in the sprocket teeth on top and then put the machine in reverse to have the track pull the idler back. If the zerk is plugged i would completely remove it to let the grease out.
 
The zerk is completely removed. Truth be told I don"t even know how the hell I got the master pin removed if the idler wasn"t backed out sufficiently. Lord knows that was a fight in itself.
 
How much slack do you need? If it's not a huge amount, what you need to do is this. If you don't have the master pin at the rear, drive sprocket, you need to get it there. You need it on, and over the top of the sprocket until it's at around 7 o'clock when facing the sprocket. From there put a jack under the edge of the grouses on one of the track pads on the other/lower end of the track. This can be a PITA with a loader because the grousers aren't that tall, but it can be done if you are on dirt where the jack can set at a bit of an angle and dig in. If on hard ground/concrete, it can still be done but it's just not as easy. From there, if you backed the machine up to get the master pin in position then the sprocket should be pulling all of the slack out of the top side of the track. With the machine pulling the slack out of the top end, and the jack hitting the ground and picking up the lower end, you should be able to get the ends together relatively easily. I've done it by myself many times over the years and it can be done by yourself, but if you've got to drive in the master pin when everything is lined up, it pays to have help. Good luck.
 
Under the grease fitting there is a check valve,

requires a 3/4" deep socket to remove, then it

will bleed off.

george
 
that's what I was lookin' for @GeorgeMD

I knew I was forgetting something. I had split the track before with the mechanic and I knew I was overlooking something but I couldn't get it figured.
 
I failed to remove the check valve. thank you everyone for your help. I'm heading to the shop shortly to get this darn thing buttoned up!!
 
I got the machine all back together using a variety of techniques offered here. lol Went together like a dream.

I think my checkvalve is shot...it doesn't seem to take any grease or bleed any grease.

Well I mean I removed the checkvalve and some grease came out and I got the slack I needed and got 'er buttoned up. Yet I wanted to add a bit of tension to the chain but the zerk fitting (I replaced with a new one and another new one after that) won't take grease at all.

Is the checkvalve bad or might it be something else in there?
 
When you were attempting to get the grease out did you try to poke the zerk hole,if you did you have probably damaged the valve,the ball may have been pushed down through the spring and is blocking the outlet,take the valve out and put the grease gun on and give it a stroke,make sure it is pointed away from you and anyone else,if it is blocked the end of the valve can come out like a bullet,point it into a box or can to catch the parts,Case only sell the whole valve,you can see the order in the parts drawing,all the spring has to do is keep the ball valve pushed up against the inlet while the track is been pumped up the pressure of the grease trying to get back out seals it the rest of the time,if it is damaged you can reshape it or use a similar spring.
AJ
mvphoto7771.jpg
 

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