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ajk
01-12-2007 01:58:03
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Re: masterlink on komatsu D21 dozer in reply to richard Overton, 01-11-2007 21:28:01
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Hard luck Richard,have you tried opening the adjuster relief valve and pushing the idler back as far as it will go to get more slack,get all the slack you can to the back,then with a long bar going under the track to the top of the sprocket get a second person to slowley reverse the sprocket on that side,this works better if you can jack up the back.if you have to remove the master pin it will not be easy to get it out as it is an interference fit,you will need a decent piece of steel bar a little bit smaller than the pin,weld a handle to it so it can be held safely,a big sledge hammer and with the track held solid try to drive it out,you may even need to heat the eyes if its very tight,there are two types of tracks, the sealed and lubricated type that does not have a master pin but a split link instead and all you need to do is find the split link and remove that pad,the type that I think you have are known as the sealed type and have a master pin,it will be the one with a dinple in the centre or a raised centre,it will differ from the rest of the pins,cleans the ends and look for the odd one,if you are not used to working with tracks watch your fingers getting chopped off between the pads and wear eye protection while doing any hammering,go to the link below where I posted a drawing of the split link,master pin and dust seals.
AJ
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