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More stuck pins.
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<blockquote data-quote="Jyuma" data-source="post: 47395" data-attributes="member: 4393"><p>Hmmm... It seems every time you answer one of my questions you give me 3 more things to think about. <img src="https://www.skidsteerforum.com/DesktopModules/AdverForums/ImageGallery/emotion-1.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>Below is a picture of the pivot point pin, bushings and washers used to connect the end of dipper stick to the bucket. The first thing you need to know is that there is not a single grease Zerk anywhere to be found and there is no way to even get any grease into what should be a critical pivot point. I suppose this is the reason the pin was frozen solid inside the sleeve to begin with.</p><p>Take a look at the picture... viewing from left to right we see the left end of the pin has a large washer welded to it. When the pin is inserted through the bushing in the bucket and then through the end of the dipper and then finally through the opposite side bushing on the bucket, this welded washer will come to rest against the left side of the bucket bracket and become captive. (note: the bucket is not shown).</p><p>Moving to the right along the pin we come to another washer. This washer is used as a spacer between the bucket bushing and the end of the dipper stick. Next we see a bushing. This bushing is a split bushing presumably so it can be pressed into the end of the dipper stick. Next we see a sleeve... this sleeve has the same ID as the bushing but the OD is much smaller. I assume the function of this sleeve is to take up the space between the two split bushings that are pressed into the end of the dipper stick.</p><p>Next there is a second bushing followed by another washer that acts like a spacer between the dipper stick and the other side bucket bushing and then finally a bolt goes through the outside of the bucket bushing and through the pin securing the entire pin assembly in place. </p><p>I say again... there is no provision of any kind for greasing this pivot point. What would be the point in using precision pins and mating surfaces when the pivot cannot be greased? How can that be? I can understand no grease on the bucket bushings... the pin is bolted to the bucket bushing and cannot rotate inside so there is no need for grease at that point but surely at least the locations where the pin goes through the two bushings inside the tip of the dipper stick should be greased... but there is no way to grease those points short of removing the pins and forcing grease in.. </p><p> </p><p> <img src="ftp://www.edwardluna.com/BHDipperpin3.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p> </p><p>Below is a photo of the end of the dipper stick where the bucket attaches... no grease Zerk's here either. Note: the end looks the same no matter which direction I snap the photo. There just isn't any way to grease this critical (I would think) pivot point. </p><p><img src="ftp://www.edwardluna.com/BHDipperStickEnd.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Jyuma, post: 47395, member: 4393"] Hmmm... It seems every time you answer one of my questions you give me 3 more things to think about. [IMG]https://www.skidsteerforum.com/DesktopModules/AdverForums/ImageGallery/emotion-1.gif[/IMG] Below is a picture of the pivot point pin, bushings and washers used to connect the end of dipper stick to the bucket. The first thing you need to know is that there is not a single grease Zerk anywhere to be found and there is no way to even get any grease into what should be a critical pivot point. I suppose this is the reason the pin was frozen solid inside the sleeve to begin with. Take a look at the picture... viewing from left to right we see the left end of the pin has a large washer welded to it. When the pin is inserted through the bushing in the bucket and then through the end of the dipper and then finally through the opposite side bushing on the bucket, this welded washer will come to rest against the left side of the bucket bracket and become captive. (note: the bucket is not shown). Moving to the right along the pin we come to another washer. This washer is used as a spacer between the bucket bushing and the end of the dipper stick. Next we see a bushing. This bushing is a split bushing presumably so it can be pressed into the end of the dipper stick. Next we see a sleeve... this sleeve has the same ID as the bushing but the OD is much smaller. I assume the function of this sleeve is to take up the space between the two split bushings that are pressed into the end of the dipper stick. Next there is a second bushing followed by another washer that acts like a spacer between the dipper stick and the other side bucket bushing and then finally a bolt goes through the outside of the bucket bushing and through the pin securing the entire pin assembly in place. I say again... there is no provision of any kind for greasing this pivot point. What would be the point in using precision pins and mating surfaces when the pivot cannot be greased? How can that be? I can understand no grease on the bucket bushings... the pin is bolted to the bucket bushing and cannot rotate inside so there is no need for grease at that point but surely at least the locations where the pin goes through the two bushings inside the tip of the dipper stick should be greased... but there is no way to grease those points short of removing the pins and forcing grease in.. [IMG]ftp://www.edwardluna.com/BHDipperpin3.jpg[/IMG] Below is a photo of the end of the dipper stick where the bucket attaches... no grease Zerk's here either. Note: the end looks the same no matter which direction I snap the photo. There just isn't any way to grease this critical (I would think) pivot point. [IMG]ftp://www.edwardluna.com/BHDipperStickEnd.jpg[/IMG] [/QUOTE]
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