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Bobcat 630 Reclamation
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<blockquote data-quote="peebeeaitch" data-source="post: 63883" data-attributes="member: 8318"><p><u>2 Mar 2013</u></p><p>Spent the late night ordering parts for the coming re-assembly. More money than I care to spend and I think I have the electrical stuff ordered.</p><p>I am still lost as to the wiring for the external regulator and rectifier. I have looked at more sights than I can remember looking for instructions on how to buzz out the system, without success. I will, for the moment, wait on this and continue the mechanical assembly.</p><p><u>3 Mar 2013</u></p><p>After learning to MIG/MAG I decided to try my hand at TIG. Of course, the chap that was teaching me helped out by choosing really thick pieces of material to learn on. I forgot this morning that steel that is used as a airflow director is probably quite thin (the weight should have been obvious as well). To make things worse, the crack I was repairing was in very rusted (equals missing thickness) steel.</p><p>I started off confidently and was quite pleased with the results through the helmet. I was less pleased with the results without the helmet. The soft glow I was seeing in the helmet was the puddle of molten metal that had fallen through the massive hole I had successfully burned in the cover. Ok, so the short version is that I managed to, sort of, sort it out:</p><p><img src="http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>This is the painted, reassembled part. (Other side of the plate not shown for reasons of pride).</p><p>This is the motor with painted covers re-installed:</p><p><img src="http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_2.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>I couldn't find a welder today so the manifold to silencer bolts are still there waving at me.</p><p>While at it, I grabbed the sand paper, spray bottle and elbow and set out getting the engine bay semi-decent:</p><p><img src="http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_3.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>I cannot re-install the motor till I get the new engine vibration mounts. To the best of my ability, I have measured the mounts and I think they're all the same - pump, ROPS and motor.</p><p>This is what I've bought:</p><p><img src="http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_31.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>(I got them from <a href="http://www.vibrationmounts.com/Store.asp?Page=Products7.htm" target="_blank">here</a> - including complimentary LED light) as the search for Bobcat Part #6560633 yielded only vastly over priced second hand results.</p><p>I decided that I now had had enough of explosion and wanted to start the re-assembly. As this whole sop story has started with the motors and the chaincase still waited, I decided to clean it out. A couple of litres of "Zecol Parts Cleaning Mineral Spirits Solvent" were dumped in the chain case. A swish around and the suck bucket, plus some (rolls of) "Scott Shop Towels" gave me this:</p><p><img src="http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_4.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p><img src="http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_5.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p><img src="http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_6.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>Honestly, the Suck Bucket can take credit for 95% of this. It really is an amazing tool.</p><p>Right. A motor wiggled in and the chain cleaned and re-wrapped around the front sprocket. Master link sprayed (as per the manual and someone on this forum who suggested it) and inserted, and crestfallen despair.</p><p>I have seen before on cheap chain links, where the studds are marginally short, that one cannot get the lock plate on. I didn't want to struggle inside the chain case where space is a bit limited so decided to check what the master link was like on the other chain:</p><p><img src="http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_7.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>How am I supposed to get the lock tab on?</p><p>This is the marking on the chain (a question I asked a while ago and confidently answered):</p><p><img src="http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_8.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>So, yes, a Bobcat 630 does use a #60 chain. However, the "H" stands for "Heavy". Heavy chains use a link plate thickness from the chain size above (a fact discovered on the net) - to quote:</p><p>"Heavy Series chains are not necessarily stronger than Standard Series chains, but the thicker link plate material provides an increase in fatigue resistance for those drives subjected to heavy shock loads, multiple stops/starts or reversing."</p><p>This comes from <a href="http://bobcat.thesouthpole.co.za/Manuals_And_Information/HeavyChainDimensions.pdf" target="_blank">here</a>.</p><p>I have ordered the "Heavy Series Chain Link"...</p></blockquote><p></p>
[QUOTE="peebeeaitch, post: 63883, member: 8318"] [U]2 Mar 2013[/U] Spent the late night ordering parts for the coming re-assembly. More money than I care to spend and I think I have the electrical stuff ordered. I am still lost as to the wiring for the external regulator and rectifier. I have looked at more sights than I can remember looking for instructions on how to buzz out the system, without success. I will, for the moment, wait on this and continue the mechanical assembly. [U]3 Mar 2013[/U] After learning to MIG/MAG I decided to try my hand at TIG. Of course, the chap that was teaching me helped out by choosing really thick pieces of material to learn on. I forgot this morning that steel that is used as a airflow director is probably quite thin (the weight should have been obvious as well). To make things worse, the crack I was repairing was in very rusted (equals missing thickness) steel. I started off confidently and was quite pleased with the results through the helmet. I was less pleased with the results without the helmet. The soft glow I was seeing in the helmet was the puddle of molten metal that had fallen through the massive hole I had successfully burned in the cover. Ok, so the short version is that I managed to, sort of, sort it out: [IMG]http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_1.jpg[/IMG] This is the painted, reassembled part. (Other side of the plate not shown for reasons of pride). This is the motor with painted covers re-installed: [IMG]http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_2.jpg[/IMG] I couldn't find a welder today so the manifold to silencer bolts are still there waving at me. While at it, I grabbed the sand paper, spray bottle and elbow and set out getting the engine bay semi-decent: [IMG]http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_3.jpg[/IMG] I cannot re-install the motor till I get the new engine vibration mounts. To the best of my ability, I have measured the mounts and I think they're all the same - pump, ROPS and motor. This is what I've bought: [IMG]http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_31.jpg[/IMG] (I got them from [URL='http://www.vibrationmounts.com/Store.asp?Page=Products7.htm']here[/URL] - including complimentary LED light) as the search for Bobcat Part #6560633 yielded only vastly over priced second hand results. I decided that I now had had enough of explosion and wanted to start the re-assembly. As this whole sop story has started with the motors and the chaincase still waited, I decided to clean it out. A couple of litres of “Zecol Parts Cleaning Mineral Spirits Solvent“ were dumped in the chain case. A swish around and the suck bucket, plus some (rolls of) “Scott Shop Towels“ gave me this: [IMG]http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_4.jpg[/IMG] [IMG]http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_5.jpg[/IMG] [IMG]http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_6.jpg[/IMG] Honestly, the Suck Bucket can take credit for 95% of this. It really is an amazing tool. Right. A motor wiggled in and the chain cleaned and re-wrapped around the front sprocket. Master link sprayed (as per the manual and someone on this forum who suggested it) and inserted, and crestfallen despair. I have seen before on cheap chain links, where the studds are marginally short, that one cannot get the lock plate on. I didn't want to struggle inside the chain case where space is a bit limited so decided to check what the master link was like on the other chain: [IMG]http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_7.jpg[/IMG] How am I supposed to get the lock tab on? This is the marking on the chain (a question I asked a while ago and confidently answered): [IMG]http://bobcat.thesouthpole.co.za/BloodSweatAndTears/2013-03-03_8.jpg[/IMG] So, yes, a Bobcat 630 does use a #60 chain. However, the “H“ stands for “Heavy“. Heavy chains use a link plate thickness from the chain size above (a fact discovered on the net) - to quote: “Heavy Series chains are not necessarily stronger than Standard Series chains, but the thicker link plate material provides an increase in fatigue resistance for those drives subjected to heavy shock loads, multiple stops/starts or reversing.“ This comes from [URL='http://bobcat.thesouthpole.co.za/Manuals_And_Information/HeavyChainDimensions.pdf']here[/URL]. I have ordered the “Heavy Series Chain Link”... [/QUOTE]
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