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  1. 6

    a/c equipment questions

    Yes, lantraxco is absolutely correct, oxidization creates its own heat. Heat is a byproduct of all oxidization processes. Rusting is an oxidization process that is used in hand warmer packets using an oxidizer with a very fine iron powder. Given an oxygen rich environment effectively lowers a...
  2. 6

    Cat 740

    Cat is the roughest riding ADT in my experience. Komatsu is a lot smoother riding than the Cat. Volvos are better too.
  3. 6

    Linkage Pins and Bushings (FAQ) Chromed/Rebuilt/OEM/Aftermarket/Custom Fabricated

    I have some general questions on linkage/bucket/boom/articulation/hydraulic cylinder pins and bushings and the metallurgy that goes in to them and I would like to get from other members their knowledge on this. If I am replacing the linkage pins on my equipment I have many options such as to...
  4. 6

    666 rubber tire pushers

    You might try the resources of an University Library. Many archive many industry magazines going back to the earlier part of the last century and if the don't have it they could tell you which Universities would have that.
  5. 6

    What is new and notable at 2014 Conexpo/Con Agg Las Veges? Pics?

    What is new and notable at 2014 Conexpo/Con Agg Las Veges? Pics?
  6. 6

    Bending your boom.....

    I remember seeing a picture of an excavator stick torsionally twisted because of offset loading. Maybe I seen the picture on one of these forums. I cannot remember. The clamping force of the thumb and the lifting force of the stick may exceed the torsional capacity of the stick on an...
  7. 6

    koehring 1466 in action 400,000 plus pound machine pound machine

    In engineering terms with these slurry walls what is to keep the contamination going underneath the bottom of the slurry walls?
  8. 6

    Reducing tire losses.

    My current employer runs a fleet of 631s. We have been loosing a lot of tires. Nearly 100% of the rock in the aggregate we are working in is rounded with exception of the ones busted up by cutting edges and dozer tracks. I was running a 631 the other day that was being top loaded by an...
  9. 6

    parts label tags

    I get thin sheet plastic sign material from the hardware store and cut it up in to smaller pieces and use a stationary hole punch to put holes in to it. I use a sharpie to write on to it and use either tie wire or zipties to attach it to my parts. This is durable and I can steam clean parts...
  10. 6

    Treasure Trove of Pictures of Old Equipment Working in a foreign land

    On picture 6,426 (they are numbered in numerical order) is this how the pony motor on a DW21 was hand crank started?
  11. 6

    Treasure Trove of Pictures of Old Equipment Working in a foreign land

    I ran across the following link that has many excellent pictures...
  12. 6

    Euclid Belly Dumps

    Did you get any pictures gd10r?
  13. 6

    Dumpbed?

    I would fabricate a piece on to the bottom of the dumpbed subframe so that it makes full contact when it is mounted to the truck frame and then you can bolt plates on to the sides to tie the two together. Before that however, how much of an over the road truck is this? A typical over the road...
  14. 6

    Euclid Belly Dumps

    Cat-Athey Bellies PW660 100 Ton At the Ritchie Brothers Auction this Thursday in Gillette, Wyoming, there are a number of Athey PW660 setups that are set up to be pulled by Cat triple sevens. If you have a Ritchie Bros. account you can see the pictures of lots 77, 78, 80, & 96 or look at the...
  15. 6

    Caterpillar Scraper Apron Link and Pin Holes

  16. 6

    Caterpillar Scraper Apron Link and Pin Holes

    More 621 Pictures
  17. 6

    Caterpillar Scraper Apron Link and Pin Holes

    StanRauus, Could I get a copy of those installation instructions from you? My parts guy could not find any listing for the my engine serial number on the 3306 of my other rig. He said that he had never ran in to anything like that before and he had been working the Cat parts counter for...
  18. 6

    Caterpillar Scraper Apron Link and Pin Holes

    Here are some pictures for you Gavin. I will provide more later.
  19. 6

    Welding on Caterpillar scraper - cast section.

    I have a small crack on two different 621 (A) scrapers that is nearly identical on each machine. The crack is on the cast section on the top of the differential/transmission housing. I spoke with my local Cat dealer about the metallurgy of this and they said that they did not know and that...
  20. 6

    Caterpillar Scraper Apron Link and Pin Holes

    Gavin, I agree with you that the top hole has less of chance of having the link bend. I disagree with you as far as a difference of mechanical advantage. Think of a piston pushing down on to a crankshaft via a connecting rod. The piston wants to push straight down. When the crankshaft throw...
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