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  1. Chains&Binders

    caterpillar 259D3

    Quick update. Caterpillar is replacing the hydraulic pump. 10k on a roll of dice. Tech tore the pump down and they don’t see any particular issue but after swapping the lines from pump to the opposite sides the problem followed. Swash plate / internal pump issue is all that was left...
  2. Chains&Binders

    caterpillar 259D3

    I really hope to have more time soon to focus on this Cat SIS 2.0 and CAT ET. I have found our assets list and poked around a little but no service manual access currently. Just maintenance and operation manuals. Possibly parts ordering but I prefer the pro’s for sure but I’ve pulled my own #’s...
  3. Chains&Binders

    caterpillar 259D3

    Nige. I want to personally thank you for your input. I couldn't have even begun without your schematics. After the big changeover at CATERPILLAR and their system updates I hope to get CAT software in house.
  4. Chains&Binders

    caterpillar 259D3

    update coming. Was not the sensor or sub harness after i replaced therm. Had voltage and continuity from main harness. So CAT road service came out and after running lots of tests is suspicous of the Hydraulic pump. CAT has had a cyuple main harness issues, but after an overlay eliminating the...
  5. Chains&Binders

    caterpillar 259D3

    The local dealers are updating to a new system. Not really up to speed on what it is exactly but i did receive an email that there may be interruptions. Hopefully They can help get us ( the business ) in the right direction. We have enough machines that justify having service data and the...
  6. Chains&Binders

    caterpillar 259D3

    OK.. I see . I was mistaking the service software for the service informastion etc. Not the files to update ECM parameters etc. I can see now how that makes sense. So a couple things I'd like to figure out is what I need to do to actually scan the ECM from the deutch pin inside fuse box and also...
  7. Chains&Binders

    caterpillar 259D3

    THIS IS VERY HELPFUL! Just spent the last hour trying to get Service information with no luck. Clearly willing to pay and saw monthly and annual subscription options but I cant navigate it myself I guess. Might be me? We do have a CAT account with an assets list and related info but not able to...
  8. Chains&Binders

    caterpillar 259D3

    any chance that the test procedure from another thread is different than this particular machine? I left the dang schematic on my desk. So I cant compare if the trouble tree is any Can you use the PIN from this machine for some info ? Im going go take a look at the cost and possibility that I...
  9. Chains&Binders

    caterpillar 259D3

    Thanks Nige. Appreciate your input. So. oddly enough the two signals originate from a single sensor? i see in a previous schematic for this code posted shows 4 wires. a 8volt supply and a return on pins 1 and 2 then the pins 3 and pin 4 are signal #1 and signal #2. One sensor. ( 4 wire / 6 pin...
  10. Chains&Binders

    caterpillar 259D3

    CAT0259DAW////CW917475 OK. So local CAT service is 3 weeks out or so. I'm the mechanic and figured I will give it a look. Cant hurt with an extended wait for Cat service so I pull the Event and diagnostic codes from screen inside machine. 2687-8 right drive motor speed sensor #1 abnormal...
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