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  1. I

    Caterpillar 315DL Aux Hydraulics Problem

    There are no active codes in the diagnostic screen. Only a logged code which is 36: 95-3. Machine functions fine just the grapple has no pressure when opening like the solenoid is stuck or something
  2. I

    Caterpillar 315DL Aux Hydraulics Problem

    I will see if I can do that tomorrow, do you think if a solenoid valve went bad then it would throw a code? When the machine is running and operating there are no codes or lights but possibly in the diagnostic screen there may be.
  3. I

    Caterpillar 315DL Aux Hydraulics Problem

    I think I am not near machine currently but that’s what was on my paperwork. The second line may have not came stock with this machine but it is all caterpillar Parts’s. Has two lines like this on each side. The larger line on one side is not flowing all the way causing the grapple to not open...
  4. I

    Caterpillar 315DL Aux Hydraulics Problem

    Yes we have a grapple setting in the computer and even tried other preset settings.
  5. I

    Caterpillar 315DL Aux Hydraulics Problem

    JN01472
  6. I

    Caterpillar 315DL Aux Hydraulics Problem

    Hi, I have a 2008 Caterpillar 315DL that has aux hydraulics that we run a demoliton grapple on. It has 4 lines, two on each side of the stick. This grapple one function opens it and one closes and one turns left the other turns right. I have attached pictures of where it comes out on the boom...
  7. I

    Morbark M18 John Deere throttle Issue

    Hello I have a 2005 Morbark M18 with the John Deere Powertech 4.5L. The Chipper is amazing however just today a cel turned on for SPN 91 - FMI 3 (Accelerator Pedal or Lever Position Sensor 1 Circuit - Voltage Above Normal or Shorted to High Source). Says either the throttle switch or the wiring...
  8. I

    05 Caterpillar 277B Aux Hydraulic Malfunction

    Mark, I am still having this problem. What are the chances it's the aux edu? Is there a way I can test it? Thanks so much for your help so far.
  9. I

    05 Caterpillar 277B Aux Hydraulic Malfunction

    Ok yea that is what I am getting for them. What else should I check? I just replaced the right joy stick a couple months ago so I think I'm ruling that out for the aux hydraulic fault
  10. I

    05 Caterpillar 277B Aux Hydraulic Malfunction

    What resistance should the aux hydraulic solenoids have when I test them. A1 and A2?
  11. I

    05 Caterpillar 277B Aux Hydraulic Malfunction

    Also I checked the resistance from the button under the horn to make sure it is working and it is I get approx 2 ohms
  12. I

    05 Caterpillar 277B Aux Hydraulic Malfunction

    Yes correct. Sadly this machine has been a nightmare. I pulled apart the aux ecu just now and there was some oil somehow in where the connector plugs into the aux ecu so I cleaned out everything and split the ecu and cleaned that out also. now it is back together and I still have the same...
  13. I

    05 Caterpillar 277B Aux Hydraulic Malfunction

    Standard flow model, serial number CAT0277BEMDH02115
  14. I

    05 Caterpillar 277B Aux Hydraulic Malfunction

    Both couplers are seated. What solenoid activates the AF? I checked the closest one near the right joy stick under the cab and I get 1.8-2ohms testing it which I believe is good
  15. I

    05 Caterpillar 277B Aux Hydraulic Malfunction

    Hi I have a 2005 cat 277b. Last time I used the aux hydraulics were about a month ago. I was using my grapple to move a few logs around. I just bought a new brush hog so I began to use it this morning, It worked for about 5 seconds and then stopped, I tried to go the other way on the thumb and...
  16. I

    Cat 277b stuck in park

    The drain holes plugged up with mud under the floor board where the ecu was so I had to vacuum out all the mud. It wasn't up very high but it was up a little higher than the base of the ecu so somehow the seal went bad on it so I split the case and saw water in it. I dried it with a compressor...
  17. I

    Cat 277b stuck in park

    Found the problem. I pulled apart the ecu and it was wet. the seal on it went bad so I dried it with a air compressor and then put a heat gun lightly on it. Everything functions well now. Do you think this will fix it for a while as long as it's dry or is it a temporary fix and I should I get a...
  18. I

    Cat 277b stuck in park

    Ok ignore. I didn't get continuity between 13 and 68. I did the whole troubleshooting guide and everything is ok with the system, does that lead to that the ecu is bad?
  19. I

    Cat 277b stuck in park

    I'm getting connection though when I probe pin 68 and pin 13 so it has to be chaffed somewhere
  20. I

    Cat 277b stuck in park

    Ok so do I proceed with the troubleshooting guide even though I get resistance when I probe pin 68 and pin 13 when I'm not supposed to?
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