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  1. Joe Zhao

    299D2XHP Not Cranking

    Still haven’t figured out the root cause of the problem? Shouldn’t take more than an hour or two to figure out. There are only few things that can cause no crank: 1 battery 2 relay 3 fuse 4 solenoid on the stater 5 starting motor 6 key switch (unlikely based on your description)
  2. Joe Zhao

    299D2XHP Not Cranking

    You don't need a manual for this, its simple wiring which applies to all CAT 299D2. I asked you to test the starter using a jumper cable (thick car jumper cable that can handles say 100-200 amp), did you test it? The CAT part number of this starter is: 377-6967. You probably didn't, or you...
  3. Joe Zhao

    299D2XHP Not Cranking

    At 'cranking mode' without the charger, the Solenoid 11.48v is okay. with the charger, battery 17.7v - this is too high voltgage and your Solenoid is not receiving the needed voltgage to start. Battery terminal voltage at 13-14v is good , but but should not exceed over 14.5v, with or without...
  4. Joe Zhao

    299D2XHP Not Cranking

    First, your battery charger output voltage a little too high (17.7v) Secondly, looks like your solenoid is not getting the needed voltage in the 'crank mode' (as you indicate only 0.08v). Looks like there is some connection problem. Assuming no broken wire (sometimes rats get into a machine and...
  5. Joe Zhao

    299D2XHP Not Cranking

    Did you measure the actual voltage acrosst the battery when you turn the crank key and saw 'Voltage Above Normal'? Its possible that your charger try to charge the battery with a constant current, but the battery internal resistance is high, so the charger had to automatically 'raise' the...
  6. Joe Zhao

    299D2XHP Not Cranking

    The battery seems weak. I would suggest do following: 1) use a jump starter (jump starter such as this one: https://www.amazon.com/dp/B0BSCTDGY2/ connect it to the battery and try again to see if it cranks. If yes, replace the battery. If no, or if you don't have a jump starter, go next step...
  7. Joe Zhao

    CAT 299D2 XHP attachment multi pin plug

    I made this cable, cost of material: ~$140 Plug, $45 https://www.amazon.com/dp/B082591FCK Wire: $43 https://www.amazon.com/gp/product/B0CX9CNKRX/ Connectors: $19 https://www.amazon.com/gp/product/B0BYZ7HTRH/ Crimp tool: $32 https://www.amazon.com/gp/product/B096K6FBXF/
  8. Joe Zhao

    CAT 299D2 XHP attachment multi pin plug

    Exactly what I needed. Thank you very much!!!
  9. Joe Zhao

    CAT 299D2 XHP attachment multi pin plug

    I need help on the multi-pin wiring diagram for my 2018 CAT 299D2 skid steer, S/N DX202439. Thank you very much!
  10. Joe Zhao

    Cat 259d low voltage

    Newly ordered alternator has arrived, after taken out old one and putting in the new one, the low voltage warning message is gone.
  11. Joe Zhao

    Cat 259d low voltage

    I am also having the "Low System Voltage" issue with my CAT 299D2. I don't know what exactly went wrong, but I guess most likely the alternator. So I bought a generic replacement one from Amazon and will see if the message goes away after replacing ther alternator (CAT part# 377-6966)
  12. Joe Zhao

    JCB JS220LC was working but won't restart after shutting down for 2 minutes

    Most electrical relays are in the backside of the driver seat, where the fuse panel is located.
  13. Joe Zhao

    Cat 299D2 XHP hydraulics overheating

    Just checked the ratiator and hyd oil cooler, they all appears fine to me. Please take a look photos below taken this morning, do they look good to you as well? Engine radiator: Hydraulic cooler: 3) Air condition radiator Temperature readings starting the engine in the morning:
  14. Joe Zhao

    Cat 299D2 XHP hydraulics overheating

    I bought a Cat 299D2 XHP used several months ago. It is a 2018 build with about 1400 hours on it. I am just starting to use it now with a Loftness Forestry Mulcher, to clear some light brush. I see both Coolant and Hydraulic temperature indicator keep rising while operatin. After about 2 hours...
  15. Joe Zhao

    CAT 299D2 XHP (2018 build) fault code: 350-3

    I further checked the issue this morning. This is what I found: 1) Only one such Lift Linkage Position Sensor" on the 299D2 XHP. It's located on the mid-rear right-hand side lift arm. Accessible from outside the cab. There is no visible wiring damage. 2) On turning the ignition key and...
  16. Joe Zhao

    CAT 299D2 XHP (2018 build) fault code: 350-3

    I just got a new delivery of a CAT 299D2 XHP (2018 build) bought from an auction. I started the machine, and the display showed a yellow warning message "350-3 Machine" - "Lift Linkage Position Sensor Voltage Above Normal." This message is in the "Diagnostic Event." I checked under "Active...
  17. Joe Zhao

    CAT 299D2 XHP S/NDX200200 HYDRAULIC & ELECTRICAL SCHEMATICS

    Mine is high flow. 299D2 XHP DX202439
  18. Joe Zhao

    CAT 299D2 XHP S/NDX200200 HYDRAULIC & ELECTRICAL SCHEMATICS

    You need the Electrical or Hydraulic schematics?
  19. Joe Zhao

    Need a Service Manual - 299D2 XHP

    I have purchased the SEBU9084-24 (updated 2023 digital version). If anyone wishes to trade with me some other manuals, or pm me a $20 or $30 Amazon gift card to share some costs.
  20. Joe Zhao

    Need a Service Manual - 299D2 XHP

    Did you ever get your manuals for your 299D2 XHP? I just bought a used one, serial number DX202439, now looking for manuals. If you have a complete set of manuals for your 299D2, please let me know if you are willing to sell me your digitAl version, assuming your manual suits my 299D2 XHP as my...
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