Cat Lift Trucks (& Caterpillar) NRR40:
fault code 26

Truck serial # 2GL 01754. Actual model # NRR45. Truck showing fault code 26 at key up. No travel. My service manual not matching up with this particular truck. I followed code 26 procedures in Raymond discussions. Checked for battery short to frame. Showing ok. Pulled drive motor cables and checked for shorts or opens. All checked ok. Inspected all power cables and connections to drive motor. All showing ok. Am lost on where to go from here. Still not certain on code 26 on this particular truck and srial number. Please help. Thank you.
  • Posted 9 Sep 2015 02:32
  • Discussion started by lonnie_a
  • Texas, United States
Lonnie
Showing items 1 - 1 of 1 results.
things to check for this code 23

- FU5 may be blown
- may be open circuit in drive motor
- may be open circuit in power wiring for armature in drive motor
- power transistor Q1 may be bad
- CCM may be bad
- cable between CCM and VM may be bad
- VM may be bad

Run Tests:
- O14 Chopper Control Module PWM test
- O13 CCM Enable Signal
- A11 Armature Current Sensor Voltage
  • Posted 10 Sep 2015 20:57
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com

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