Cat Lift Trucks (& Caterpillar) NRR40:
Forklift Error Code 26

please helpme with a failure in my cat NRR40 Forklift, Error Code 26 is showing in main panel, machine is stop.. dont move forward or backward...
  • Posted 14 Feb 2015 03:57
  • Discussion started by vicentealoise
  • aragua, Venezuela
Showing items 1 - 8 of 8 results.
Anybody that has fisical information about nrr40 that can get in contact with me? Need the book! Serial # 2GL07349
  • Posted 14 Jul 2017 01:30
  • Modified 14 Jul 2017 06:02 by poster
  • Reply by Eduardo
  • Chihuahua, Mexico
Yeah swoop kinda what i thought. was just giving him a easy check starting point. kind of tough without the book
  • Posted 18 Apr 2017 22:55
  • Reply by Adams1
  • Indiana, United States
it could be the field's in the motor but there are other things to consider as well that are part of the field circuits.
- FU8 which is the 150A B+ field wiring motor circuit fuse located on the contactor panel.
- cables from field windings to field wiring assy
- field wiring assy to H-bridge Control Module (HCM)
- HCM to vehicle manager
- field wiring assy T1 - T4 (base leads for TM1 and TM2)
- TM1 or TM2 may be bad
- HCM may be bad
- VM (vehicle manager) may be bad
- drive motor may have open circuit in windings

YOU WILL need the service manual for the correct procedures and test points to correctly diagnose and test these circuits and components.
  • Posted 18 Apr 2017 21:01
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
the code has to do with the fields. check cables and wires and test/check motor
  • Posted 18 Apr 2017 20:13
  • Reply by Adams1
  • Indiana, United States
I am not the original poster, but I am getting the same error code. The machine SN is 2GL05855. Are you familiar with the Field transistors? Supposedly they are bad, but when tested for continuity with a tester each transistor reads correctly for each direction, perhaps they behave differently under load.
  • Posted 18 Apr 2017 06:44
  • Reply by Peavey
  • Minnesota, United States
serial number is a must on this one, so we know what system it uses..
  • Posted 10 Jul 2015 11:34
  • Reply by edward_t
  • South Carolina, United States
"it's not rocket surgery"
Please. I have same problem that equipment Nrr40.

in the display show me code 26
the forklift cant advance

please , help me
  • Posted 10 Jul 2015 01:40
  • Reply by jesus_a
  • Tamaulipas, Mexico
serial number is a must on this one, so we know what system it uses...
  • Posted 14 Feb 2015 10:50
  • Reply by edward_t
  • South Carolina, United States
"it's not rocket surgery"

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