Komatsu FB18M-2E:
alarm code

Hi!

Could you please tell me what does this code stand for:
"Al 5021" (forklift Komatsu18-12).

Thanks.
  • Posted 29 Jul 2011 00:25
  • Discussion started by dina_w
  • Tbilisi, Georgia
Showing items 1 - 2 of 2 results.
Thank you very much for the exhaustive explanation!

Could you please tell me where can I find the list of alarm and error codes?

Best regards,
Dina.
  • Posted 29 Jul 2011 16:31
  • Reply by dina_w
  • Tbilisi, Georgia
Hello Dina,
this error message means, Cargo Handling Controller (Abnormal Temperature)
Repair Procedure
1. Stop the vehicle and cool down the controller.
2. Check the mounting of cargo handling controller.
(Looseness)
3. Check the harness between the power module temperature
sensor and the terminals No.10 and No.11
of connector CN2G on the CPU board. Repair or
replace.
4. Disconnect the harness and measure the resistance
/ voltage of temperature sensor. If abnormal,
replace the power module.
5. Measure the resistance of harness between the
connector CN2-D1 of travel (R) controller and the
fan connection.
Judging: Between CN2-D1 terminal No.3 (black) and fan
connection harness terminal No. 2 (black): 0 Ω
6. Check the fan. Repair or replace it.
7. If normal in the above check, replace the cargo handling controller.
Kind regards
Marc
  • Posted 29 Jul 2011 04:25
  • Reply by marc_b
  • ANTWERP, Belgium

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