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Cat Lift Trucks (& Caterpillar) EP18KT:
error code 18

cat ep18kt s/n etb5b00256
Getting a code 18 when trying to travel fwd. Regen contactor only pulls in when traveling in reverse. material handling functions normal. Any ideas? Thanks

• Posted 3 Oct 2015 07:39
• Discussion started by cheeks
• California, United States

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Problem: Right Motor, Faulty Field Drive (18) You have a problem in the right drive motor field circuit. I would check all of the drive motor to H bridge wiring. The problem could be in the drive motor, wiring from the logic to the H bridge, logic or H bridge. My past experience has usually been a failed H bridge if the wiring and motor checks out. The H bridge is located under the logic card and drive board.

• Posted 15 Oct 2015 10:17
• Reply by shovel_fx
• Illinois, United States

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