code 51 - Maintenance & Troubleshooting discussion in Forkliftaction's forums

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code 51

Hyster E50XM2-33

I have a Hyster E50XM2-33 sn F108V19668X that is giving a code 51. It happens while the hydraulic functions are being used. The thermistor on the line contactor gets hot. All the control fuses are good. Any help will appreciated.

Posted 22 Oct 2012 23:46
By nic_c
joined 22 Oct'12 - 1 message
Colorado, United States

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Hi, do you know the value of the Thermistor or P/N.
Thanks

Posted 13 Apr 2017 22:45
By luke_m
joined 2 Feb'13 - 97 messages
Bedfordshire, United Kingdom

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Status Code-51
Description
Voltage on C1 too high when motor current is high.
Cause of Status Indication
This Status Code is indicated when the voltage on C1 is greater than 225 volts and the motor current is greater than 300 amps.
Indication of Fault
Forward or Reverse contactors open and close, then close only when the key switch is opened and closed.
Possible Cause
Too much inductance from cables.
Check that the battery cables are too long.
Circuit
Traction

Check that additional cables for other equipment have been added.
Motor current too high.
Check for a short circuit at a field winding.
Check for a short circuit across an armature winding.

Posted 24 Oct 2012 10:01
By forklift_brasil
joined 27 Sep'12 - 55 messages
rio de janeiro, Brazil

tecmanuais@yahoo.com.br
skype:hyster.brasil

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