fault code ER 137 - Maintenance & Troubleshooting discussion in Forkliftaction's forums

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fault code ER 137

hi guys im looking for information on this machine i have lift and steering but no drive.machine starts up ok but when drive is selected fault code ER 137 flashes on the dash.
any help would be great thanks

Posted 14 Mar 2013 06:52
By Mag1
joined 24 Feb'06 - 25 messages
CO DUBLIN, Ireland

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Meaning: Driver release driver: VZA controls driver but driver checkback signal missing.
Effect: Driving switched off (drive, Mikropils, brake)
Possible cause: driver on SK-VZA defective.
Measure: status analysis MZ-100, visually inspect SK-VZA, replace if necessaary. Before starting check the protection circuit of the drive contactors.
VZA: is the driver compartment processing unit
Also check the microfuses. The cards in the VZA and VZK are interchageable, so you might be able to identify a faulty card by swapping. There are some measures to be taken before swapping. If you need these email me.

Posted 7 Dec 2013 00:12
By Roibeard
joined 2 Mar'10 - 335 messages
Dublin, Ireland

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