It is necessary to remove ECM when you need do ECM flashing,ECM replacement.So here chinaobd2.com show you guide on how to remove and install ECM for HITACHI ZX890-7 excavator.
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Procedures:
Removal of ECM
1.Set the machine position for inspection and maintenance. (Refer to Preparation before Inspection and Maintenance in the separate Workshop Manual.)
IMPORTANT
2.Set the key switch to the OFF position. Wait 5 minute or longer, and then set battery disconnect switch to the OFF position.
Set the battery disconnect switch to the OFF position.
3.Remove the DCU.(Refer to
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