3. Unfasten 6 screws and detach the cover to expose the PCBA, motor assembly,
and battery pack.
4. To detach the battery connection wire, press the clip on the connector and then pull
it out. NOTE: Wrap the connector immediately with insulating tape in order to avoid
short circuit caused by contact of both wire terminals.
5. Unfasten the 3 screws to release the battery compartment cover. Remove battery
pack from the compartment.
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