changed every 1500km afterwards; after maintenance, the oil must be changed. When the amount of oil is insufficient, it
should be refilled in time.
6. Oil change method
① Remove the vent plug at the top;
② Remove the oil drain plug at the bottom, drain the oil and reinstall the screw plug;
③Inject special gear oil from the vent plug port, the amount of refueling will vary depending on the model, please refer to the
amount of refueling marked on the rear axle;
④ Tighten the observation screw and vent plug.
●4-1-2 Controller’s Usage & Maintenance
The controller is a highly integrated electronic product, which is sensitive to static electricity, temperature, etc. Before each
functional component and controller overhaul operation, remember to turn off the power before operating to avoid accidental
loss; control during use Pay attention to ventilation and heat dissipation around the device, and prohibit overload operation.
The contents of regular maintenance are as follows:
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