Please Note: the sewing machine has been PRE-THREADED from the manufacturer and the cloth is to test the machine (NOT A USED PRODUCT).
Please manually turn the hand-wheel counterclockwise to ensure there is no thread jamming or other problems before turning on the power.
Please only choose one way to start the machine (electricity-powered or battery-powered). Otherwise, it would either make the machine not work or even damage the machine if the power supply and battery are used at the same time.
When the positive and negative electrodes of the battery are wrong, the machine will be reversed and cannot be sewed which may cause damage to the machine.
Please make sure the direction of the needle and the fluid in the process of winding, otherwise it would cause the thread jamming or can't seam line mark.
Before changing the stitch, please ensure that the needle is off the base and kept in the highest position, otherwise it would be hard to change the stitch and even lead to breakage of the needle.
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