Elimination Of E221 And E220 Codes In Computer Case Of 1900A Computer Sewing Machine

If the code No.E220 is displayed on the display, press the reset button to remove it and continue to use it.

After a period of time, the code No.E221 will be displayed. Even if the information button is unable to be removed, the machine will not work.

If the confirmation is to display the code No.E221, it is necessary to add lubricating oil to the specified part, then activate the memory switch, display the memory switch No.245, and select the "0" through the reset key, and the code can be relieved.

When lubricating oil is added, it is necessary to change the memory switch No.245 to "0", otherwise it will be possible to display the code No.E220 or No.E221.

Lube oil should be selected as the original lubricant.

Methods of lubricating oil supplement:

(1) add lubricating oil to eccentric cam parts.

Open the upper hood, remove the lubricating oil cover, remove the rubber plug on the side of the eccentric cam, and add lubricating oil to the specified part.

(2) add lubricating oil to the pin position.

Turn over the machine head, remove the lubricating cover, remove the fixed screws of the big gear, install the auxiliary lubricating joint, lubricate the oil into the screw hole, add lubricating oil (the lubricant dosage is 0.74 grams), add the lubricating oil, and then tighten the removed fixing screws.