Singer 4423 heavy duty extra-high sewing speed sewing machine doesn’t have all the stitches of a top of the range model or the automatic features of a computerized machine. Does Singer 4423 need oil? Simply take off the removable storage compartment to access the machine’s free arm, then slide the Extension Table onto the machine. There are no noticeable oiling points on the sewing machine … Fits SINGER mechanical Heavy Duty Machines made since Fall 2019: Model 4411: from serial # ZHV1924003001 or after. There are no cleaning or oiling instructions in the manual. see all. Authorized Seller. Returns Accepted. Meaning, you can use low shank accessories from previous units. It utilizes only low shank accessories. Worldwide. No list of any type of sewing machines can be complete with a Singer, and heavy duty sewing machines are no exception. Model 4423… The Singer 4423 heavy duty sewing machine is a low shank sewing machine. While it … Dimensions: 15 ¼” x 10” or 38.8 x 25.4 cm. Free Returns. ... 751 product ratings - NEW SINGER 4423 Heavy Duty Sewing Machine … The Singer 4423, however, is more than just another heavy duty machine.. Canada Only. Show only. But you’ll stand proudly with the sewing … Free Shipping. see all. Delivery Options. Free Local Pickup. North America. Free In-store Pickup.