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Keep it clean
Too much lint
Lint from the cut fabric builds up in the machine and if not removed, will cause problems, It can soak up the oil (which lubricates the machine) and get caught under the stitches and moving parts, Use a small brush to remove the lint do this between each garment made. Some fabrics are more prone to causing lint build up than others - when working with fibrous fabrics such as fleece and woollens, brush away the lint more regularly.
Do Blades need replacing often
The blades in the machine may last for a long time depending on how often the machine is used and what materials are used on it. They do however need to be replaced if the edge face becomes shiny as they will blunt. Certain fabrics such as velour or surface texture fabrics, can seriously damage the blades so check them after using such fabric.
Cleaning Tensions
Tie several knots in a length of buttonhole thread then dip it in white spirit. Pull this back and forth through the tension dials to get rid of lint build up.
Lubrication
How often an overlocker needs to be oiled will depend on how the machine is used and where it is stored. The general recommendation is that an overlocker is oiled after every eight hours of actual running time but if a machine has been left unused for sometime it should be oiled. Also oil more frequently if the machine is stored near a radiator. Always use specific sewing machine oil not general household oil as it is too heavy. Follow the manufacturers instructions when oiling an overlocker - the manual will recommend oiling points for the moving parts. When oiling, turn the mechanism by hand then leave it overnight for the oil to settle before using the machine
Servicing
How often an overlocker needs servicing will depend on how much it is used. As a general guide however, plan on a service every two to three years.
