Maintenance of Sewing Machines
Maintenance is an activity involved in maintaining something in “good working order”. Widely it can be divided into two categories.
- Corrective Maintenance
- Preventive Maintenance
Corrective maintenance can be defined as the maintenance which is required when an item has failed or worn out and to bring it back to working order. Corrective maintenance is the most commonly used maintenance approach, but it has its limitations.
When equipment fails, it often leads to downtime in production, and sometimes damages other parts. In most cases, this is expensive also, if the equipment needs to be replaced, the cost of replacing alone can be substantial. The reliability of systems maintained by this type of maintenance is unknown and cannot be measured. Therefore, corrective maintenance is carried out on all items where the consequences of failure or wearing out are not significant (less important items) and the cost of this maintenance is not greater than preventive maintenance.
Preventive Maintenance
Preventive maintenance is conducted to keep equipment working and/or extend the life of the equipment. The primary goal of maintenance is to avoid or mitigate the consequences of the failure of equipment. Preventive Based Maintenance help to prevent failure before it actually occurs. It is designed to preserve and restore equipment reliability by replacing worn components before they actually fail.
Preventive maintenance activities include partial or complete overhauls at specified periods, oil changes, lubrication, and so on. In addition, workers can record equipment deterioration so they know when to replace or repair worn parts before they cause a system failure. The ideal preventive maintenance program would prevent all equipment failure before it occurs. Following are the two examples of Preventive Maintenance Schedule which are commonly used in the garment industry
- 1st Plan talks about the activities which have to be carried out on monthly basis and
- 2nd Plan talks about the quarterly (3 Months) basis.
Preventative Maintenance Services Plan Monthly Check
- Thread stand clean & tight
- Bobbin winder proper check
- Feed dog check
- Pressure foot check
- Needle plate check
- Needle screw check
- V-belt check
- Belt cover clean & tight
- Pully & pully cover check
- Hookset check
- Oil level check properly & clean
- Needle guard check
- Moving knife check
- Fix knife check
- Footrest check
- Headrest pin check
- Knee pad check
- Paddle mat check
- UBT machine proper working & check
- Stand shoe check
- Fabric guide check
- Pedal chain check
- Looper check
- Waste tube check
- Lower knife check
- Upper knife check
- Eyeglass check
- Tabletop condition check
- Machine condition check
- Gauge set check
- Top feed dog check
- Gear bearing check
- Pressure-bar/regulator check
- Bobin case check
- Oil lubrication system checking
Preventative Maintenance Services Plan Quarterly Check
- Oil change
- Moto & control box clean by air pressure
- All moving parts checking/replacement
- Gear and bearing checking/replacement
Safety Measures
The machine Mechanic working in factories, must follow the following points and adopt safe working practices.
- Disconnect the sewing machine by pulling out the plug from the wall outlet, not by jerking the cord. Jerking the cord can cause the cord to become worn or frayed
- Disconnect the plug from the wall outlet first then the plug from the machine. Otherwise, electricity continues going through the cord and you could receive an electrical shock.
- Always unplug the machine from the electrical outlet when removing covers, lubricating, or when making any other user servicing adjustments
- Place pins, needles, and tools in a container when not using them. Do not leave them loosely on the table or on the floor
- Pins and needles should never be placed in your mouth
- When not in use, pointed tools should be left closed
- Handle sharp tools with the handle first
- When in doubt, ask the instructor
- Report any injuries or accidents immediately to the Also, Report a breakage to a tool or m/c to the instructor.
- Wipe up any oil spillage on the floor immediately to prevent anyone from keeping aisles clear at all times.
- Operate only the machines you have been trained to operate
- Make only adjustments you have been trained to perform
- When on duty wear low shoes & close-fitting clothing. Avoid loose-fitting sleeves, sweaters, jewelry, ties, and ribbons when operating the machine. If your hair is long, tie it back
- Always practice proper posture to reduce fatigue, help prevent accidents and increase efficiency
- Use both hands to raise & lower the machine head
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school of fashion and designing by Joyce Aba Bio was thought by hand Heming and Blind stitches was one mean the hand stitching thanks a lot guys.