Sewing machine runs heavily due to which reason?

Correct option is C

Correct Answer: (C) Lack of oiling and cleaning
Explanation:
→ A sewing machine runs heavily when there is insufficient lubrication or accumulated dust and lint in its moving parts.
→ Lack of oiling causes friction between metal components, making the machine hard to operate.
→ Regular cleaning and oiling ensure smooth movement of the needle, shuttle, and feed mechanism.
→ Proper maintenance prevents wear and tear, overheating, and thread breakage, improving the efficiency and lifespan of the machine.
Information Booster:
→ Sewing machine needs regular oiling for smooth operation.
→ Dust, lint, and thread fibers can clog moving parts, causing heaviness.
→ Lack of lubrication increases friction and resistance.
→ Proper cleaning includes removing lint, oiling moving parts, and adjusting tension.
→ Helps prevent mechanical breakdowns and uneven stitching.
→ Extends the lifespan of machine components.
→ Essential for efficient and safe sewing operations.
Additional Information (Other Options):
Option (A) More pressure on the presser foot – May cause fabric puckering but not heaviness.
Option (B) Thread clogged in the shuttle – Causes thread jams, but not heaviness in running.
Option (D) Loose belt – May cause slipping, reducing stitching efficiency but not heavy running.