Tuesday, June 25, 2019

Safety Code – Mechanical


Safety code – Mechanical.


There are many mechanical hazards present in a factory. We have to be extremely careful and behave appropriately to avert accidents. Read the following tips and follow them without fail.

General.

  • Always maintain your work area clean and tidy. Do not allow substances like oil, grease, etc to remain on the floor.
  • After completion of every job, clear the area without fail. Do not leave anything (bolts, nuts, bearing wrappers, etc) on the work spot.
  • Do not run any equipment without appropriate safety guards for the rotating / moving / reciprocating parts.
  • Always keep safety in mind while working and do not take any undue risks.
  • Always ask for clarification if you have doubts. Stop the work and do not proceed further until your doubt gets cleared.
  • Always carry out the work by following the prescribed procedures. If you do not know the procedure or the procedure is not available, ask the person who allotted the work to you.
  • Never run in the shop floor. You can get toppled.
  • Do not walk over running conveyors however slow they are. Always use the over bridges or appropriate crossing points to cross the same. If it is not available, report it to your superior.
  • Always wear safety shoes.
 Working at a height.

  • For all practical purposes, you should consider any height above six feet as dangerous.
  • Use appropriate personal protective equipment like safety belt when you work at a height.
  • Get an approved work permit, from the concerned authority, before starting the work at height.
  • Use ladders with all steps and in good working condition.
  • If there is a problem in the hand rail of a ladder, report it immediately to the supervisor.
  • While climbing, climb one step at a time.
  • While working at a height, ensure that there is an observer at the floor level watching you.
  • Ensure that the observer is capable of taking appropriate decisions in case of any eventuality.
  • Have a proper support for you while working at height. This will allow you to focus on the job without any concern.
  • When you work over asbestos cement roofs, always use a cat ladder to walk above the sheets. The cat ladder should be of appropriate design suitable for the roof you are working with. Do not run over the roof.
  • Never drop anything (like spanner, bolt, nut, etc) from the height while you are working.
  
Arc welding.

  • Do not touch live electrical parts.
  • Wear dry and hole-free insulating gloves while welding.
  • Take special care while welding in damp areas; avoid it as far as possible.
  • Confirm that the body of the welding transformer is properly earthed before using it.
  • Use correct sized metal clad plugs for connecting the welding transformer.
  • Protect the electrical cable from hot metal and sparks. Keep them free of oil, grease and joints.
  • Periodically inspect the cabled for damages and insulation failures. Get the faults rectified through authorized electrical personnel.
  • Do not use damaged, undersized cables.
  • Do not touch the electrode if you are in contact with the work or ground or another electrode from a different machine.
  • Maintain the transformer in good condition. Repair or replace the damaged parts at once.
  • Keep all the covers and enclosures in place.
  • Clamp the earth electrode to the work piece securely. Use insulated clamps.
  • Do not connect more than one electrode or work cable to any single terminal.
  • Do not touch hot parts bare handed. Use proper tools for the same.
  • Welding, chipping, and wire brushing cause sparks and flying metal. Wear safety glasses / goggles to prevent mishaps.
  • Always use helmet with proper welding glass while welding.
  • Don’t breathe welding fumes as they can be hazardous to your health.
  • While working in a confined space wear an air-supplied respirator. Always have a trained watch-person nearby.
  • Use protective screens or barriers to protect others from flash, glare, and sparks. Warn others not to watch the arc.
  • Welding in closed containers such as paint cans, oil drums can cause them explode. Do not weld in closed containers.
  • Flying sparks, hot work piece can cause fires and burns. Keep fire buckets and fire extinguishers handy.

Gas cylinders.

  • Gas cylinders contain gas under high pressure. If damaged, it can explode. Handle them carefully.
  • Protect gas cylinders from mechanical damage, excessive heat, open flames, sparks and arcs.
  • Always store the cylinders in upright position and secure them properly.
  • Never drape a welding torch over gas cylinders.
  • Never allow a welding electrode to touch any cylinder.
  • Never weld on a pressurized cylinder. It will explode.
  • Always use correct size and correct quality regulators, hoses, fittings and torches.
  • Turn your face away from the valve outlet when you open it.
  • Always place the protective cap above the valve, if it is not in use.
  • Store the cylinders in their respective marked places – empty and full in their respective places.
  • Do not place the cylinders close to open flames and arcs.
  • Once the job is complete, shift the cylinder to its designated place. Do not leave it where you worked.
  • Do not use damaged hoses. Get them changed immediately.
  • At the end of the day, roll the hoses properly and hand over it to the in-charge.
  • Do not leave the hose or regulator in the cylinder while leaving at the end of the day. Remove them and hand over to the in-charge.
  
Diesel engine & Diesel Generating (DG) sets.

  • Fuel can cause fire or explosion. After stopping the engine, allow it to cool before carrying out any work involving fuel.
  • Do not allow fuel to spill out or leak. Clean up immediately.
  • Keep away from moving parts like fans, belts and rotors.
  • Keep all doors of the sound-proof enclosure, panels, covers, and guards closed and securely in place.
  • Keep hands, hair, loose clothing, and tools away from moving parts.
  • Don’t open the radiator plug immediately after stopping the engine. Hot steam will come out which can cause severe burns. Allow the water pump to run continuously and observe the water temperature. When it comes down reasonably (around 40 degree), you can safely open the radiator cover.
  • Do not allow tools to cause sparks while working in a battery.
  • Stop the engine before disconnecting the battery.
  • Never run the engine without battery in the circuit since this may prevent protection circuit from functioning.
  • Always maintain good ventilation in the room.
  • Do not remove doors, covers or guards while the engine is ON.

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