Grinding Safety

Cause of Breakage of Grinding wheel

NEVER MOUNT A DAMAGED GRINDING WHEEL. DONT GRIND MATERIAL FOR WHICH THE WHEEL IS NOT DESIGNED.NEVER MOUNT A GRINDING WHEEL ON A MACHINE NOT DESIGNED AND GUARDED FOR THAT GRINDING WHEEL.NEVER OVERSPEED A GRINDING WHEEL.FAILURE TO PROPERLY MAINTAIN A GRINDING MACHINE CAN CAUSE GRINDING WHEEL BREAKAGES RESULTING IN SERIOUS INJURY OR DEATH.IMPROPER MOUNTING OF GRINDING WHEELS. ALL GRINDING WHEELS CAN BE BROKEN IF NOT USED PROPERLY.IF YOU DO NOT KNOW HOW TO USE A GRINDING WHEEL OR THE GRINDER, GET HELP!

Jamming the work into the grinding wheel.Force grinding, so that the motor slows noticeably or the work gets hot. Grinding on the wrong surface of a grinding wheel, i.e. grinding on the side of a Type 1 or straight grinding wheel.

HandlingGrinding wheels are fragile and sensitive to impacts and shocks. Be aware of this when you handle them.TransportThe grinding wheels must be handled with care during transportation.

StorageGrinding wheels shall be stored in such a manner that mechanical damage is avoided and that they are not subjected to damaging environment.Store in dry, frost free conditions in special racks or containers. Store in moderate and constant temperature. Use the wheels held in stock longest first.

MarkingUse only wheels, which are properly labeled. Read the marking and obey the instructions for use. Ring TestCracked wheels can be identified by doing ring test. To perform the ring test, wheels should be tapped gently with a light non-metallic implement, such as the handle of a screwdriver for light wheels, or a wooden mallet for heavier wheels. Clear Ringing sound indicates the wheel is free from cracks. Dead sound indicates presence of cracks. Such wheels should not be mounted on the machines.

Wheel GuardBefore starting the cutting-off or grinding operation, the wheel guard must be in position and fixed securely.Other protectionDepending upon the grinding process, suitable protection has to be used such as: Ear muffs or equivalent Gloves (in case of Bench Grinding machine hand gloves should not be used.) Dust mask Leather apron or safety clothes Head cover Safety shoes

Protection of the work placeHand held grinders should be used in such a manner that sparks fly away from the operator's body or any flammable material.Stopping the machineSwitch off the machine and allows the wheel to stop completely before placing it on a bench or on the floor.

Selection of grinding wheelSelect the proper grinding wheel and machine for the job.Visually inspect all grinding wheels. Also, the use of ring testing or vibration testing is required for many grinding wheels. NEVER USE A DAMAGED GRINDING WHEEL.Check the machine speed against the maximum operating speed of the grinding wheel. Inspect the machine and its guards.NEVER USE A DAMAGED MACHINE.Do not force a grinding wheel onto the mounting arbor. If the wheel does not fit, dont use it.Dont over-tighten the mounting nut or mounting screws. Tighten flanges just enough to prevent wheel slippage. Wear all required personal protective equipment.Allow the grinding wheel to run at operating speed for one full minute before using the grinding wheel. Do not allow anyone to stand in front of or in line with the grinding wheel during this test

Selection of grinding MachineSelect the proper grinding wheel and machine for the job.Lock out and tag all machines before working on them. Disconnect portable machines from their power source before changing the grinding wheel.Check the machine speed against the maximum operating speed of the grinding wheel.The speed of the grinding wheel must be equal to or greater than the machines speed. Inspect the machine and its guards. Check the machines speed with a tachometer before mounting grinding wheels. Clean arbor and flanges before mounting a grinding wheel.Check the mounting flanges for proper type, size, and flange condition. NEVER USE MISMATCHED, UNDERSIZE, DIRTY OR DAMAGED FLANGES. Use only machines designed and guarded for the grinding wheel you are using. Use proper mounting blotters when required or supplied by the manufacturer.Do not reuse blotters and use only one blotter for each side of the wheel.Care must be taken to ensure that all blotters are not allowed to bunch up or fold over and do not get caught inside the wheels hole.Replace all guards and reset the machine to accommodate the new grinding wheel.

ELECTRICAL SAFEGUARDINGCABLES!!!!!!LOOSE LYING CABLES CAN CAUSEA TRIPPING HAZARDELECTROCUTIONTHEY ARE UNTIDY

DO NOT OVERLOAD SOCKETS. IF A MACHINE TRIP OR AN ELECTRICAL CABLE BECOME WARM TO THE TOUCH, IT MUST BE DISCONNECTED AND REPORTED WIHTOUT DELAY

ELECTRICAL SAFEGUARDINGDO NOT USE TAPED JOINTS TO CONNECT CABLES SINCE THEY DONT HAVE SUFFICIENT INSULATION OR PROTECTION FROM LIQUIDS.DO CARRY OUT YOUR OWN VISUAL INSPECTIONS OF PLUGS AND LEADS AND GET THEM REPAIRED AS NECESSARY. LOOK OUT FOR:PHYSICAL DAMAGE TO THE CABLEDAMAGE TO THE PLUGSINSECURE CONNECTIONS TO THE PLUGDO SWITCH OFF EQUIPMENT BEFORE UNPLUGGING AND BEFORE CLEANING

SLIPS, TRIPS AND FALLSPREVENT THEM BY REMEMBERING THE FOLLOWING:DO NOT ALLOW CABLING TO CREATE A TRIPPING HAZARDCLEAR UP SPILLAGES QUICKLYDO NOT BLOCK PASSAGEWAYSKEEP WORKING AREAS CLEANWATCH OUT FOR:CHIPPED FLOORBOARDS AND TILESWATCH WHERE YOU WALK!

Check list for the Abrasive wheel

EYESUSE FASE SHIELD WHILE GRINFDING DONT RUB YOUR EYES IF ANY FOREIGN PARTICLES FALLWASH YOUR EYE WITH WATERCHECK FOR POOR VISION

Grinding Prohibited If--

ONLY WORK ON EQUIPMENT/JOB IF YOU ARE AUTHORIZEDTO DO SO!

HOUSEKEEPING

NO FOOLING, TEASINGWHILE MACHINE IS ON

QUESTIONS???