Machine & Repair shops
- All machine, repair and maintenance shops need to be kept clean and orderly at all time.
- Junk, scrap, and waste should be placed in piles, containers or specified areas as t accumulates and then disposed of at frequent intervals.
- Specific areas should be designated for temporary storage of materials to be repaired, installed or fabricated.
- The shop is place to accumulate large quantities of supplies or equipment. Those items should be brought to the shop as needed and removed when work on them is competed.
- Shops should be well lighted, heated when necessary, and adequately ventilated. If fans or portable lights are used, they must be well guarded and safety located.
- Machines, benches and work areas should be located to allow free handling of materials and equipment and permit free movement of all workmen.
- Aisles and walkways should be plainly marked with 3” black, white, or combination black and white striping, and these areas should be kept free of material and tools at all times.
- Adequate fire fighting equipment for both building and combustible contents must be strategically located for quick use if necessary.
- One or more, well stocked first aid kits, depending on the number of personnel involved, are to be readily available in every shop.
- Adequate personal protective equipment for any likely hazard must be maintained in good condition in every shop.
- Regular shop personnel who have a continuing need, should have personally assigned eye protection, face protection, specialized gloves. Ear protection, and respiratory equipment as applicable. They should also wear safety shoes at all times and other protective equipment when necessary.
- Extra personal protective equipment should also be available and be used by other employees who might be exposed to hazards in the shop.
- Hand tools should be maintained in a clear and orderly condition and must be kept in good repair at all times.
- Tool boards or racks should be provided and tools should be in their proper places when not in use.
- All electric hand tools must be properly grounded or be of the double insulated type.
- All hand-held power tools must be properly guarded at the point of operation.
- (See Section 14,” Hand Tools, Power Driven”).
- Cords for electric tools and hoses for air tools or welding must be maintained in good condition and should be kept out of walkways and off the floor as much as possible.
- Whether powered or not, using the proper tools in the proper manner for each job will eliminate many injuries.
- Eye protection must be provided at every grinding wheel location and there is to be an appropriate sing or instructions in a clearly visible place stating that eye protection is required when grinder, wire brush, or buffer wheel is operated. Every operator must observe the posted instructions.
- Bench and pedestal grinders must have guards on wheel and wire brush.
- Bench and pedestal grinding wheel guards must cover the spindle end nut and flange protection, and they shall limit the wheel exposure to 90o.
- Adjustable work rests must be installed on all bench and pedestal grinder, and they shall be set to clear the abrasive wheel by not more than 1/8” before doing any grinding.
- All bench pedestal grinders must have an adjustable tongue on the guard and the tongue shall be set to clear the abrasive wheel by not more than ¼” before doing any grinding.
- Guards or protective devices are to be provided to prevent the unintended operation of each mechanical. This protection includes starter switches, hand-operated levers and foot pedals.
- All power control devices should be located within easy reach of the operator.
- Safety shutoff devices are to be clearly marked and maintained in good operating condition at times.
- Main power disconnect switches must be capable of being locked in the position only.
- Motor starters on all power machines must be of the type that requires operation of the “start” button to start the machine after power failure in the power control circuits.
- Starting switches on all machines must be “locked out” and “tagged” so that the machines cannot be started inadvertently or automatically while they are being lubricated, adjusted, inspected or repaired.
- All power machines must be shut down and the control switch locked out and tagged, before guards are removed so the machines can be lubricated, adjusted, inspected, or repaired.
- Machines are not to be started until all guard are in place.
- On machines where control circuits to be supplied by an isolating transformer at voltages not exceeding 120 volts, AC
- All power-operated machines must have guards provided at the point of operation to prevent the operator or other personnel from having any part of their bodies exposed to danger.
- All gears, sprockets, coupling, clutches, exposed shafts flywheels, V-belts, moving set screws, key ways, etc., must be protected with properly installed guards to prevent the operator any other personnel from having any part of their bodes from the moving parts.
- Where standard guardrails are used they are to be installed a minimum of 15 inches and not more than 20 inches from the moving parts.
- Stander guardrails must be securely fastened to the machine or floor and be so anchored that they will withstand a 200-pound load in any direction.
- Employees must not go inside guardrails, reach over or under guardrails, or lean, or work on guards while machines are operating.
- Machines, which must be lubricated while they are running, should have extension oils, located away from hazardous areas, and these shall be used when the machine is running.
- All fixed machines are be securely anchored to prevent their moving or “walking”.
- With the first use of a machine on every shift or tour of duty, and after oiling, inspecting, adjusting, or repairing, the operator should test run the machine until satisfied all parts are working properly.
- Do not overload or “force feed” any power machine. Operate it at the proper speed for the work to be done and give it time to perform its function safely.
- Keep the point of operation in perfect condition at all times. Keep drill bits, saw teeth, cutters, etc., sharp and use only those of the proper size and style.
- Do not attempt to hold material you are working on with your hands if it should be clamped.
- If material becomes stuck in the machine, shut the machine down and remove the material with a proper tool.
- Wrenches and small tools must be removed from chuck before the machine is started.
- A proper brush, stick or other tools should be used to remove chips or other waste material from the point of operation. Hands or fingers should not be used. Any waste material should not be removed from the point of operation while the machine is running.
- A machine must never be left running unattended. If the machine must be left, even for a short period of time, it should be turned off.
- Once the power has been turned off to machine it shall be allowed to stop under its own power. An operator should never use any part of his body to slow or stop a machine.
- When operating a machine, the operator must not wear loose clothing, long hair, rings or wrist watch.
- A machine operator should never talk to anyone while operating a machine. If talking is necessary, shut the machine down until the conversation is finished.
- Any internal operator engine, run for any purpose, in a shop, must have its exhaust vented to open air.
- All power machinery and power transmission equipment are to be inspected at established intervals, not to exceed 60 day, and proper information recorded, dated and initialed by the inspector.
- When a bench grinder or pedestal grinds is to be turned on, the operator should stand to one side until it reaches full RPM. Should a grinding wheel disintegrate, it usually does just as it reaches fullRPD. Standing to one side removes the operator out of the path of much of disintegration grinding wheel.