As stated in your letter, the Occupational Safety and Health Administration’s (OSHA) standard at 29 CFR 1910.212(a)(5) requires employers to protect employees from exposed fan blades. If working with or near equipment exposes an employee to a hazard, in this instance, fan blades, then guards must be provided.
Does a fan blade require a guard?
Exposure of Blades, 29 CFR 1910.212(a)(5), specifies that all fans within 7 feet of the floor or working level must be guarded. The guard must not have openings greater than one-half inch in width.
What machines require point of operation guarding?
Machines that usually require point-of-operation guarding include power presses, milling machines and portable power tools, according to OSHA.
Why do fans have guards?
Fan guards are used to provide a physical barrier around spinning fan blades to prevent accidental contact with fingers or other objects.
Which of the following machine parts always require guards OSHA?
Revolving barrels, containers, and drums must be guarded by an enclosure interlocked with the drive mechanism, so the barrel, gun, or container cannot revolve unless the guard enclosure is in place.
Do rotating barrels require guards?
A: “Revolving barrels, containers, and drums must be guarded by an enclosure interlocked with the drive mechanism, so the barrel, gun, or container cannot revolve unless the guard enclosure is in place.”
What are the three basic areas of a machine that require safeguarding?
All machines consist of three fundamental areas: the point of operation, the power transmission device, and the operating controls.
What are the 4 types of machine guards?
There are four general types of guards:
- Fixed.
- Interlocked.
- Adjustable.
- Self-adjusting.
Does OSHA require a machine guarding program?
General Requirements
29 CFR 1910.212(a)(1) states that one or more methods of machine guarding must be used to protect operators and other employees from hazards, including those created by point of operation, in-running nip points, rotating parts, flying chips and sparks.
Are industrial fans safe?
Contact with rotating blades
An operating fan poses a significant risk of injury by contact with the propeller and must be treated with vigilance and care. Indirect contact can also occur with blowing dust/dirt. This is particularly hazardous to eyes and respiratory system.
What type of hazard is electric fan?
Close proximity to the fan blades can cause the following: Blowing dust or dirt, which is particularly hazardous to eyes and human or animal health. High-speed airflow can knock you off of your feet. Bodily harm or injury when actually coming in contact with the fan blades.
Do abrasive wheel machinery require guards?
Abrasive wheel machinery, such as bench grinders, must be guarded and maintained to protect employees. Abrasive wheels must be used only on machines provided with safety guards. The safety guard must cover the spindle end, nut and flange projections.
What is one of the most common ways in which workers get hurt around machines?
The most common way workers get hurt around machines is by reaching-in to clean equipment, not using lockout tagout, interaction with parts where guards are missing, or allowing a person who is not qualified to work on a machine. The most common injuries are amputations, especially those of the fingers.
Do milling machines need safeguards?
OSHA requires all machines to have one or more guards in place to protect operators and other employees from harm. This is particularly true for dangerous equipment like the milling machine. An electronic safety device, such as a Motor Controller, is an excellent addition to your physical safeguards.
Which of the following are all machine safeguarding requirements except?
The following are all machine safeguarding requirements except: Must prevent workers from lubricating a machine without removing the safeguard.
What is the difference between a machine guard and a safeguarding device?
Guards provide physical barriers that prevent access to dangerous areas. Safeguarding devices either prevent or detect operator contact with the point of operation or stop potentially hazardous machine motion if any part of a worker’s body is within the hazardous portion of the machine.
What OSHA standard requires guarding of horizontal shafting that is less than seven feet from the floor?
OSHA standard, §1910.219(c)(2)(i) states, “All exposed parts of horizontal shafting seven (7) feet or less from floor or working platform, excepting runways used exclusively for oiling, or running adjustments, shall be protected by a stationary casing enclosing shafting completely or by a trough enclosing sides and top …
How should a rotating shaft be guarded?
According to OSHA Standard 1910.219(c)(4)(i), a projecting shaft end protruding more than one-half the diameter of the shaft must be guarded by non-rotating caps or safety sleeves. Shafts with keyways can catch clothing easily.
Why is the fixed guard preferable to all other types?
This guard is usually preferable to all other types because of its relative simplicity and permanence. In Figure 11, a fixed guard on a power press completely encloses the point of operation. The stock is fed through the side of the guard into the die area, with the scrap stock exiting on the opposite side.
Who is responsible for ensuring that all machines are properly guarded?
The Occupational Safety & Health Administration (OSHA) is getting more stringent, both with regulations and enforcement, on machine guarding violations. They are targeting industries with higher risks of potential injuries from machinery.
What is considered a pinch point OSHA?
“Pinch point” means any point other than the point of operation at which it is possible for a part of the body to be caught between the moving parts of a press or auxiliary equipment, or between moving and stationary parts of a press or auxiliary equipment or between the material and moving part or parts of the press …
Can you keep a fan on all day?
Ceiling Fans and Air Movement
Essentially, they create a cool breeze—even cooler when you have the air conditioner running as well (plus, ceiling fans help with AC efficiency, which we’ll get to below). But running your ceiling fan all day–specifically, when nobody is home–could be more wasteful than it is helpful.
Is it safe to leave an electric fan on all night?
Don’t leave your fan running overnight or while you are out of the house. Once you’ve had your electric fan for a few years, think about replacing it as older motors can overheat. Don’t balance the fan on the edge of the counter, or anywhere that it could fall off.
Can industrial fans overheat?
Not having the fan blades installed in a correct position can result in a lack of airflow and cause the motor to overheat. Lack of maintenance. If the motor has not been lubricated, or the unit kept clean, this can lead to overheating problems.
What are the hazards of a fan?
One major safety hazard from exhaust fans is as simple dust accumulation. Dust collects on fan blades and inside the housing unit. If fans are left to collect dust over long periods of time, the motor will labor or seize. The fan will continue to generate heat, but may fail to maintain the amperage to trip the circuit.
How many fires are started by fans?
— If you’re using a fan to stay cool in these hot temps, be warned, they can be a fire hazard! A Consumer Product Safety Commission report says electrical fans were associated with 20,000 structure fires in an 8-year period.
Is it normal for fan motor to get hot?
Yes, fans do get hot. It is due to the fact they use the most common motors to run- AC motors. Such motors become hot whenever they are in operation. As the ceiling fan runs, the heat dissipates into the space via fan housing.
Which parts of a machine must be guarded?
Revolving barrels, containers, and drums must be guarded by an enclosure interlocked with the drive mechanism, so the barrel, gun, or container cannot revolve unless the guard enclosure is in place.
What machines require point of operation guarding?
Machines that usually require point-of-operation guarding include power presses, milling machines and portable power tools, according to OSHA.
Do buffing wheels need guards?
Rule 1115. (1) A polishing, buffing, or wire brush wheel on a hand jack, automatic machine, or coated abrasive machine shall have guards made of a minimum of 16 gauge metal or equivalent and of a size and design to cover at least half of the sides of the working wheel, and extend at least 1 inch beyond the spindles.
Does a wire wheel need a guard?
Wire wheels should have at least an upper wheel cover, if cleaning large items such as axes or shovels and a full wheel cover as required for abrasive wheels with a tongue guard if doing other types of cleaning or polishing work. Wire wheel guard housings should not be equipped with tool rests.
Which part of the body is most commonly injured when using machinery?
Back Injuries — by far the most common result of unsafe manual handling.
What are the 3 most common workplace accidents?
The most common work injuries are slips, trips, and falls, overexertion, and contact with equipment. All of these injuries are mostly preventable by taking the proper precautions and adhering to OSHA’s guidelines.
Can machine guards be customized?
MG&C can add hinges, holes, slots, handles, among other types of hardware. The mounting flanges can also be customized. If a standard guard size isn’t listed, MG&C will often use a fabricated box to the customer’s dimensions.
What are the three primary categories of machine guarding?
They are:
- Guards – these are physical barriers that prevent contact.
- Devices – these limit or prevent access to the hazardous area.
- Automated Feeding and Ejection Mechanisms – These eliminate the operator’s exposure to the point of operation while handling stock (materials).
At what height must flywheels be guarded?
All sprocket wheels and chains shall be enclosed unless they are more than seven (7) feet above the floor or platform.
What is difference between guard and shield?
Answer : Guarding utilizes a low impedance conductor, which is maintained at the same potential as the high impedance circuit, to intercept any interfering voltage or current. Shielding utilizes a conductive enclosure to prevent electrostatic interference from affecting a high impedance circuit.
Are guards required for jointers?
Each hand-fed jointer with a horizontal cutting head shall have an automatic guard which will cover all the section of the head on the working side of the fence or gage. The guard shall effectively keep the operator’s hand from coming in contact with the revolving knives.
What is the maximum height of guard to avoid vertical reach?
The equivalent international standard, ISO 10218-2:2011, sets the requirements at 200 mm (7.8 inches) and 1,400 mm (55 inches), respectively. Reach over – Figure 3 shows how to determine guard height to protect against reaching over a barrier to contact a hazard.
What is one of the most common ways in which workers get hurt around machines OSHA?
Getting On and Off Equipment or Machines. According to data maintained by OSHA, the most common cause of worksite injuries associated with equipment and machines is getting on and off of equipment and machines. A key to ensuring safety getting on and off equipment and machines is to check boots and gloves.
How should a rotating shaft be guarded?
According to OSHA Standard 1910.219(c)(4)(i), a projecting shaft end protruding more than one-half the diameter of the shaft must be guarded by non-rotating caps or safety sleeves. Shafts with keyways can catch clothing easily.
What should be firmly secured to the machine?
Guards and safety devices should be made of durable material that will withstand the conditions of normal use. They must be firmly secured to the machine. Protect from falling objects: The safeguard should ensure that no objects can fall into moving parts.
What are the 5 types of machine safeguards?
Five General Classifications of Machine Safeguards
- Guards. Guards are barriers that prevent access to dangerous areas of machines.
- Devices. A safety device may perform one of several functions.
- Location/Distance.
- Potential Feeding and Ejection Methods.
- Miscellaneous Aids.
What is the purpose of machine guards?
Machine guards are your first line of defense against injuries caused by machine operaon. Each machine must have adequate safeguards to protect operators and other employees in the immediate work area from hazards created by ingoing nip points, rotang parts, sparks and flying debris.
Which safeguard is generally preferable to all other types?
Fixed Guards
This guard is usually preferable to all other types because of its relative simplicity and permanence.
Which type of guard shuts down the machine when the guard is not securely in place?
POINT-OF-OPERATION GUARDS
Interlocked guards shut down the machine if not securely in place, or if they are disengaged.