1910.244 Other portable tools and equipment. f. The instrument used to measure reaction time shall be calibrated to be accurate to within 0.001 second. 1910.101 Compressed gases (general requirements). Table O-1 - Minimum Basic Thickness for Peripheral and Side Members for Safety Guards Used With Cutting-Off Wheels, Table O-3 - Guide for Construction of Band Type Guards, Table O-5 - Minimum Dimensions for Straight Adaptor Flange - for Organic Bonded Wheels Over 114 Inches Thick1. (ii) Spring counterbalances when used shall have the capability to hold the slide and its attachments at midstroke, without brake applied. (ii) flat belts two (2) inches or less in width which are free from metal lacings or fasteners, (iii) round belts one-half (12) inch or less in diameter; and. 1910.264 Laundry machinery and operations. The letter will provide the specific details of the scope of the OSHA recognition as well as any conditions imposed by OSHA, including any Federal monitoring requirements. (i) Unless the distance to the nearest fixed pulley, clutch, or hanger exceeds the width of the belt used, a guide shall be provided to prevent the belt from leaving the pulley on the side where insufficient clearance exists. The certification/validation of safety systems for PSDI shall consider the press, controls, safeguards, operator, and environment as an integrated system which shall comply with all of the requirements in 29 CFR 1910.217 (a) through (h) and this appendix A. (iv) The Inch operating means shall be designed to prevent exposure of the workers hands within the point of operation by: (a) Requiring the concurrent use of both hands to actuate the clutch, or. (1) Feed rolls and saws shall be protected by a hood or guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. 1910.144 Safety color code for marking physical hazards. 1910.422 Procedures during dive. The safety guard shall be mounted so as to maintain proper alignment with the wheel, and the strength of the fastenings shall exceed the strength of the guard, except: (i) Safety guards on all operations where the work provides a suitable measure of protection to the operator, may be so constructed that the spindle end, nut, and outer flange are exposed; and where the nature of the work is such as to entirely cover the side of the wheel, the side covers of the guard may be omitted; and. By a standard guard as described in paragraph (o) of this section, at least seven (7) feet high extending six (6) inches above the mesh point of the gears; or. Calculating Safe Mounting Distances for Safeguards | EHS Today This is known as the Ring Test. (4) This section covers the principal features with which power transmission safeguards shall comply. The validation organization shall in its installation validation, state that in what circumstances, if any, the employer has advance approval for adjustment, when prior oral approval is appropriate and when prior approval must be in writing. (2) Inspection and maintenance. Pulleys, any parts of which are seven (7) feet or less from the floor or working platform, shall be guarded in accordance with the standards specified in paragraphs (m) and (o) of this section. (ii) The motor start button shall be protected against accidental operation. As an added precaution to the requirements in paragraph (h)(2)(iii), brake adjustment locking means should be secured. If such a guard is constructed of sheet metal, the material used shall be not less than one-sixteenth inch in thickness; and if cast iron is used, it shall not be less than three-sixteenths inch in thickness. (ii) All major assemblies and fittings which can loosen and fall shall be properly secured in place. (4) Type 11 flaring cup wheels mean wheels having double diameter dimensions D and J, and in addition have thickness, hole size, rim and back thickness dimensions. This content is from the eCFR and may include recent changes applied to the CFR. The requirements of this paragraph are also applicable to sliding cutoff saws mounted above the table. Forging hammers, counterblow equipment and high-energy-rate forging machines impart impact to the workpiece, while most other types of forging equipment impart squeeze pressure in shaping the stock. (iv) The following are some of the machines which usually require point of operation guarding: (4) Barrels, containers, and drums. When the periphery of the blades of a fan is less than seven (7) feet above the floor or working level, the blades shall be guarded. (A) A check shall be performed using the test rod according to the presence sensing device manufacturer's instructions to determine that the presence sensing device used for PSDI is operational. Design certification/validation for a new safety system, i.e., a new design or new integration of specifically identified components and subsystems, would entail a single certification/validation which would be applicable to all identical safety systems. (c) The device shall be constructed so that a failure within the system does not prevent the normal stopping action from being applied to the press when required, but does prevent the initiation of a successive stroke until the failure is corrected. Ample room for cleaning machines, handling material, work pieces, and scrap shall also be provided. We recommend you directly contact the agency responsible for the content in question. (3) Work area. (iii) Special Revolving Cup Guards which mount behind the wheel and turn with it. The machine guarding standard, 29 Code of Federal Regulations (CFR 1910.212), always seems to make OSHA's Top 10 Most Frequently Cited list. The bottom of the guard should come down to within three-eighths inch of a plane formed by the bottom or contact face of the feed roll where it touches the stock. 1910.1006 Methyl chloromethyl ether. Such a device shall not depend for its proper functioning upon any rope, cord, or spring. This subparagraph does not apply to keys or setscrews within gear or sprocket casings or other enclosures, nor to keys, setscrews, or oilcups in hubs of pulleys less than twenty (20) inches in diameter where they are within the plane of the rim of the pulley. 4. ), Wherever the nature of the work requires contact with the wheel below the horizontal plane of the spindle, the exposure shall not exceed 125. Limitation: Minimum back thickness, E dimension, should not be less than one-fourth T dimension. (9) Push sticks or push blocks shall be provided at the work place in the several sizes and types suitable for the work to be done. These guards shall cover at least the unused part of the periphery of the cutting head. 1910.11 Scope and purpose. (iv) Mechanical power presses with a configuration which would allow a person to enter, pass through, and become clear of the sensing field into the hazardous portion of the press shall not be used in the PSDI mode of operation. Where light curtain object sensitivity is user-adjustable, either discretely or continuously, design features shall limit the minimum object sensitivity adjustment not to exceed one and one-fourth inches (31.75 mm). (7) Direct drive means the type of driving arrangement wherein no clutch is used; coupling and decoupling of the driving torque is accomplished by energization and deenergization of a motor. The failure shall be indicated by the system. a. The interior surface of all guards, by which is meant the surface of the guard with which a belt will come in contact, shall be smooth and free from all projections of any character, except where construction demands it; protruding shallow roundhead rivets may be used. Each reaction time required to calculate the Safety Distance, including the brake monitor setting, shall be documented in separate reaction time tests. (49) Single stroke means one complete stroke of the slide, usually initiated from a full open (or up) position, followed by closing (or down), and then a return to the full open position. [Reserved], https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1910/subpart-O. b. 1910.1014 2-Acetylaminofluorene. The employer shall insure by adequate supervision that correct operating procedures are being followed. (65) Validation or validate means for PSDI safety systems that an OSHA recognized third-party validation organization: (i) For design certification/validation has reviewed the manufacturer's certification that the PSDI safety system meets the requirements of 1910.217 (a) through (h) and appendix A and the underlying tests and analyses performed by the manufacturer, has performed additional tests and analyses which may be required by 1910.217 (a) through (h) and appendix A, and concludes that the requirements of 1910.217 (a) through (h) and appendix A have been met; and. 1910.126 Additional requirements for special dipping and coating operations. The following Occupational Safety and Health Administration (OSHA) laws and regulations are most commonly applied to industrial machinery: OSHA 29 CFR 1910 General Industry Regulations OSHA 29 CFR 1910.211 Definitions OSHA 29 CFR 1910.212 General Requirements for Guarding All Machines OSHA 29 CFR 1910.213 Woodworking Machinery Requirements (14) Holdout or restraint device means a mechanism, including attachments for operator's hands, that when anchored and adjusted prevent the operator's hands from entering the point of operation. Regulation 1910.178(g)(2) also mandates "adequate ventilation" in battery charging areas. (1) Safety cylinder head. Machine Safety Standards | UL Solutions The use in the formula of twice the stopping time increase, Tm, allowed by the brake monitor for brake wear allows for greater increases in the downstroke stopping time than occur in normal stopping time at the top of the stroke. The stop control shall override any other control, and reactuation of the clutch shall require use of the operating (tripping) means which has been selected. (b) Mechanical power press guarding and construction, general -. It shall be accessible and shall operate readily on contact. Comments or questions about document content can not be answered by OFR staff. Cup wheels (Types 6 and 11) shall be protected by: (i) Safety guards as specified in paragraphs (b) (1) through (10) of this section; (ii) Band type guards as specified in paragraph (b)(11) of this section; and. (3) Machines using full revolution positive clutches. All power-transmission equipment shall be inspected at intervals not exceeding 60 days and be kept in good working condition at all times. (o) Profile and swing-head lathes and wood heel turning machine. Validation for Design Certification/Validation. A controlled clearance between the wheel hole and the machine spindle (or wheel sleeves or adaptors) is essential to avoid excessive pressure from mounting and spindle expansion. The guard shall be fastened to the frame carrying the rolls so as to remain in adjustment for any thickness of stock. (5) Additional requirements for safe-guarding. Solid material used for this purpose shall be of an equivalent strength and firmness. (e) The safety distance (Ds) from the sensing field to the point of operation shall be greater than the distance determined by the following formula: Ds = minimum safety distance (inches); 63 inches/second = hand speed constant; Ts = stopping time of the press measured at approximately 90 position of crankshaft rotation (seconds). Where any portion of the train of gears guarded by a band guard is less than six (6) feet from the floor a disk guard or a complete enclosure to the height of six (6) feet shall be required. OSHA regulates conveyors specifically in its construction rule at 29 CFR 1926.555, and the general use of such equipment is regulated under general industry and contruction rules for lockout/tagout, machine guarding, signs, signals, and barricades, and under the General Duty Clause. 1910.261 - Occupational Safety and Health Administration Search & Navigation Nor would it be necessary to repeat these tests in the case of modifications where determined by the manufacturer and validated by the third-party validation organization to be equivalent by similarity analysis. The upper run shall be so guarded as to prevent contact therewith either by the worker or by objects carried by him. Posts shall be not more than eight (8) feet apart; they are to be permanent and substantial, smooth, and free from protruding nails, bolts, and splinters. Table O-11 - Strength and Dimensions for Wood Ram Props. The validation organization or the validating laboratory shall own a registered certification/validation mark or logo. Wheels should be tapped gently with a light nonmetallic implement, such as the handle of a screwdriver for light wheels, or a wooden mallet for heavier wheels. Tongs shall be of sufficient length to clear the body of the worker in case of kickback, and shall not have sharp handle ends. This exposure shall begin at a point not less than 15 below the horizontal plane of the wheel spindle. (ii) Where explosives, explosive dusts, flammable vapors or flammable liquids exist, the hazard of static sparks from shafting shall be carefully considered. a. Similarly, only presses with a configuration such that a person's body cannot completely enter the bed area are approved for PSDI. Failure to observe these rules might cause excessive flange pressure around the hole of the wheel. (2) Boring bits should be provided with a guard that will enclose all portions of the bit and chuck above the material being worked. They shall be located in front of the saw and so arranged as to be in continual contact with the wood being fed. (2) It is recommended, however, that no projecting setscrews or oilcups be used in any revolving pulley or part of machinery. It is expected that the brake monitor adjustment normally could be evaluated on the basis of the effect on the safety system certification/validation documentation retained by the validation organization. (2) Ambient relative humidity of 99 percent. (50) Single stroke mechanism means an arrangement used on a full revolution clutch to limit the travel of the slide to one complete stroke at each engagement of the clutch. (d) Fluid compatability with other materials, (d) Material stress tolerances and limits, (e) Stability to long term power fluctuations, (g) Repeatability of measured parameter without inadvertent initiation of a press stroke, (h) Operational life of components in cycles, hours, or both, (1) Specific operational wave lengths; and. 5. (1) Veneer slicer knives shall be guarded to prevent accidental contact with knife edge, at both front and rear. [39 FR 23502, June 27, 1974, as amended at 39 FR 41846, Dec. 3, 1974; 40 FR 3982, Jan. 27, 1975; 43 FR 49750, Oct. 24, 1978; 45 FR 8594, Feb. 8, 1980; 49 FR 18295, Apr. It shall be the responsibility of any person modifying a power press to furnish instructions with the modification to establish new or changed guidelines for use and care of the power press so modified. Workers who operate and maintain machinery suffer approximately 18,000 amputations, lacerations, crushing injuries, abrasions, and over 800 deaths per year. 1910.26 Dockboards. (i) The cone belt and pulley shall be equipped with a belt shifter so constructed as to adequately guard the nip point of the belt and pulley. (OSHA 3170-02R, 2007) Title: Microsoft Word - FS Conveyors2.doc Author: rudnick Created Date: 11/18/2011 5:41:31 PM . In engine rooms a guardrail, preferably with toeboard, may be used instead of the guard required by paragraph (k)(1) of this section, provided such a room is occupied only by engine room attendants. The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. This responsibility includes: (i) Establishing periodic and regular maintenance safety checks and keeping certification records of these inspections which include the date of inspection, the signature of the person who performed the inspection and the serial number, or other identifier, for the forging machine which was inspected. Industrial Conveyor Belts & Hose; Industrial/MRO/Safety; Machine & Automation Solutions; . (6) Trimming presses mean a class of auxiliary forging equipment which removes flash or excess metal from a forging. (d) As used in 1910.217, unless the context clearly requires otherwise, the following power press terms shall have the meaning prescribed in this paragraph. It is the intent of paragraph (h)(7) that control components be provided with inherent design protection against operating stresses and environmental factors affecting safety and reliability. The term manufacturers refers to the manufacturer of any of the components of the safety system. Following a deactivation of PSDI by the timer, the system shall make it necessary to reset the set-up/reset means in order to reactivate the PSDI mode. If you work for a Federal agency, use this drafting Press brakes, hydraulic and pneumatic power presses, bulldozers, hot bending and hot metal presses, forging presses and hammers, riveting machines and similar types of fastener applicators are excluded from the requirements of this section. 1910.156 Fire brigades. "Employers want to make sure their equipment is safe to operate," says McCullough. In overhead silent chain-drive guards where the chain is held from lateral displacement on the sprockets, the side clearances required on drives of twenty (20) inch centers or under shall be not less than one-fourth inch from the nearest moving chain part, and on drives of over twenty (20) inch centers a minimum of one-half inch from the nearest moving chain part. (v) An indicator visible to the operator and readily seen by the employer shall be provided which shall clearly indicate that the system is set-up for cycling in the PSDI mode. Click on the image to download the training you need, and they will be automatically downloaded. 3. OSHA Safety Training PowerPoints - EHS Safety News America (62) Safety system means the integrated total system, including the pertinent elements of the press, the controls, the safeguarding and any required supplemental safeguarding, and their interfaces with the operator, and the environment, designed, constructed and arranged to operate together as a unit, such that a single failure or single operating error will not cause injury to personnel due to point of operation hazards. Side grinding wheel having a wall flared or tapered outward from the back. (ii) Posts shall be not more than eight (8) feet apart; they are to be permanent and substantial, smooth, and free from protruding nails, bolts, and splinters. (ii) The point of operation of machines whose operation exposes an employee to injury, shall be guarded. An application may be revised by an applicant at any time prior to the completion of the final staff recommendation. 1910.112-1910.113 [Reserved] 1910.119 Process safety management of highly hazardous chemicals. a. Subpart PHand and Portable Powered Tools and Other Hand-Held Equipment. Enhanced content is provided to the user to provide additional context. Energy delivered during each stroke may be varied. Higher voltages that may be necessary for operation of machine or control mechanisms shall be isolated from any control mechanism handled by the operator, but motor starters with integral Start-Stop buttons may utilize line voltage control. 1910.4 Amendments to this part. (ii) Straight flanges of the adaptor or sleeve type (Table O-7 and Figures O-33 and O-34) shall be undercut so that there will be no bearing on the sides of the wheel within one-eighth inch of the arbor hole. (6) Emphasis is placed upon the importance of maintaining cleanliness around woodworking machinery, particularly as regards the effective functioning of guards and the prevention of fire hazards in switch enclosures, bearings, and motors. (7) Circular saw gages shall be so constructed as to slide in grooves or tracks that are accurately machined, to insure exact alignment with the saw for all positions of the guide. (4) Pulley speeds. (iv) All a.c. control circuits and solenoid value coils shall be powered by not more than a nominal 120-volt a.c. supply obtained from a transformer with an isolated secondary. In the second stage, the OSHA-recognized third-party validation organization validates that the PSDI safety system meets the requirements of 29 CFR 1910.217 (a) through (h) and this appendix A and the manufacturer's certification by reviewing the manufacturer's design and test data and performing any additional reviews required by this standard or which it believes appropriate. (2) Foot operated devices. (6) Where two or more workers are employed at the same time on the same power-driven guillotine veneer cutter equipped with two-hand control, the device shall be so arranged that each worker shall be required to use both hands simultaneously on the controls to start the cutting motion, and at least one hand on a control to complete the cut. All manually operated valves and switches shall be clearly identified and readily accessible. All manually operated valves and switches shall be clearly identified and readily accessible. 2. Types of Tests Acceptable for Certification/Validation. Materials should be placed on the conveyor so that they will ride safely. (j) Bearings and facilities for oiling.
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