If, after review of the application, any additional information, and the inspection report, the applicant and any validating laboratory appear to have met the requirements for recognition, a written recommendation shall be submitted by the responsible OSHA personnel to the Assistant Secretary to approve the application with a supporting explanation. 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. If the increase in press stopping time exceeds the brake monitor setting limit defined in paragraph (h)(5)(iii), the test shall be considered unsuccessful, and the cause of the excessive stopping time shall be investigated. They shall be continuous, the ends being either riveted, bolted, or welded together in such a manner as to leave the inside free from projections. The procedures shall be based on pertinent OSHA standards and test methods, or other publicly available standards and test methods generally recognized as appropriate in the field, such as national consensus standards or published standards of professional societies or trade associations. (63) Authorized person means one to whom the authority and responsibility to perform a specific assignment has been given by the employer. (ii) The safety system shall be designed, constructed, and arranged as an integral total system, including all elements of the press, the controls, the safeguarding and any required supplemental safeguarding, and their interfaces with the operator and that part of the environment which has effect on the protection against point of operation hazards. (2) Couplings. The basement, tower, or room occupied by transmission equipment is locked against unauthorized entrance. The safety trip control shall be one of the following types or a combination thereof: (i) Pressure-sensitive body bars. (2) At the rear ends of frames over which feed conveyors run, sprockets and chains shall be guarded at the sides by plates projecting beyond the periphery of sprockets and the ends of lugs. 6. (x) Foot operated tripping controls, if used, shall be protected so as to prevent operation from falling or moving objects, or from unintended operation by accidental stepping onto the foot control. (9) Prime movers include steam, gas, oil, and air engines, motors, steam and hydraulic turbines, and other equipment used as a source of power. (iii) By a band guard covering the face of gear and having flanges extended inward beyond the root of the teeth on the exposed side or sides. Openings for oiling. Dp = Penetration depth factor, required to provide for possible penetration through the presence sensing field by fingers or hand before detection occurs. There are other general safety precautions which should be followed by everyone even if they dont work directly with conveyors. Any press whose safety system has not been recertified and revalidated within the preceding 12 months shall be removed from service in the PSDI mode until the safety system is recertified and revalidated. (3) Bolster plate means the plate attached to the top of the bed of the press having drilled holes or T-slots for attaching the lower die or die shoe. The manufacturer shall design a test to demonstrate that the prescribed minimum object sensitivity of the presence sensing device is met. Subpart O: Machinery and Machine Guarding, OSHA 1910 General Industry | UpCodes Subpart O Machinery and Machine Guarding Authority: 29 U.S.C. The third-party validation organization shall have legal authority to perform certification/validation activities. Momentary operation of the stop control shall immediately deactivate the clutch and apply the brake. (4) Guards for horizontal overhead rope and chain drives. (xiii) The clutch/brake control shall automatically deactivate in event of failure of the power or pressure supply for the clutch engaging means. Flywheels located so that any part is seven (7) feet or less above floor or platform shall be guarded in accordance with the requirements of this subparagraph: Cranks and connecting rods. (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. (d) Conveyors passing over areas that are occupied or used by employees shall be so guarded as to prevent the material transported from falling and causing injury to employees. (1) Forging means the product of work on metal formed to a desired shape by impact or pressure in hammers, forging machines (upsetters), presses, rolls, and related forming equipment. will bring you to those results. 1910.121 [Reserved]. Paragraph (h)(6)(xv) of the standard requires that the control system have provisions for an inch operating means; that die-setting not be done in the PSDI mode; and that production not be done in the inch mode. (xv) Selection of bar operation shall be by means capable of being supervised by the employer. If a hearing is requested, it shall be held before an administrative law judge of the Department of Labor pursuant to the rules specified in 29 CFR part 1905, subpart C. c. The parties shall be OSHA and the recognized validation organization. The adjustment shall not be made with the wheel in motion. Appendix to Subpart E of Part 1910Exit Routes, Emergency Action Plans, and Fire Prevention Plans, Subpart FPowered Platforms, Manlifts, and Vehicle-Mounted Work Platforms. Grinding is always performed on rim face, W dimension. a. Brake design parameters important to PSDI are high torque, low moment of inertia, low air volume (if pneumatic) mechanisms, non-interleaving engagement springs, and structural integrity which is enhanced by over-design. 1910.68 Manlifts. All measurements on mills and calenders shall be taken with the rolls running empty at maximum operating speed. If used, these devices shall be located so as to detect all operator locations and positions not detected by the PSDI sensing field, and shall prevent stroking or stop a stroke in process when any supplemental sensing field(s) are interrupted. (4) Clutch means the coupling mechanism used on a mechanical power press to couple the flywheel to the crankshaft, either directly or through a gear train. Where the operator feeds or removes parts by placing one or both hands in the point of operation, and a two hand control, presence sensing device, Type B gate or movable barrier (on a part revolution clutch) is used for safeguarding: (i) The employer shall use a control system and a brake monitor which comply with paragraphs (b) (13) and (14) of this section; (ii) The exception in paragraph (b)(7)(v)(d) of this section for two hand controls manufactured and installed before August 31, 1971 is not applicable under this paragraph (c)(5); (iii) The control of air clutch machines shall be designed to prevent a significant increase in the normal stopping time due to a failure within the operating valve mechanism, and to inhibit further operation if such failure does occur, where a part revolution clutch is employed. Table O-2 - Exposure Versus Wheel Thickness, Table O-4 - Minimum Dimensions for Straight Unrelieved Flanges for Wheels with Threaded Inserts or Projecting Studs. Where a disk is used, the keys or other dangerous projections not covered by disk shall be cut off or covered. (51) Slide means the main reciprocating press member. (12) Safety guard means an enclosure designed to restrain the pieces of the grinding wheel and furnish all possible protection in the event that the wheel is broken in operation. (iii) The mode selection means of paragraph (b)(7)(iii) of this section shall have at least one position for selection of the PSDI mode. (66) Certification/validation and certify/validate means the combined process of certification and validation. Each time the operational conditions are significantly changed (including environmental, application or facility changes, but excluding such changes as die changes or press relocations not involving revision to the safety system); c. When a failure of a significant component has occurred or a change has been made which may affect safety; or. [39 FR 23502, June 27, 1974, as amended at 49 FR 5323, Feb. 10, 1984; 51 FR 34561, Sept. 29, 1986; 61 FR 9240, Mar. If, after review of all documentation, tests, analyses, manufacturer's certifications, and any additional tests which the third-party validation organization believes are necessary, the third-party validation organization determines that the PSDI safety system is in full compliance with the applicable requirements of 29 CFR 1910.217(a) through (h) and this appendix A, it shall validate the manufacturer's certification that it so meets the stated requirements. Where belts are so located as to make it impracticable to carry the guard to wall or ceiling, construction of guard shall be such as to enclose completely the top and bottom runs of belt and the face of pulleys. The fourth regulation in OSHA standard 1910.178(g) requires a "conveyor, overhead hoist, or equivalent material handling equipment" to assist workers in moving forklift batteries. (iii) Air counterbalance cylinders shall incorporate means to retain the piston and rod in case of breakage or loosening. (4) Pressure pipes. (9) All belts, pulleys, gears, shafts, and moving parts shall be guarded in accordance with the specific requirements of 1910.219. Consistency of braking action is enhanced by high brake torque. The assumptions made during the analysis should be clearly stated and a description of the effects of these assumptions on the conclusions and limits should be included. Means must be provided to prevent tightener from falling, in case the belt breaks. (j) Modified Types 6 and 11 wheel (terrazzo) - blotters applied flat side of wheel only. 1910.1043 Cotton dust. (B) Guards used as supplemental safeguarding shall conform to the design, construction and application requirements of paragraph (c)(2) of this section, and shall be interlocked with the press control to prevent press PSDI operation if the guard fails, is removed, or is out of position. (See Figures O-8 and O-9. 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. Guards for horizontal overhead belts shall run the entire length of the belt and follow the line of the pulley to the ceiling or be carried to the nearest wall, thus enclosing the belt effectively. Title 29 was last amended 2/24/2023. 2 For wheels under 114 inch thick F dimension shall not exceed 40 percent of wheel thickness. 2. (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. Conduct or recertification/revalidation. Broken pulleys. Work rests shall be kept adjusted closely to the wheel with a maximum opening of one-eighth inch to prevent the work from being jammed between the wheel and the rest, which may cause wheel breakage. However,current OSHA regulations on the control of hazardous energy sources (lockout/tagout)[29 CFR 1910.147],and machine guarding [29 CFR Part 1910.212 ] are applicable to these types of equipment. (ii) The employer shall certify that employees have been trained by preparing a certification record which includes the identity of the person trained, the signature of the employer or the person who conducted the training, and the date the training was completed. (iv) An interlocked press barrier guard shall be attached to the press frame or bolster and shall be interlocked with the press clutch control so that the clutch cannot be activated unless the guard itself, or the hinged or movable sections of the guard are in position to conform to the requirements of Table O-10. The validation organization shall demonstrate competence and experience in either power press design, manufacture or use, or testing, quality control or certification/validation of equipment comparable to power presses and associated control systems. (1) Hazards to personnel associated with broken or falling machine components. On both sides of the calender and near each end of the face of the roll, there shall be a cable or wire center cord connected to the safety trip. (b) Anchoring fixed machinery. The press manufacturer's recommendations shall be followed. (e) Cylinders, cup, or segmental wheels that are mounted in chucks. (i) Spring counterbalance systems when used shall incorporate means to retain system parts in event of breakage. (vii) Means used to actuate press stroke (foot trip, foot control, hand trip, hand control, or other). 1910.1047 Ethylene oxide. 1910.211 Definitions. (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. 1910.266 Logging operations. The guard shall be constructed of heavy material, preferably metal, and the edge of the guard shall come to within three-eighths inch of the plane formed by the inside face of the feed roll in contact with the stock being cut. b. Navigate by entering citations or phrases (9) Flanges means collars, discs or plates between which wheels are mounted and are referred to as adaptor, sleeve, or back up type. 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. If unitized tooling is used, the opening between the top of the punch holder and the face of the slide, or striking pad, shall be safeguarded in accordance with the requirements of paragraph (c) of this section. a. The safety tripping devices shall be located within reach of the operator and the bite. (4) of this appendix. The provisions of paragraph (h) of this section shall apply to boltheading. (ii) The vertical clearance in passageways between the floor and power transmission beams, ceiling, or any other objects, is not less than five feet six inches (5 ft. 6 in.). All flanges shall be maintained in good condition. (v) When any check of the press, including those performed in accordance with the requirements of paragraphs (h)(10)(ii), (iii) or (iv) of this section, reveals a condition of noncompliance, improper adjustment, or failure, the press shall not be operated until the condition has been corrected by adjustment, replacement, or repair. (3) Finish and balance. This requirement pertains only to those single-stroke, two-hand controls manufactured and installed on or after August 31, 1971. 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. Where suspended counterweights are used and not guarded by location, they shall be so encased as to prevent accident. 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 employer shall establish and follow an inspection program having a general component and a directed component. (a)(1) OSHA Basics: OSHA's Special Industry Standards in Subpart R The validation organization or validating laboratory shall maintain a record of each certification/validation of a PSDI safety system, including manufacturer and/or employer certification documentation, test and working data, test report, certification/validation report, any follow-up inspections or testing, and reports of equipment failures, any reports of accidents involving the equipment, and any other pertinent information. (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. 1910.425 Surface-supplied air diving. (See Figures O-12 and O-13), (6) Swing frame grinders. 1910.1012 Ethyleneimine. (1) Boltheading. (iii) Training personnel for the proper inspection and maintenance of forging machinery and equipment. 1910.122 Table of contents. 1910.166-1910.168 [Reserved] 1910.263 Bakery equipment. The manufacturer shall certify and the OSHA-recognized third-party validation organization shall validate that: (a) The design of components, subsystems, software and assemblies meets OSHA performance requirements and are ready for the intended use; and. (5) Excluded machinery. Where a calender is so installed that persons cannot normally reach through, over, under, or around to come in contact with the roll bite or be caught between a roll and an adjacent object, then, provided such elements are made a fixed part of a calender, safety control devices listed in paragraph (c) of this section shall not apply. Machinery shall be oiled when not in motion, wherever possible. 2. Elevated clutch/brake air pressure results in longer stopping time. Integrated test of the press fully equipped to operate in the PSDI mode shall be conducted to establish the total system reaction time. This book includes the complete Part 1910 - General Industry, Part 1903 - Inspections, Citations and Proposed Penalties, 1904 - Recording and Reporting Occupational Injuries and Illnesses regulations, and Part 1928 - Occupational . (vii) Reactivation of PSDI operation following deactivation of the PSDI mode from any other cause, such as activation of the red color stop control required by paragraph (b)(7)(ii) of this section, interruption of the presence sensing field, opening of an interlock, or reselection of the number of sensing field interruptions/withdrawals required to cycle the press, shall require resetting of the set-up/reset means. 1910.212 General requirements for all machines. 1910.504Mini Respiratory Protection Program. The board enclosure shall be securely fastened to the hammer. Materials should be placed on the conveyor so that they will ride safely. (iv) A PSDI set-up/reset means shall be provided which requires an overt action by the operator, in addition to PSDI mode selection, before operation of the press by means of PSDI can be started. The safety system provision continues the concept of paragraph (b)(13) that the probability of two independent failures in the length of time required to make one press cycle is so remote as to be a negligible risk factor in the total array of equipment and human factors. Subpart PHand and Portable Powered Tools and Other Hand-Held Equipment. Where the work is applied to the wheel above the horizontal centerline, the exposure of the grinding wheel periphery shall be as small as possible and shall not exceed 60. Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. In every case the sides of trough shall extend at least two (2) inches beyond the shafting or protuberance. (1) The cutting heads of each wood shaper, hand-fed panel raiser, or other similar machine not automatically fed, shall be enclosed with a cage or adjustable guard so designed as to keep the operator's hand away from the cutting edge. 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. The PSDI safety system shall remain under certification/validation for the shorter of one year or until the system hardware is changed, modified or refurbished, or operating conditions are changed (including environmental, application or facility changes), or a failure of a critical component has occurred. The identified parts, components and subsystems shall be certified by the manufacturer to be able to withstand the functional and operational environments of the PSDI safety system. (ii) Belt shifter and clutch handles shall be rounded and be located as far as possible from danger of accidental contact, but within easy reach of the operator. (ii) A gate or movable barrier device shall protect the operator as follows: (a) A Type A gate or movable barrier device shall protect the operator in the manner specified in paragraph (c)(3)(i)(f) of this section, and. (ii) All metal should be free from burrs and sharp edges. (12) Upsetters (or forging machines, or headers) type of forging equipment, related to the mechanical press, in which the main forming energy is applied horizontally to the workpiece which is gripped and held by prior action of the dies. The explanation and use of the scale shall be documented. This is an automated process for (7) Lubrication. Stopping distances shall be expressed in inches of surface travel of the roll from the instant the emergency stopping device is actuated. 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. Paragraph (f)(1) of this section does not apply to hand-operated gears used only to adjust machine parts and which do not continue to move after hand power is removed. Type 27 and Type 28 wheels shall be used only with a safety guard located between wheel and operator during use. b. 1910.1201 Retention of DOT markings, placards and labels. Air controlling equipment shall be protected against foreign material and water entering the pneumatic system of the press. (1) Keys. Wall thickness at the back is normally greater than at the grinding face (W). In addition, a permanent label not less than 112 inches by 34 inch shall be affixed to the rear of the guard at approximately the level of the arbor, reading as follows: Danger: Do Not Rip or Plough From This End. Die keys and shims shall be made from a grade of material that will not unduly crack or splinter. 4. The employer shall provide means for handling scrap from roll feed or random length stock operations. (35) Interlocked press barrier guard means a barrier attached to the press frame and interlocked so that the press stroke cannot be started normally unless the guard itself, or its hinged or movable sections, enclose the point of operation. Immediately before mounting, all wheels shall be closely inspected and sounded by the user (ring test) to make sure they have not been damaged in transit, storage, or otherwise. 1910.1053 Respirable crystalline silica. Visors or other accessory equipment shall not be included as a part of the guard when measuring the guard opening, unless such equipment has strength equal to that of the guard. (58) Unitized tooling means a type of die in which the upper and lower members are incorporated into a selfcontained unit so arranged as to hold the die members in alignment. (1) Dull, badly set, improperly filed, or improperly tensioned saws shall be immediately removed from service, before they begin to cause the material to stick, jam, or kick back when it is fed to the saw at normal speed. The guard shall have openings no larger than one-half (12) inch. A safety trip control shall be provided in front and in back of each mill. (ii) A red color stop control shall be provided with the clutch/brake control system. All guards shall be rigidly braced every three (3) feet or fractional part of their height to some fixed part of machinery or building structure. The stopping time measurements should be made with the heaviest upper die that is planned for use in the press. (vi) Oil swabs, or scale removers, or other devices to remove scale shall be provided. They shall be located in front of the saw and so arranged as to be in continual contact with the wood being fed. (ii) Fixed or permanent lead pot installations shall be exhausted. 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. (4) Guide post hazard. The direction of the saw rotation shall be conspicuously marked on the hood. 1910.215 Abrasive wheel machinery. 1910.35 Compliance with alternate exit-route codes. 1910.1007 3,-Dichlorobenzidine (and its salts). This valve shall be closed and locked in the off position while the hammer is being adjusted, repaired, or serviced, or when the dies are being changed. (i) Blotters (compressible washers) shall always be used between flanges and abrasive wheel surfaces to insure uniform distribution of flange pressure. (8) Point of operation means that point at which cutting, shaping, or forming is accomplished upon the stock and shall include such other points as may offer a hazard to the operator in inserting or manipulating the stock in the operation of the machine. The maximum angular exposure above the horizontal plane of the wheel spindle as specified in paragraphs (b) (3) and (4) of this section shall never be exceeded, and the distance between the wheel periphery and the adjustable tongue or the end of the peripheral member at the top shall never exceed one-fourth inch. Minimum object sensitivity describes the largest acceptable size of the interruption in the sensing field. (ii) Maximum hole size for cutting-off wheels should not be larger than 14-wheel diameter. (2) Type 2 cylinder wheels means wheels having diameter, wheel thickness, and rim thickness dimensions. Clutches, cutoff couplings, or clutch pulleys having projecting parts, where such clutches are located seven (7) feet or less above the floor or working platform, shall be enclosed by a stationary guard constructed in accordance with this section. (C) The air pressure supply for clutch/brake valves on machines used in the PSDI mode shall be regulated to pressures less than or equal to the air pressure used when making the stop time measurements required by paragraph (h)(2)(ii) of this section. (ii) All presses shall be installed in such a manner that they remain where they are positioned or they are anchored to foundations sufficient to support them according to applicable engineering standards. Choosing an item from (5) Unitized tooling. When repairing or cleaning a conveyor, all equipment must be locked or blocked and operating controls tagged.
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