(viii) Number of operators required for the operation and the number of operators provided with controls and safeguards. 1910.176 Handling materialsgeneral. 1910.18 Changes in established Federal standards. 1910.1002 Coal tar pitch volatiles; interpretation of term. f. The applicant shall certify that the information submitted is accurate. (ii) Maximum hole size for cutting-off wheels should not be larger than 14-wheel diameter. b. (i) The operator training required by paragraph (f)(2) of this section shall be provided to the employee before the employee initially operates the press and as needed to maintain competence, but not less than annually thereafter. (iv) Air piping shall conform to the specifications of the ANSI B31.1.0-1967, Power Piping with Addenda issued before April 28, 1971, which is incorporated by reference as specified in 1910.6. There shall be no rough surfaces or sharp edges. 2. If the preliminary decision is in favor of recognition, a member of the public, or if the preliminary decision is against recognition, the applicant may request a public hearing by the close of the comment period, if it supplies detailed reasons and evidence challenging the basis of the Assistant Secretary's preliminary decision and justifying the need for a public hearing to bring out evidence which could not be effectively supplied through written submissions. (8) Die handling. 1910.137 Electrical protective equipment. 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. B. Analytical methods may be used in lieu of, in combination with, or in support of tests to satisfy specification requirements. (i) The pedal mechanism shall be protected to prevent unintended operation from falling or moving objects or by accidental stepping onto the pedal. 1910.3 Petitions for the issuance, amendment, or repeal of a standard. 1910.219 Mechanical power-transmission apparatus. Every saw shall be provided with a guard of not less than one-eighth inch sheet metal positioned to stop flying sparks. to 16,5 S.F.P.M.1. (2) Arbors and mandrels shall be constructed so as to have firm and secure bearing and be free from play. 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. After hearing. The materials and dimensions specified in this paragraph shall apply to all guards, except horizontal overhead belts, rope, cable, or chain guards more than seven (7) feet above floor, or platform. A means of air lubrication shall be provided when needed. 49 CFR 172.101 (3) Feed rolls shall be guarded by a hood or suitable guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. Inch is a function used by the die setter for setup of dies and tooling, but is not intended for use during production operations by the operator. Safety guards of the types described in subparagraphs (3) and (4) of this paragraph, where the operator stands in front of the opening, shall be constructed so that the peripheral protecting member can be adjusted to the constantly decreasing diameter of the wheel. Showing movable guard with opening small enough to give required protection for smallest size wheel used. (2) Hydraulic forging presses. (C) Maintain a certification record of each inspection, and each maintenance and repair task performed, under the general component of the inspection program that includes the date of the inspection, maintenance, or repair work, the signature of the person who performed the inspection, maintenance, or repair work, and the serial number, or other identifier, of the power press inspected, maintained, and repaired. A validation organization may not terminate its installation certification and recertification validation functions earlier than either one year from the date of the written notice, or the date on which another recognized validation organization is able to perform the validation of installation certification and recertification. (2) Open framehammers (or blacksmith hammers) mean hammers used primarily for the shaping of forgings by means of impact with flat dies. Preliminary approval. The renewal request will be processed in accordance with subsection I.B. 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) The clutch shall release and the brake shall be applied when the external clutch engaging means is removed, deactivated, or deenergized. (56) Turnover bar means a bar used in die setting to manually turn the crankshaft of the press. 1910.1096 Ionizing radiation. Any detected broken or unserviceable springs shall be replaced before the test is conducted. (i) 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 or sides and bottom of shafting as location requires. Specifications Met: ANSI Z359.14, OSHA 1910.66, OSHA 1926.502 ; 3M Protecta Fall Protection AD120BC Rebel Self-Retracting Lifeline With Swivel Hook, 310 lb Load . (iii) Full revolution mechanical power presses shall not be used in the PSDI mode of operation. Tp = Longest presence sensing device response time, in seconds. When more than one wheel is mounted between a single set of flanges, wheels may be cemented together or separated by specially designed spacers. When a press is equipped for PSDI operation, it is recommended that the presence sensing device be active as a guarding device in other production modes. a. (ii) Where speeds above 250 feet per minute as measured on the surface of the drive roll are used, stopping distances of more than 134 percent are permissible. (2) Each swing cutoff saw shall be provided with an effective device to return the saw automatically to the back of the table when released at any point of its travel. (3) Conveyors. 1910.213 Woodworking machinery requirements. (i) Projecting shaft ends shall present a smooth edge and end and shall not project more than one-half the diameter of the shaft unless guarded by nonrotating caps or safety sleeves. For that reason, the prohibitions against die-setting in the PSDI mode, and against production in the inch mode are cited to emphasize that inch operation is of reduced safety and is not compatible with PSDI or other production modes. Only part revolution type mechanical power presses are approved for PSDI. In addition, the brake monitor shall be adjusted during installation certification to prevent successive stroking of the press if increases in stopping time cause an increase in the safety distance above that required by paragraph (h)(9)(v) of this section. This monitor shall stop slide motion and prevent successive press strokes if decoupling occurs, or if the monitor itself fails. broken springs). 1910.309-1910.330 [Reserved], 1910.331 Scope. The validation organization shall demonstrate that: a. The guard for the portion of the blade between the sliding guide and the upper-saw-wheel guard shall protect the saw blade at the front and outer side. 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. Pulleys with cracks, or pieces broken out of rims, shall not be used. (b) Portable wheels with threaded inserts or projecting studs. (1) Feed rolls of self-feed sanding machines shall be protected with a semicylindrical guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. SOURCE: 39 FR 23502, June 27, 1974, unless otherwise noted. In lieu of such yielding sectional rolls, suitable section kickback finger devices shall be provided at the infeed end. Organization and Purpose (2) Each self-feed circular ripsaw shall be provided with sectional non-kickback fingers for the full width of the feed rolls. It should also be noted that organic bonded wheels do not emit the same clear metallic ring as do vitrified and silicate wheels. b. It is necessary to maintain clearance between the wheel side and the guard. (5) Exposure of blades. (5) Saw frames or tables shall be constructed with lugs cast on the frame or with an equivalent means to limit the size of the saw blade that can be mounted, so as to avoid overspeed caused by mounting a saw larger than intended. Appendix E to Subpart L of Part 1910Test Methods for Protective Clothing, Subpart MCompressed Gas and Compressed Air Equipment. 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. Such a device shall not depend for its proper functioning upon any rope, cord, or spring. In every case the sides of trough shall extend at least two (2) inches beyond the shafting or protuberance. (3) Block means a short block of wood, provided with a handle similar to that of a plane and a shoulder at the rear end, which is used for pushing short stock over revolving cutters. Where guard is exposed to contact with moving equipment, additional strength may be necessary. e-CFR 1910.219 (a) General requirements. (g) Enclosing the point of operation before a press stroke can be initiated, so as to prevent an operator from reaching into the point of operation prior to die closure or prior to cessation of slide motion during the downward stroke. Integrated Tests Certification/Validation. This requirement pertains only to those single-stroke, two-hand controls manufactured and installed on or after August 31, 1971. [Reserved] The scope of the appendix includes the three categories of certification/validation required by the PSDI standard: Design Certification/Validation, Installation Certification/Validation, and Annual Recertification/Revalidation. (8) Concurrent means acting in conjunction, and is used to describe a situation wherein two or more controls exist in an operated condition at the same time. This requirement shall not apply to natural sandstone wheels or metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface. 1910.1027 Cadmium. (xv) Selection of bar operation shall be by means capable of being supervised by the employer. (i) Guardrail shall be forty-two (42) inches in height, with midrail between top rail and floor. (2) All knives and cutting heads of woodworking machines shall be kept sharp, properly adjusted, and firmly secured. It is recommended that old installations be changed to conform to this rule. (10) It is recommended that each power-driven woodworking machine be provided with a disconnect switch that can be locked in the off position. This exception also is referred to as the "minor servicing exception." (2) Cutting heads on wood-turning lathes, whether rotating or not, shall be covered as completely as possible by hoods or shields. (ix) Diamond wheels, except certain vitrified diamond wheels. (19) Die builder means any person who builds dies for power presses. 553. (ii) The PSDI mode shall not be used for die setting or set-up. A. Certification/validation of hardware design below the system level should be accomplished by test and/or analysis. The sides of the lower exposed portion of the blade shall be guarded to the full diameter of the blade by a device that will automatically adjust itself to the thickness of the stock and remain in contact with stock being cut to give maximum protection possible for the operation being performed. Grinding is performed on the rim face only, dimension W. Cylinder wheels may be plain, plate mounted, inserted nut, or of the projecting stud type. 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. (o) Profile and swing-head lathes and wood heel turning machine. The recognition of each validation organization will be valid for five years, unless terminated before or renewed after the expiration of the period. A test report shall be prepared for each PSDI safety system that is tested. 1910.2 Definitions. This exposure shall begin at a point not less than 15 below the horizontal plane of the wheel spindle. (9) All belts, pulleys, gears, shafts, and moving parts shall be guarded in accordance with the specific requirements of 1910.219. If made of metal shapes or bars, their section shall be equal in strength to that of one and one-half (112) by one and one-half (112) by three-sixteenths (316) inch angle iron. (i) Where both runs of horizontal belts are seven (7) feet or less from the floor level, the guard shall extend to at least fifteen (15) inches above the belt or to a standard height except that where both runs of a horizontal belt are 42 inches or less from the floor, the belt shall be fully enclosed in accordance with paragraphs (m) and (o) of this section. (11) Rivet making machines mean the same as upsetters and boltheaders when producing rivets with stock diameter of 1-inch or more. As an added precaution to the requirements in paragraph (h)(2)(iii), brake adjustment locking means should be secured. 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 . All points not readily accessible shall have oil feed tubes if lubricant is to be added while machinery is in motion. Showing movable guard with size of opening correct for full size wheel but too large for smaller wheels. (B) The air supply for pneumatic clutch/brake control valves shall incorporate a filter, an air regulator, and, when necessary for proper operation, a lubricator. (i) It shall be the responsibility of the employer to provide and insure the usage of point of operation guards or properly applied and adjusted point of operation devices on every operation performed on a mechanical power press. (vii) Where presence sensing device location is adjustable, adjustment shall require the use of a special tool available only to authorized persons. (ii) Unused keyways shall be filled up or covered. (2) Couplings. Inclined and vertical shafts, particularly inclined idler shafts, shall be securely held in position against endwise thrust. If the belt is of the endless type or laced with rawhide laces, and a belt shifter is not desired, the belt will be considered guarded if the nip point of the belt and pulley is protected by a nip point guard located in front of the cone extending at least to the top of the largest step of the cone, and formed to show the contour of the cone in order to give the nip point of the belt and pulley the maximum protection. a. Operation of the Inch operating means engages the driving clutch so that a small portion of one stroke or indefinite stroking can occur, depending upon the length of time the Inch operating means is held operated. developer resources. 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. Cast iron (min. After installation of point of operation guards and before a job is released for operation a check should be made to verify that the guard will prevent the operator's hands from reaching the point of operation. The stroking selector generally includes positions for Off (Clutch Control), Inch, Single Stroke, and Continuous (when Continuous is furnished). The work rest shall be securely clamped after each adjustment. 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. 1910.421 Pre-dive procedures. 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. (7) Type 27A depressed center, cutting-off wheels mean wheels having diameter, thickness, and hole size dimensions. 1910.28 Duty to have fall protection and falling object protection. The time increase allowed shall be limited to no more than 10 percent of the longest press stopping time measured at the top of the stroke, or 10 milliseconds, whichever is longer. (iv) Type of safeguard(s) being used (two hand control, two hand trip, pullouts, sweeps, or other). The hazard created by a guide post (when it is located in the immediate vicinity of the operator) when separated from its bushing by more than one-fourth inch shall be considered as a point of operation hazard and be protected in accordance with paragraph (c) of this section. 1910.420 Safe practices manual. Minimum object sensitivity describes the largest acceptable size of the interruption in the sensing field. Vertical belts. If it so determines, it shall revalidate the employer's recertification that the PSDI system is in full conformance with all requirements of 29 CFR 1910.217(a) through (h) and this appendix A. (2) Where an exhaust system is used, the guards shall form part or all of the exhaust hood and shall be constructed of metal of a thickness not less than that specified in paragraph (h)(1) of this section. (6) Multiple wheel mounting. Each continuous line of shafting shall be secured in position against excessive endwise movement. In no case shall a warning device of leather or other material attached to the spindle be acceptable. (54) Stroking selector means the part of the clutch/brake control that determines the type of stroking when the operating means is actuated. (i) Blotters (compressible washers) shall always be used between flanges and abrasive wheel surfaces to insure uniform distribution of flange pressure. Class 20. (iv) Prevents the initiation of a stroke, or stops of stroke in progress, when there is an intrusion through the sensing field by any part of the operator's body or by any other object. "Published Edition". Diamond and reinforced wheels are included. 4. Where guard is exposed to contact with moving equipment additional strength may be necessary. 1910.16 Longshoring and marine terminals. Similarly, only presses with a configuration such that a person's body cannot completely enter the bed area are approved for PSDI. All revolving collars, including split collars, shall be cylindrical, and screws or bolts used in collars shall not project beyond the largest periphery of the collar. (5) On each machine operated by electric motors, positive means shall be provided for rendering such controls or devices inoperative while repairs or adjustments are being made to the machines they control. 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. 1910.36 Design and construction requirements for exit routes. Title 29 was last amended 2/24/2023. (ii) An automatic guard which will remove the hands of the operator from the danger zone at every descent of the blade, used in conjunction with one-hand starting devices which require two distinct movements of the device to start the cutting motion, and so designed as to return positively to the nonstarting position after each complete cycle of the knife.
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