1. (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. 1910.1450 Occupational exposure to hazardous chemicals in laboratories. 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. When brake wear or other factors extend press stopping time beyond the limit permitted by the brake monitor, adjustment, repair, or maintenance shall be performed on the brake or other press system element that extends the stopping time. The stopping time measurements should be made with the heaviest upper die that is planned for use in the press. (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. 1910.158 Standpipe and hose systems. Such tools shall not be in lieu of other guarding required by this section, but can only be used to supplement protection provided. result, it may not include the most recent changes applied to the CFR. 1. Ample room for cleaning machines, handling material, work pieces, and scrap shall also be provided. (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. 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. (f) It shall offer maximum visibility of the point of operation consistent with the other requirements. (57) Two-hand trip means a clutch actuating means requiring the concurrent use of both hands of the operator to trip the press. (iii) The brake monitor setting shall allow an increase of no more than 10 percent of the longest stopping time for the press, or 10 milliseconds, whichever is longer, measured at the top of the stroke. This is in addition to the report of injury required by paragraph (g) of this section; however, a copy of that report may be used for this purpose. When flywheel extends into pit or is within 12 inches of floor, a standard toeboard shall also be provided; (iii) When the upper rim of flywheel protrudes through a working floor, it shall be entirely enclosed or surrounded by a guardrail and toeboard. The certification/validation report shall be signed by the Administrative Director and the Technical Director. Spacers shall be equal in diameter to the mounting flanges and have equal bearing surfaces. Regulations Respecting Occupational Health and Safety, Decree 885-2001, 5-2.1, r.19.01, July 2001. (1) Feed chains and sprockets of all double end tenoning machines shall be completely enclosed, except for that portion of chain used for conveying the stock. 1910.269 Electric power generation, transmission, and distribution. Mines. (2) Drag saws shall be so located as to give at least a 4-foot clearance for passage when the saw is at the extreme end of the stroke; or if such clearance is not obtainable, the saw and its driving mechanism shall be provided with a standard enclosure. Eligibility. (v) The safety distance (Ds) from the sensing field of the presence sensing device to the point of operation shall be greater than or equal to the distance determined by the formula: Hs = Hand speed constant of 63 inches per second (1.6 m/s). (29) Manual feeding means feeding wherein the material or part being processed is handled by the operator on each stroke of the press. above floor level. The sides of the trough shall come within at least six (6) inches of the underside of table, or if shafting is located near floor within six (6) inches of floor. Any detected broken or unserviceable springs shall be replaced before the test is conducted. (v) The PSDI mode of operation shall be used only for normal production operations. ), (5) Surface grinders and cutting-off machines. (3) Sprockets and chains. If you have comments or suggestions on how to improve the www.ecfr.gov website or have questions about using www.ecfr.gov, please choose the 'Website Feedback' button below. The validation organization shall notify the appropriate product manufacturer(s) of any reports from employers of point of operation injuries which occur while a press is operated in a PSDI mode. 1910.6 Incorporation by reference. Such stresses shall not so affect the control system as to cause unsafe operation. 3. (4) Power controls and operating controls should be located within easy reach of the operator while he is at his regular work location, making it unnecessary for him to reach over the cutter to make adjustments. 1 Note: Must be large enough to extend beyond the bushing. (b) Where passage is regarded as necessary, there shall be a platform over the lower run guarded on either side by a railing completely filled in with wire mesh or other filler, or by a solid barrier. A copy of the certification/validation report shall be maintained on file at the validation organization and/or validating laboratory, and shall be available to the public upon request. 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. Acceptable design features shall demonstrate, in the following order or precedence, that: (1) No single failure points may cause injury; or. (33) Die enclosure guard means an enclosure attached to the die shoe or stripper, or both, in a fixed position. Revolving drums, barrels, and containers shall be guarded by an enclosure which is interlocked with the drive mechanism, so that the barrel, drum, or container cannot revolve unless the guard enclosure is in place. e-CFR 1910.219 (a) General requirements. (3) Bearings. (ii) The operating levers on hand-tripped presses having more than one operating station shall be interlocked to prevent the tripping of the press except by the concurrent use of all levers. 2. 14, 1988; 54 FR 24333, June 7, 1989; 61 FR 9240, Mar. The Type 27 A Wheel is mounted between flat non-relieved flanges of equal bearing surfaces. 1910.333 Selection and use of work practices. 1910.23 Ladders. (See Figures O-18, O-19, O-20, O-21, O-22, and O-23.). 1910.16 Longshoring and marine terminals. c. The applicant shall provide information demonstrating that it and any validating laboratory utilized meet the program requirements set forth in section III of this appendix. Test results obtained from development testing may be used to certify/validate the design. 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. (53) Stripper means a mechanism or die part for removing the parts or material from the punch. 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. 1910.303 General. (xii) The clutch/brake control shall incorporate an automatic means to prevent initiation or continued activation of the Single Stroke or Continuous functions unless the press drive motor is energized and in the forward direction. (1) Each hand-fed planer and jointer with horizontal head shall be equipped with a cylindrical cutting head, the knife projection of which shall not exceed one-eighth inch beyond the cylindrical body of the head. Selection of PSDI mode and the number of interruptions/withdrawals of the light sensing field required to initiate a press cycle shall be by means capable of supervision by the employer. The eCFR is displayed with paragraphs split and indented to follow The safety requirements of this subparagraph apply to lead casts or other use of lead in the forge shop or die shop. (1) Hot trimming presses. (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. b. 3. (6) Tonnage, stroke, and weight designation. 1910.169 Air receivers. (ii) The point of operation of machines whose operation exposes an employee to injury, shall be guarded. (i) Air valve and air pressure supply/control. Further, each operator shall be provided with a set-up/reset means that meets the requirements of paragraph (h)(6) of this section, and which must be actuated to initiate operation of the press in the PSDI mode. (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. On presses with provision for manual lubrication of flywheel or bullgear bearings, lubrication shall be provided according to the press manufacturer's recommendations. This checklist covers regulations issued by the U.S. Department of Labor, Occupational Safety and Health Administration (OSHA) under the general industry standard 29 CFR 1910.23. D. Similarity analysis may be used in lieu of tests where it can be shown that the article is similar in design, manufacturing process, and quality control to another article that was previously certified/validated in accordance with equivalent or more stringent criteria. Grinding is always performed on rim face, W dimension. (1) All projecting keys, setscrews, and other projections in revolving parts shall be removed or made flush or guarded by metal cover. will bring you directly to the content. 2. The maximum anticipated working pressures in any hydraulic system on a mechanical power press shall not exceed the safe working pressure rating of any component used in that system. (1) Point of operations means that point at which cutting, shaping, boring, or forming is accomplished upon the stock. Where guard is exposed to contact with moving equipment additional strength may be necessary. The intent of paragraph (h)(9)(iii) is to prohibit use of mirrors to bend a single light curtain sensing field around corners to cover more than one side of a press. It shall be the responsibility of the employer to maintain all forge shop equipment in a condition which will insure continued safe operation. (40) Jog means an intermittent motion imparted to the slide by momentary operation of the drive motor, after the clutch is engaged with the flywheel at rest. General. c. Its employees are secure from discharge resulting from pressures from manufacturers, suppliers, vendors, employers or employee representatives. 1910.147 The control of hazardous energy (lockout/tagout). (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. (i) Presses operated in the PSDI mode shall be equipped with a brake monitor that meets the requirements of paragraphs (b)(13) and (b)(14) of this section. here. (ii) Under the directed component of the inspection program, the employer shall: (A) Inspect and test each press on a regular basis at least once a week to determine the condition of the clutch/brake mechanism, antirepeat feature, and single-stroke mechanism; (B) Perform and complete necessary maintenance or repair, or both, on the clutch/brake mechanism, antirepeat feature, and single-stroke mechanism before operating the press; and. The safety factor and/or derated percentage shall be specifically noted and complied with. When the bearing surfaces become worn, warped, sprung, or damaged they should be trued or refaced. (1) Machine guarding. 1910.308 Special systems. (n) Planing, molding, sticking, and matching machines. If there are no valid requests for a hearing, based on the application, supporting documents, staff recommendation, evidence and public comment, the Assistant Secretary shall issue the final decision (including reasons) of the Department of Labor on whether the applicant has demonstrated by a preponderance of the evidence that it meets the requirements for recognition. (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.). It should be noted that the sensing device would be by-passed in the inch mode. The variance in flange diameters, the adaptor nut being less than one-third wheel diameter, and the use of side pressure in wheel operation limits the use to reinforced organic bonded wheels. 7, 1996]. 1 Flanges shall be of steel, quality SAE 1040 or equivalent, annealed plate, heat treated to R. 25-30. While the brake monitor setting is based on the stopping time it actually measures, i.e., the normal stopping time at the top of the stroke, it is important that the safety distance be computed from the longest stopping time measured at any of the indicated three downstroke stopping positions listed in the explanation of Ts. (i) Shafting shall be kept in alignment, free from rust and excess oil or grease. (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. (5) Excluded machinery. Side grinding wheel having a diameter, thickness and wall - wheel is mounted on the diameter. (iv) Cylinders, cups, or segmental wheels that are mounted in chucks. (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. Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. (2) Push stick means a narrow strip of wood or other soft material with a notch cut into one end and which is used to push short pieces of material through saws. (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. 1910.424 SCUBA diving. The spreader shall be slightly thinner than the saw kerf and slightly thicker than the saw disk. (i) Prior to the initial use of any mechanical press in the PSDI mode, two sets of certification and validation are required: (A) The design of the safety system required for the use of a press in the PSDI mode shall be certified and validated prior to installation. Each continuous line of shafting shall be secured in position against excessive endwise movement. No changes found for this content after 1/03/2017. (1) Mechanical forging presses. (24) Ejector means a mechanism for removing work or material from between the dies. 1910.401 Scope and application. 1910.35 Compliance with alternate exit-route codes. 1910.1048 Formaldehyde. (a) Attachments shall be connected to and operated only by the press slide or upper die. The upper hood shall be constructed in such a manner and of such material that it will protect the operator from flying splinters, broken saw teeth, etc., and will deflect sawdust away from the operator. Sections 1910.217 and 1910.219 also issued under 5 U.S.C. If you need more than just a PowerPoint, be sure to hop over to . With an enclosure of sheet, perforated, or expanded metal, or woven wire; With guard rails placed not less than fifteen (15) inches nor more than twenty (20) inches from rim. (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. (iii) Full revolution mechanical power presses shall not be used in the PSDI mode of operation. (3) Surface condition. (c) The safety distance (Ds) between each two hand control device and the point of operation shall be greater than the distance determined by the following formula: (d) Two hand controls shall be fixed in position so that only a supervisor or safety engineer is capable of relocating the controls. (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. Mandatory requirements for certification/validation of the PSDI safety system are provided in appendix A and appendix C to this standard. Where loose pulleys or idlers are not practicable, belt perches in form of brackets, rollers, etc., shall be used to keep idle belts away from the shafts. The decision shall be made pursuant to the procedures specified in paragraphs I.B.8.b. 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. In all other industries, wood guards shall not be used. (2) Each bandsaw machine shall be provided with a tension control device to indicate a proper tension for the standard saws used on the machine, in order to assist in the elimination of saw breakage due to improper tension. 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. (i) 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. (11) Band type guards - general specifications. 1910.12 Construction work. Abrasive wheel machinery guards shall meet the design specifications of the American National Standard Safety Code for the Use, Care, and Protection of Abrasive Wheels, ANSI B7.1-1970, which is incorporated by reference as specified in 1910.6. (4) If there is a counterweight, one of the following or equivalent means shall be used to prevent its dropping: (i) It shall be bolted to the bar by means of a bolt passing through both bar and counterweight; (ii) A bolt shall be put through the extreme end of the bar; (iii) Where the counterweight does not encircle the bar, a safety chain shall be attached to it; (iv) Other types of counterweights shall be suspended by chain or wire rope and shall travel in a pipe or other suitable enclosure wherever they might fall and cause injury. 4. (iv) single strand V-belts, the width of which is thirteen thirty-seconds (1332) inch or less. (B) The length of the hand tool shall be such as to ensure that the operator's hand will be detected for any safety distance required by the press set-ups. 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. Analysis: We suggest conveyor safety nets and other safe guards for overhead conveyors, even those with relatively light loads, unless the conveyor is guarded by location. (ii) If the single-stroke mechanism is dependent upon spring action, the spring(s) shall be of the compression type, operating on a rod or guided within a hole or tube, and designed to prevent interleaving of the spring coils in event of breakage. 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. It would not be necessary to repeat the tests on individual safety systems of the same manufacture or design. Higher pressures may be permitted, however, to increase clutch torque to free jammed dies, provided positive measures are provided to prevent the higher pressure at other times. Requirements for recognition. (3) Steam hammers mean a type of drop hammer where the ram is raised for each stroke by a double-action steam cylinder and the energy delivered to the workpiece is supplied by the velocity and weight of the ram and attached upper die driven downward by steam pressure. 1910.261 Pulp, paper, and paperboard mills. This exposure shall begin at a point not more than 65 above the horizontal plane of the wheel spindle. This contact form is only for website help or website suggestions. A hearing will be granted to an objecting member of the public only if evidence of failure to meet the requirements of this appendix is supplied to OSHA. This does not apply to constant pressure controls used only for setup purposes. (c) Presses. It is necessary to maintain clearance between the wheel side and the guard. of this appendix, subject to the possible reinspection exception. Pulleys serving as balance wheels (e.g., punch presses) on which the point of contact between belt and pulley is more than six feet six inches (6 ft. 6 in.) Shall be free of operational control and influence of manufacturers, suppliers, vendors, employers, or employee representatives that would impair its integrity of performance; and. All mechanical power transmission apparatus located in basements, towers, and rooms used exclusively for power transmission equipment shall be guarded in accordance with this section, except that the requirements for safeguarding belts, pulleys, and shafting need not be complied with when the following requirements are met: The intensity of illumination conforms to the requirements of ANSI A11.1-1965 (R-1970), which is incorporated by reference as specified in 1910.6. (i) Machines using full revolution clutches shall incorporate a single-stroke mechanism. If it so determines, it shall validate the employer's certification that the PSDI safety system is in full conformance with all requirements of 29 CFR 1910.217(a) through (h) and this appendix A. 3. 1910.241 Definitions. 7, 1996; 69 FR 31882, June 8, 2004; 76 FR 80739, Dec. 27, 2011; 77 FR 46949, Aug. 7, 2012; 78 FR 69550, Nov. 20, 2013]. (ii) Fixed or permanent lead pot installations shall be exhausted. OSHA may inspect the facilities of the third-party validation organization and any validating laboratory, and while there shall review any additional documentation underlying the application. (4) Openings for oiling. This requirement pertains only to those single-stroke, two-hand controls manufactured and installed on or after August 31, 1971. Each manufacturer supplying parts, components, subsystems, and assemblies needs to maintain the quality of the product, and each employer needs to maintain the system in a non-degraded condition. (7) Type 27A depressed center, cutting-off wheels mean wheels having diameter, thickness, and hole size dimensions. 2. 1910.160 Fixed extinguishing systems, general. (g) Guarding friction drives. 2. All contact surfaces of wheels, blotters and flanges shall be flat and free of foreign matter. 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. (iii) Suitable reinforcement shall be provided for the ceiling rafters or overhead floor beams, where such is necessary, to sustain safely the weight and stress likely to be imposed by the guard. [39 FR 23502, June 27, 1974, as amended at 43 FR 49750, Oct. 24, 1978; 43 FR 51760; Nov. 7, 1978; 49 FR 5323, Feb. 10, 1984; 61 FR 9240, Mar. 1910.4 Amendments to this part. will also bring you to search results. tensile strength 50,000 p.s.i.) It is not an official legal edition of the CFR. A U type guard is permissible. Revision of application. 1910.336-1910.360 [Reserved], Safety Requirements for Special Equipment, 1910.399 Definitions applicable to this subpart. Energy delivered during each stroke may be varied. Appendix B to Subpart I of Part 1910Nonmandatory Compliance Guidelines for Hazard Assessment and Personal Protective Equipment Selection (iv) The pull-out device shall protect the operator as specified in paragraph (c)(3)(i)(b) of this section, and shall include attachments for each of the operator's hands. All drip cups and pans shall be securely fastened. To accomplish this, the machine spindle shall be made to nominal (standard) size plus zero minus .002 inch, and the wheel hole shall be made suitably oversize to assure safety clearance under the conditions of operating heat and pressure. 1910.1451-1910.1499 [Reserved]. The diameter of circular shaper guards shall be not less than the greatest diameter of the cutter. The validation organization and validating laboratory shall have adequate administrative and technical staffs to conduct the validation of the certification of PSDI safety systems. (3) Bench and floor stands. (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. Any person or organization considering itself capable of conducting a PSDI-related third-party validation function may apply for OSHA recognition. (iv) Periodic inspections of clutch and brake mechanisms shall be performed to assure they are in proper operating condition.
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