See paragraph (c) of 1910.215 for full description. If the frame of the belt shifter does not adequately guard the nip point of the belt and pulley, the nip point shall be further protected by means of a vertical guard placed in front of the pulley and extending at least to the top of the largest step of the cone. Equip.) 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. Overhead rope drive and block and roller-chain-drive guards shall be not less than six (6) inches wider than the drive on each side. (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. is available with paragraph structure matching the official CFR The purpose of the certification/validation of safety systems for presence sensing device initiation (PSDI) of mechanical power presses is to ensure that the safety systems are designed, installed, and maintained in accordance with all applicable requirements of 29 CFR 1910.217 (a) through (h) and this appendix A. (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. A sound and undamaged wheel will give a clear metallic tone. Cold trimming presses shall be safeguarded in accordance with 1910.217(c). (h) Presence sensing device initiation (PSDI) -. When frequent oiling must be done, openings with hinged or sliding self-closing covers shall be provided. (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. 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. (2) through (4) of this appendix except that the burden of proof shall be on OSHA to demonstrate by a preponderance of the evidence that the recognition should be revoked because the validation organization either is not meeting the requirements for recognition, has not been performing the validation functions required by the PSDI standard and appendix A, or has misrepresented itself in its applications. Class 20. 2. 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. If the conveyor runs overhead, precautions must be taken to prevent injuries from materials that may fall from above. This content is from the eCFR and is authoritative but unofficial. (5) Forging presses mean a class of forging equipment wherein the shaping of metal between dies is performed by mechanical or hydraulic pressure, and usually is accomplished with a single workstroke of the press for each die station. (i) Air-lift hammers shall have a safety cylinder head as required in paragraph (d)(1) of this section. 2. (xiii) The Control system shall incorporate interlocks for supplemental guards, if used, which will prevent stroke initiation or will stop a stroke in progress if any supplemental guard fails or is deactivated. (b) Each two hand trip shall meet the construction requirements of paragraph (b)(6) of this section. 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. (iii) The band shall be of sufficient width and its position kept so adjusted that at no time will the wheel protrude beyond the edge of the band a distance greater than that indicated in Figure O-29 and in Table O-2 or the wall thickness (W), whichever is smaller. The safety system shall have the ability to sustain a single failure or a single operating error and not cause injury to personnel from point of operation hazards. 1910.218 Forging machines. (ii) For installation certification/validation and annual recertification/revalidation has reviewed the employer's certification that the PSDI safety system meets the requirements of 1910.217 (a) through (h) and appendix A and the underlying tests performed by the employer, 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. The following terms and conditions shall be part of every recognition: a. learn more about the process here. If made of pipe, the post shall be one and one-fourth (114) inches inside diameter, or larger. and 2. for the combined position. (28) Semiautomatic feeding means feeding wherein the material or part being processed is placed within or removed from the point of operation by an auxiliary means controlled by operator on each stroke of the press. (n) Planing, molding, sticking, and matching machines. Sec. See paragraph (c)(3)(ii) of this section regarding manual feeding through interlocked press barrier devices. (3) Training of maintenance personnel. 1910.177 Servicing multi-piece and single piece rim wheels. Where explosives, explosive dusts, flammable vapors or flammable liquids exist, the hazard of static sparks from shafting shall be carefully considered. (1) General requirements. 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. 1910.219 - Mechanical power-transmission apparatus. They are reinforced, organic bonded, offset hub type wheels, usually 16 inches diameter and larger, specially designed for use on cutting-off machines where mounting nut or outer flange interference cannot be tolerated. (1) Safety cylinder head. 3. 29 CFR 1910 Subpart O - Machinery and Machine Guarding - 1910.212 General Requirements for All Machines 29 CFR 1926 Subpart N - Helicopters, Hoists, Elevators, and Conveyors - 1926.555 Conveyors U.S. Occupational Safety and Health Administration Publication, "Safeguarding Equipment and Protecting Employees from Amputations", OSHA 3170-02R, 2007 Conveyor Safety When used incorrectly, they can be dangerous. This section covers all types and shapes of power-transmission belts, except the following when operating at two hundred and fifty (250) feet per minute or less: Flat belts one (1) inch or less in width. (11) Rivet making machines mean the same as upsetters and boltheaders when producing rivets with stock diameter of 1-inch or more. 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. A copy of the certification/validation report shall be submitted to OSHA within 30 days of its completion. No extra microswitches or interlocking sensors would be required. (13) Gate or movable barrier device means a movable barrier arranged to enclose the point of operation before the press stroke can be started. Compliance with 1910.217(h)(5)(iii) and (h)(9)(v). from the floor or platform may be guarded with a disk covering the spokes. 20), and the openings shall be not greater than three-eighths inch. Engine rooms. information or personal data. 1926.555 (a) (5) Where a conveyor passes over work areas, aisles, or thoroughfares, suitable guards shall be provided to protect employees required to work below the conveyors. In addition, General Industry applications must adhere to OSHA regulations for Ladder Safety 1910.23 (if applicable) and Walking-Working Surfaces 1910.28. (2) Calender means a machine equipped with two or more metal rolls revolving in opposite directions and used for continuously sheeting or plying up rubber and plastics compounds and for frictioning or coating materials with rubber and plastics compounds. The failure of a critical component shall necessitate the removal of the safety system from service until it is recertified and revalidated, except recertification by the employer without revalidation is permitted when a non-critical component or subsystem is replaced by one of the same manufacture and design as the original, or determined by the third-party validation organization to be equivalent by similarity analysis, as set forth in appendix A. Conveyors are safe when used correctly, but they can be dangerous, and even deadly, if workers fail to follow safety procedures when working on or around them. The term manufacturers refers to the manufacturer of any of the components of the safety system. (b) As used in 1910.215 unless the context clearly requires otherwise, the following abrasive wheel machinery terms shall have the meanings prescribed in this paragraph. The work rest shall be securely clamped after each adjustment. 1910.27 Scaffolds and rope descent systems. 8. (4) Belt sanding machines shall be provided with guards at each nip point where the sanding belt runs on to a pulley. 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. Belt fasteners. The diameter of circular shaper guards shall be not less than the greatest diameter of the cutter. 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. (1) Boltheading. (4) Surfacers or planers used in thicknessing multiple pieces of material simultaneously shall be provided with sectional infeed rolls having sufficient yield in the construction of the sections to provide feeding contact pressure on the stock, over the permissible range of variation in stock thickness specified or for which the machine is designed. (2) Each circular resaw (other than self-feed saws with a roller or wheel at back of the saw) shall be provided with a spreader fastened securely behind the saw. The recognition of any validation organization will be evidenced by a letter of recognition from OSHA. (xv) The control system shall have provisions for an inch operating means meeting the requirements of paragraph (b)(7)(iv) of this section. (iv) For flywheels with smooth rims five (5) feet or less in diameter, where the preceding methods cannot be applied, the following may be used: A disk attached to the flywheel in such manner as to cover the spokes of the wheel on the exposed side and present a smooth surface and edge, at the same time providing means for periodic inspection. 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. The route followed by the oiler is protected in such manner as to prevent accident. Showing movable guard with size of opening correct for full size wheel but too large for smaller wheels. Eligibility. (5) Power-driven guillotine veneer cutters, except continuous feed trimmers, shall be equipped with: (i) Starting devices which require the simultaneous action of both hands to start the cutting motion and of at least one hand on a control during the complete stroke of the knife; or. 1910.253 Oxygen-fuel gas welding and cutting. (6) Each operating treadle shall be covered by an inverted U-shaped metal guard, fastened to the floor, and of adequate size to prevent accidental tripping. The stopping time measurements should be made with the heaviest upper die that is planned for use in the press. 1910.123 Dipping and coating operations: Coverage and definitions. ), (9) Exposure adjustment. (7) Lubrication. (6) Part revolution clutch means a type of clutch that can be disengaged at any point before the crankshaft has completed a full revolution and the press slide a full stroke. (e) Inspection, maintenance, and modification of presses -. (g) Guarding friction drives. Brakes which are the adjustable type shall be adjusted properly before the test. (1) Each circular crosscut table saw shall be guarded by a hood which shall meet all the requirements of paragraph (c)(1) of this section for hoods for circular ripsaws. If the safeguard is not described in this section, give a complete description. 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. If the press has a slide counterbalance system, it is important that the counterbalance be adjusted correctly for upper die weight according to the manufacturer's instructions. 1910.11 Scope and purpose. a. 49 CFR 172.101 1910.422 Procedures during dive. (2) On machines driven by belts and shafting, a locking-type belt shifter or an equivalent positive device shall be used. Where panels are fitted with expanded metal or wire mesh the middle rails may be omitted. 1910.158 Standpipe and hose systems. (ii) Employee's name, injury sustained, and the task being performed (operation, set-up, maintenance, or other). 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. Tests which are conducted by the manufacturers of electrical components to establish stress, life, temperature and loading limits must be tests which are in compliance with the provisions of the National Electrical Code. (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. The manufacturer shall design a test(s) to establish the hand tool extension diameters allowed for variations in minimum object sensitivity response. (g) Swing cutoff saws. Prior to conducting the brake system test required by paragraph (h)(2)(ii), a visual check shall be made of the springs. The brake monitor used with the Type B gate or movable barrier device shall be installed in a manner to detect slide top-stop overrun beyond the normal limit reasonably established by the employer. In the area of Safety Standards for Conveyors, CEMA defers and refers to the American Society of Mechanical Engineers, Association for Manufacturing Technology, and OSHA to develop broad industry safety standards where they can.. Read below for additional safety information: For all Conveyors the ASME B20 Committee for Conveyors and Related Equipment maintains the National Standard ANSI/ASME . 1910.1024 Beryllium. There are other general safety precautions which should be followed by everyone even if they dont work directly with conveyors. A correlation of the brake and/or clutch degradation based on the above tests and/or estimates shall be made and documented. (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. 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. (1) Inspection. (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. Saws to which gum has adhered on the sides shall be immediately cleaned. (11) Device means a press control or attachment that: (i) Restrains the operator from inadvertently reaching into the point of operation, or, (ii) Prevents normal press operation if the operator's hands are inadvertently within the point of operation, or, (iii) Automatically withdraws the operator's hands if the operator's hands are inadvertently within the point of operation as the dies close, or. Belt shippers and shipper poles. 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. (iii) A fixed barrier guard shall be attached securely to the frame of the press or to the bolster plate. 1910.19 Special provisions for air contaminants. b. [39 FR 23502, June 27, 1974, as amended at 49 FR 5323, Feb. 10, 1984; 61 FR 9240, Mar. Before proposing to revoke recognition, the Agency will notify the recognized validation organization of the basis of the proposed revocation and will allow rebuttal or correction of the alleged deficiencies. Note: These flanges may be clamped together by means of a central nut, or by a series of bolts or some other equivalent means of fastening. The test specifications and procedures shall be made available upon request to the validation organization. (12) Pressure vessels. Pulleys with cracks, or pieces broken out of rims, shall not be used. Choosing an item from This requirement shall not apply to natural sandstone wheels or metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface. 2. All Conveyors - Safety Section Refer to OSHA 1910.132 (Personal Prot. 1910.37 Maintenance, safeguards, and operational features for exit routes. Type 27 and Type 28 wheels shall be used only with a safety guard located between wheel and operator during use. (v) Two-hand controls for single stroke shall conform to the following requirements: (a) Each hand control shall be protected against unintended operation and arranged by design, construction, and/or separation so that the concurrent use of both hands is required to trip the press. (21) Die setter means an individual who places or removes dies in or from mechanical power presses, and who, as a part of his duties, makes the necessary adjustments to cause the tooling to function properly and safely. Dp = Penetration depth factor, required to provide for possible penetration through the presence sensing field by fingers or hand before detection occurs. Integrated Tests Certification/Validation. Gears. The safety requirements of this subparagraph apply to lead casts or other use of lead in the forge shop or die shop. fOSHA Conveyor Standards (Ts is defined as the sum of the kinetic energy dissipation time plus the pneumatic/magnetic/hydraulic reaction time of the clutch/brake operating mechanism(s).). 1910.272 Grain handling facilities. (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. Friction brakes provided for stopping or holding a slide movement shall be inherently self-engaging by requiring power or force from an external source to cause disengagement. (3) Belt pole (sometimes called a belt shipper or shipper pole,) means a device used in shifting belts on and off fixed pulleys on line or countershaft where there are no loose pulleys. It is recommended that old installations be changed to conform to this rule. (ii) Be installed on a press such that it indicates when the performance of the braking system has deteriorated to the extent described in paragraph (b)(14)(i) of this section; and. The written notice shall indicate the termination date. b. The clearance between the edge of the rear table and the cutter head shall be not more than one-eighth inch. (i) Overhead horizontal belts, with lower parts seven (7) feet or less from the floor or platform, shall be guarded on sides and bottom in accordance with paragraph (o)(3) of this section. 1910.6 Incorporation by reference. (2) Redundancy, and comparison and/or diagnostic checking, exist for the critical items that may cause injury, and the electrical, electronic, electromechanical and mechanical parts and components are selected so that they can withstand operational and external environments. 1910.137 Electrical protective equipment. Compliance with 1910.217(h)(9)(iv). (iii) When presses used in the PSDI mode have flywheel or bullgear running on crankshaft mounted journals and bearings, or a flywheel mounted on back shaft journals and bearings, periodic inspections following the press manufacturer's recommendations shall be made to ascertain that bearings are in good working order, and that automatic lubrication systems for these bearings (if automatic lubrication is provided) are supplying proper lubrication. The Federal Register notice of preliminary decision will provide a period of not less than 60 calendar days for the written comments on the applicant's fulfillment of the requirements for recognition. (1) General requirements. 7, 1996]. 2. 2 Adapted from U.S. Department of Agriculture Technical Bulletin 479. 1910.252 General requirements. (9) Continuous means uninterrupted multiple strokes of the slide without intervening stops (or other clutch control action) at the end of individual strokes. (iii) The ram shall be blocked with a material the strength of which shall meet or exceed the specifications or dimensions shown in Table O-11. 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. 7, 1996]. The stroking selector generally includes positions for Off (Clutch Control), Inch, Single Stroke, and Continuous (when Continuous is furnished). ), Wherever the nature of the work requires contact with the wheel below the horizontal plane of the spindle, the exposure shall not exceed 125. (46) Press means a mechanically powered machine that shears, punches, forms or assembles metal or other material by means of cutting, shaping, or combination dies attached to slides. 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. (5) Full revolution clutch means a type of clutch that, when tripped, cannot be disengaged until the crankshaft has completed a full revolution and the press slide a full stroke. Where clamp caps or setscrews are used in conjunction with punch stems, additional means of securing the upper shoe to the slide shall be used. The safety guard shall cover the spindle end, nut, and flange projections. This subdivision does not apply to flywheels with solid web centers. (vi) Equipment shall be kept clean, particularly from accumulations of yellow lead oxide.
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