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1910.125 Additional requirements for dipping and coating operations that use flammable liquids or liquids with flashpoints greater than 199.4 F (93 C). (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. (iv) Cylinders, cups, or segmental wheels that are mounted in chucks. (4) Type 11 flaring cup wheels mean wheels having double diameter dimensions D and J, and in addition have thickness, hole size, rim and back thickness dimensions. (iv) For cutting-off wheels 16 inches diameter and smaller and where speed does not exceed 16,000 surface feet per minute, cast iron or malleable iron safety guards as specified in Figures O-36 and O-37, and in Table O-9 shall be used. (24) Ejector means a mechanism for removing work or material from between the dies. Tail rods or extension piston rods shall be guarded in accordance with paragraphs (m) and (o) of this section, or by a guardrail on sides and end, with a clearance of not less than fifteen (15) nor more than twenty (20) inches when rod is fully extended. For installation certification/validation and annual recertification/revalidation, in the first stage the employer certifies or recertifies that the employer is installing or utilizing a PSDI safety system validated as meeting the design requirements of 29 CFR 1910.217 (a) through (h) and this appendix A by an OSHA-recognized third-party validation organization and that the installation, operation and maintenance meet the requirements of 29 CFR 1910.217 (a) through (h) and this appendix A. (ii) Once the PSDI safety system has been certified/validated, adjustment of the brake monitor shall not be done without prior approval of the validation organization for both the brake monitor adjustment and the corresponding adjustment of the safety distance. 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 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. (5) Excluded machines. 1910.1018 Inorganic arsenic. 1910.121 [Reserved]. Sections 1910.217 and 1910.219 also issued under 5 U.S.C. 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. . When a recognized validation organization has filed such a renewal request, its current recognition will not expire until a final decision has been made on the request. These guards shall effectively prevent the hands or fingers of the operator from coming in contact with the nip points. Grade 32510. The objective of the certification/validation program is to demonstrate and document that the system satisfies specification and operational requirements for safe operations. This requirement shall not apply to natural sandstone wheels or metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface. The application need not be submitted on a Federal form. The areas covered by this set of standards include: Demonstrations that such adjustments as may be needed (such as to the brake monitor setting) have been accomplished with proper changes made in the records and on such notices as are located on the press and safety system. Mechanical and electrical equipment and auxiliaries shall be installed in accordance with this section and subpart S of this part. b. (25) Face of slide means the bottom surface of the slide to which the punch or upper die is generally attached. (59) Control system means sensors, manual input and mode selection elements, interlocking and decision-making circuitry, and output elements to the press operating mechanism. Appendix B to Subpart L of Part 1910National Consensus Standards The explanation and use of the scale shall be documented. 1. (i) Both flanges, of any type, between which a wheel is mounted, shall be of the same diameter and have equal bearing surface. See paragraph (b) of 1910.215. 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. Guarding Floor and Wall Openings and Holes OSHA Standard 1910.23 2 Overview This is a condensation of Standard 1910.23 of the Occupational Safety and Health Act. 4. (1) Each swing cutoff saw shall be provided with a hood that will completely enclose the upper half of the saw, the arbor end, and the point of operation at all positions of the saw. 2. Test results obtained from development testing may be used to certify/validate the design. - Occupational Safety and Health Administration, Department of Labor, - Occupational Safety and Health Standards, 1910.214 Cooperage machinery. (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. 1910.426 Mixed-gas diving. It shall include instruction relative to the following items for presses used in the PSDI mode. 1910.111 Storage and handling of anhydrous ammonia. The various openings are such that for average size hands an operator's fingers won't reach the point of operation. The upper rail shall be two by four (2 4) inches, or two one by four (1 4) strips, one at the top and one at the side of posts. The mounting features shall conform with all requirements of this section. 1910.22 General requirements. (iii) Where brake engagement and clutch release is effected by spring action, such spring(s) shall operate in compression on a rod or within a hole or tube, and shall be of non-interleaving design. A. Certification/validation of hardware design below the system level should be accomplished by test and/or analysis. The provision of a spreader in connection with grooving, dadoing, or rabbeting is not required. 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. (i) Wood guards may be used in the woodworking and chemical industries, in industries where the presence of fumes or where manufacturing conditions would cause the rapid deterioration of metal guards; also in construction work and in locations outdoors where extreme cold or extreme heat make metal guards and railings undesirable. When removing material off conveyors, workers should remain alert and safeguard their hands; the moving material can create pinch points. Each recognized third-party validation organization and its validating laboratories shall: 1. (ii) All guards for inclined belts shall be arranged in such a manner that a minimum clearance of seven (7) feet is maintained between belt and floor at any point outside of guard. This prohibition is needed to increase the reliability of the presence sensing device in initiating a stroke only when the desired work motion has been completed. (63) Authorized person means one to whom the authority and responsibility to perform a specific assignment has been given by the employer. 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. Such flanges shall be at least one-fourth the wheel diameter. (viii) Supplemental safeguarding shall be used to protect all areas of access to the point of operation which are unprotected by the PSDI presence sensing device. (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) Tight and loose pulleys on all new installations made on or after August 31, 1971, shall be equipped with a permanent belt shifter provided with mechanical means to prevent belt from creeping from loose to tight pulley. (37) Guide post means the pin attached to the upper or lower die shoe operating within the bushing on the opposing die shoe, to maintain the alignment of the upper and lower dies. 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]. The renewal request will be processed in accordance with subsection I.B. Records of inspections and maintenance shall be kept in accordance with paragraph (e) of this section. (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. (The operational and installation requirements of the PSDI safety system may vary for different applications.). 1910.27 Scaffolds and rope descent systems. (iii) Following a die change, the safety distance, the proper application of supplemental safeguarding, and the slide counterbalance adjustment (if the press is equipped with a counterbalance) shall be checked and maintained by authorized persons whose qualifications include knowledge of the safety distance, supplemental safeguarding requirements, and the manufacturer's specifications for counterbalance adjustment. 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. 3. The outside periphery of the enclosure shall be solid. Sprockets and chains. 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. Employees are required to cover and protect long hair to prevent it from getting caught in machine parts such as belts, chain and rotating parts. 2. Machine components shall be designed, secured, or covered to minimize hazards caused by breakage, or loosening and falling or release of mechanical energy (i.e. Vertical belts. (14) Operators shall not ride the carriage of a veneer slicer. 6. 1910.269 Electric power generation, transmission, and distribution. 1910.1052 Methylene chloride. (4) Exposed to contact means that the location of an object is such that a person is likely to come into contact with it and be injured. (iii) Full revolution mechanical power presses shall not be used in the PSDI mode of operation. (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. The certification record shall be prepared at the completion of training and shall be maintained on file for the duration of the employee's employment. (1) The employer shall report, within 30 days of the occurrence, all point-of-operation injuries to operators or other employees to either the Director of the Directorate of Standards and Guidance at OSHA, U.S. Department of Labor, Washington, DC 20210 or electronically at http://www.osha.gov/pls/oshaweb/mechanical.html; or to the State Agency administering a plan approved by the Assistant Secretary of Labor for Occupational Safety and Health. See paragraph (c)(3)(ii) of this section regarding manual feeding through interlocked press barrier devices. When dies are being changed, maintenance performed, or any work done on the machine, the power to the upsetter shall be locked out, and the flywheel shall be at rest. (5) Exposure of blades. Table O-1 - Minimum Basic Thickness for Peripheral and Side Members for Safety Guards Used With Cutting-Off Wheels, Table O-3 - Guide for Construction of Band Type Guards, Table O-5 - Minimum Dimensions for Straight Adaptor Flange - for Organic Bonded Wheels Over 114 Inches Thick1. Acceptable design features shall demonstrate, in the following order or precedence, that: (1) No single failure points may cause injury; or. (4) Inverted swing cutoff saws shall be provided with a hood that will cover the part of the saw that protrudes above the top of the table or above the material being cut. In powerplants only the lower run of the belt need be guarded. 1 Flanges shall be of steel, quality SAE 1040 or equivalent, annealed plate, heat treated to R. 25-30. Reactivation of the clutch shall require restoration of normal supply and the use of the tripping mechanism(s). 1910.332 Training. (1) The upper hood shall completely enclose the upper portion of the blade down to a point that will include the end of the saw arbor. The official, published CFR, is updated annually and available below under Copyright OSHA Safety Manuals | All Rights Reserved, Care For Your Half-Mask Air-Purifying Respirator, Cold Weather Hazards Of Propane Fueled Vehicles, Machine Safety- Requirements For Safeguards, IIPP Injury and Illness Prevention Program. Mounts which are affixed to the wheel by the manufacturer shall not be reused. 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. If a stairway accesses the catwalk, the width requirements depend on the width of the stairway that serves it. The safety trip control shall be one of the following types or a combination thereof: (i) Pressure-sensitive body bars. The regular oilers shall wear tight-fitting clothing. The dates of the period of recognition will be stated in the recognition letter. This diagram shows the accepted safe openings between the bottom edge of a guard and feed table at various distances from the danger line (point of operation). (ii) Maximum hole size for cutting-off wheels should not be larger than 14-wheel diameter. Tr = Longest response time, in seconds, of all interposing control elements between the presence sensing device and the clutch/brake operating mechanism(s). If cracked, there will be a dead sound and not a clear ring.. (4) Openings for oiling. (ii) Two-hand trip systems on full revolution clutch machines shall incorporate an antirepeat feature. (iv) single strand V-belts, the width of which is thirteen thirty-seconds (1332) inch or less. 1910.1025 Lead. a. 1910.38 Emergency action plans. OSHA Conveyor Standards 1926.555 (a) General requirements. Wheels bonded with clay, glass, porcelain or related ceramic materials are characterized as vitrified bonded wheels. A hearing will be granted to an objecting member of the public if evidence of failure to meet the requirements of this appendix is supplied to OSHA. All sprocket wheels and chains shall be enclosed unless they are more than seven (7) feet above the floor or platform. and 2. for the combined position. (v) All clutch/brake control electrical circuits shall be protected against the possibility of an accidental ground in the control circuit causing false operation of the press. Following a deactivation of PSDI by the timer, the system shall make it necessary to reset the set-up/reset means in order to reactivate the PSDI mode. (1) Boltheading. Wall thickness at the back is normally greater than at the grinding face (W). 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. They shall be located in front of the saw and so arranged as to be in continual contact with the wood being fed. Therefore, the wall dimension W takes precedence over the diameter of the recess as an essential intermediate dimension to describe this shape type. 3. One or more methods of machine guarding shall be provided to protect the operator and other employees in the machine area from hazards such as those created by point of operation, ingoing nip points, rotating parts, flying chips and sparks. A copy of the certification/validation report shall be submitted to OSHA within 30 days of its completion. Dimensions of such flanges shall never be less than indicated.