(i) Machines using full revolution clutches shall incorporate a single-stroke mechanism. When flywheel extends into pit or is within 12 inches of floor, a standard toeboard shall also be provided; When the upper rim of flywheel protrudes through a working floor, it shall be entirely enclosed or surrounded by a guardrail and toeboard. Collars. If cracked, there will be a dead sound and not a clear ring.. - Occupational Safety and Health Administration, Department of Labor, - Occupational Safety and Health Standards, 1910.214 Cooperage machinery. It should be noted that this does not require redundancy for press components such as structural elements, clutch/brake mechanisms, plates, etc., for which adequate reliability may be achieved by proper design, maintenance, and inspection. 1/1.1 Workers who operate and maintain machinery suffer approximately 18,000 amputations, lacerations, crushing injuries, abrasions, and over 800 deaths per year. 1 Flanges shall be of steel, quality SAE 1040 or equivalent, annealed plate, heat treated to R. 25-30. Appendix to Subpart E of Part 1910Exit Routes, Emergency Action Plans, and Fire Prevention Plans, Subpart FPowered Platforms, Manlifts, and Vehicle-Mounted Work Platforms. (b) Mechanical power press guarding and construction, general -. 1910.252 General requirements. Class 20. 1910.1017 Vinyl chloride. 1910.1028 Benzene. (5) Universal joints on spindles of boring machines shall be completely enclosed in such a way as to prevent accidental contact by the operator. 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. Showing movable guard with size of opening correct for full size wheel but too large for smaller wheels. (i) Shafting shall be kept in alignment, free from rust and excess oil or grease. Where guard is exposed to contact with moving equipment, additional strength may be necessary. c. Function completion means for, electrical, electromechanical and electronic devices, when the circuit produces a change of state in the output element of the device. Suspended counterbalanced tighteners and all parts thereof shall be of substantial construction and securely fastened; the bearings shall be securely capped. Pulley speeds. 1910.112-1910.113 [Reserved] 1910.119 Process safety management of highly hazardous chemicals. 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. 7, 1996]. Vertical and inclined shafting seven (7) feet or less from floor or working platform, excepting maintenance runways, shall be enclosed with a stationary casing in accordance with requirements of paragraphs (m) and (o) of this section. Dp = Penetration depth factor, required to provide for possible penetration through the presence sensing field by fingers or hand before detection occurs. The application, supporting documents, staff recommendation, statement of applicant's reasons, and any comments received, will be available for public inspection in the OSHA Docket Office. The mounting features shall conform with all requirements of this section. (vi) Equipment shall be kept clean, particularly from accumulations of yellow lead oxide. Production shall not be done in the inch mode. 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. The visual check shall include a determination that the spring housing or rod does not show damage sufficient to degrade the structural integrity of the unit, and the spring does not show any tendency to interleave. (vi) Electrical clutch/brake control circuits shall incorporate features to minimize the possibility of an unintended stroke in the event of the failure of a control component to function properly, including relays, limit switches, and static output circuits. (See paragraph (d)(6) of this section.). It is necessary to maintain clearance between the wheel side and the guard. The employer shall provide clearance between machines so that movement of one operator will not interfere with the work of another. (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. The upper run shall be so guarded as to prevent contact therewith either by the worker or by objects carried by him. This appendix prescribes mandatory requirements and procedures for OSHA recognition of third-party validation organizations to validate employer and manufacturer certifications that their equipment and practices meet the requirements of the PSDI standard. The scale shall be marked to indicate that brake adjustment and/or replacement is required. 1910.9 Compliance duties owed to each employee. (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. (4) Flywheels and bearings. Steel castings (min. Natural sandstone wheels and metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface are not covered by this section. Dimensions of such flanges shall never be less than indicated. (c) Abrasive discs (inserted nut, inserted washer and projecting stud type). d. When the change of state is motion, the measurement shall be made at the completion of the motion. Minimum requirements for this position are a Bachelor's degree in a technical field and five years of professional experience, at least one of which shall have been in responsible charge of a function in the area of testing, quality control or certification/validation of equipment comparable to power presses or their associated control systems. The validation organization shall assign overall responsibility for the validation of PSDI certification to an Administrative Director. 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. (iii) Type 27A cutting-off wheels are designed to be mounted by means of flat, not relieved, flanges having matching bearing surfaces and which may be less than one-third but shall not be less than one-fourth the wheel diameter. tensile strength 60,000 p.s.i.). The manufacturer shall design, evaluate, test and certify, and the third-party validation organization shall evaluate and validate, that the PSDI safety system meets appropriate requirements in the following areas. Certain exceptions are forging hammers made with frame mounted on the anvil; e.g., the smaller, single-frame hammers are usually made with the anvil and frame in one piece. switch to drafting.ecfr.gov. When mounting wheels which have not been cemented together, or ones which do not utilize separating spacers, care must be exercised to use wheels specially manufactured for that purpose. 2. The failure shall be indicated by the system. (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. (iv) Mechanical power presses with a configuration which would allow a person to enter, pass through, and become clear of the sensing field into the hazardous portion of the press shall not be used in the PSDI mode of operation. (See Figures O-16 and O-17. a. 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. They shall be designed to provide adequate holding power for all the thicknesses of materials being cut. (vi) The control system shall incorporate a timer to deactivate PSDI when the press does not stroke within the period of time set by the timer. There are other general safety precautions which should be followed by everyone even if they dont work directly with conveyors. Bolts, nuts, and setscrews will, however, be permitted where they are covered with safety sleeves or where they are used parallel with the shafting and are countersunk or else do not extend beyond the flange of the coupling. Appendix B to Subpart L of Part 1910National Consensus Standards 6.a. It is recommended that old installations be changed to conform to this rule. Click on the image to download the training you need, and they will be automatically downloaded. (iv) The employer shall provide and enforce the use of safety blocks for use whenever dies are being adjusted or repaired in the press. 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. (51) Slide means the main reciprocating press member. The OSHA standards on general guarding of machinery and mechanical power transmission apparatus (29 CFR 1910.212 and 1910.219) are very broad and general minimum guarding standards, one of which was predicated on the 1970's version of the ANSI/ASME B15.1 standard, which itself had undergone several . (b) 12-inch diameter wheel, 1,000 revolutions per minute. (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. For any timer setting greater than 15 seconds, the adjustment shall be made by the use of a special tool available only to authorized persons. They shall operate readily when pushed or pulled. 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. (See Figures O-10 and O-11 and subparagraph (9) of this paragraph. (29) Manual feeding means feeding wherein the material or part being processed is handled by the operator on each stroke of the press. This contact form is only for website help or website suggestions. (1) Veneer slicer knives shall be guarded to prevent accidental contact with knife edge, at both front and rear. 1 For wheels under 114 inches thick F dimension shall not exceed 40 percent of wheel thickness. (3) Manually operated controls. (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.). The official, published CFR, is updated annually and available below under (iv) Light curtains used for PSDI operation shall have minimum object sensitivity not to exceed one and one-fourth inches (31.75 mm). This subdivision does not apply to flywheels with solid web centers. Both types are reinforced, organic bonded wheels having offset hubs which permit side and peripheral grinding operations without interference with the mounting. Such cross-referencing of specific requirements from paragraphs (a) through (g) of this section is intended only to enhance convenience and understanding in relating to the new provisions to the existing standard, and is not to be construed as limiting the applicability of other provisions in paragraphs (a) through (g) of this section. This content is from the eCFR and may include recent changes applied to the CFR. When blotters or flange facings of compressible material are required, they shall cover entire contact area of wheel flanges. 1910.111 Storage and handling of anhydrous ammonia. citations and headings (B) The safety distance shall be checked for compliance with (h)(9)(v) of this section. (ii) The spindle end, nut, and outer flange may be exposed on machines designed as portable saws. (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. 1910.112-1910.113 [Reserved] (20) Die set means a tool holder held in alignment by guide posts and bushings and consisting of a lower shoe, an upper shoe or punch holder, and guide posts and bushings. Certification/Validation Program Requirements. Ample room for cleaning machines, handling material, work pieces, and scrap shall also be provided. Appendix D to Subpart I of Part 1910Test Methods and Procedures for Personal Fall Protection Systems Non-Mandatory Guidelines. (See Figures O-12 and O-13), (6) Swing frame grinders. This should enhance the reliability of the device and ensure that it remains operable. Minor modifications not affecting the safety of the system may be made by the manufacturer without revalidation. Energy delivered during each stroke may be varied. 3. (vii) Where presence sensing device location is adjustable, adjustment shall require the use of a special tool available only to authorized persons. They shall be made of steel or other material with adequate strength and shall enclose the wheel sides upward from the back for one-third of the wheel thickness. The safety attributes of a certified/validated PSDI safety system are more likely to be maintained if the quality of the system and its parts, components and subsystem is consistently controlled. The guarding device shall be in conformity with any appropriate standards therefor, or, in the absence of applicable specific standards, shall be so designed and constructed as to prevent the operator from having any part of his body in the danger zone during the operating cycle. Each continuous line of shafting shall be secured in position against excessive endwise movement. (vii) Controls for more than one operating station shall be designed to be activated and deactivated in complete sets of two operator's hand controls per operating station by means capable of being supervised by the employer. The validation organization or the validating laboratory shall own a registered certification/validation mark or logo. (2) Arbor size. A minimum object sensitivity of one and one-fourth inches (31.75 mm) means that a one and one-fourth inch (31.75 mm) diameter object will be continuously detected at all locations in the sensing field. (44) Pinch point means any point other than the point of operation at which it is possible for a part of the body to be caught between the moving parts of a press or auxiliary equipment, or between moving and stationary parts of a press or auxiliary equipment or between the material and moving part or parts of the press or auxiliary equipment. General. In 2015 it again made list, coming in at number ten. Gears shall be guarded in accordance with one of the following methods: (ii) By a standard guard as described in paragraph (o) of this section, at least seven (7) feet high extending six (6) inches above the mesh point of the gears; or. Some metals can be forged at room temperature, but the majority of metals are made more plastic for forging by heating. Cast iron (min. 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. (iii) The employer shall provide die stops or other means to prevent losing control of the die while setting or removing dies in presses which are inclined. (3) Work area. It shall be ascertained that the springs have not been broken and that they are functioning properly. Programmable controllers which meet the requirements for controls with internally stored programs stated above shall be permitted only if all logic elements affecting the safety system and point of operation safety are internally stored and protected in such a manner that they cannot be altered or manipulated by the user to an unsafe condition. (2) On machines driven by belts and shafting, a locking-type belt shifter or an equivalent positive device shall be used. 11. (2) Each hand-fed circular ripsaw shall be furnished with a spreader to prevent material from squeezing the saw or being thrown back on the operator.
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