(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. Prior to use, both the employer and manufacturer must certify that these requirements and all the other applicable requirements of this section are met and these certifications must be validated by an OSHA-recognized third-party validation organization to meet these additional requirements and all the other applicable requirements of paragraphs (a) through (h) and appendix A of this section. (2) Calenders. Flexible steel band brakes do not possess a long-term reliability against structural failure as compared to other types of brakes, and therefore are not acceptable on presses used in the PSDI mode of operation. (39) Inch means an intermittent motion imparted to the slide (on machines using part revolution clutches) by momentary operation of the Inch operating means. (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. 1910.123 Dipping and coating operations: Coverage and definitions. 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. (11) Off-hand grinding means the grinding of any material or part which is held in the operator's hand. The employer shall provide means for handling scrap from roll feed or random length stock operations. Table O-6 - Minimum Dimensions for Straight Relieved Flanges1. (ii) The safety system shall be designed, constructed, and arranged as an integral total system, including all elements of the press, the controls, the safeguarding and any required supplemental safeguarding, and their interfaces with the operator and that part of the environment which has effect on the protection against point of operation hazards. The certification record shall be made available upon request to the Assistant Secretary for Occupational Safety and Health. 1910.35 Compliance with alternate exit-route codes. 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. The dates of the period of recognition will be stated in the recognition letter. (1) Hot trimming presses. Showing movable guard with size of opening correct for full size wheel but too large for smaller wheels. (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. of this appendix or may request that the original application be submitted to the Assistant Secretary with a statement of reasons supplied by the applicant as to why the application should be approved. (i) Both flanges, of any type, between which a wheel is mounted, shall be of the same diameter and have equal bearing surface. (3) Bearings. Appendix A to Subpart L of Part 1910Fire Protection Broken pulleys. 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. The clearance line marks the distance required to prevent contact between guard and moving parts. (iii) Table O-8 and Figure O-35 show minimum dimensions for straight flanges that are an integral part of wheel sleeves which are frequently used on precision grinding machines. Pulleys, any parts of which are seven (7) feet or less from the floor or working platform, shall be guarded in accordance with the standards specified in paragraphs (m) and (o) of this section. 2. If used, these devices shall be located so as to detect all operator locations and positions not detected by the PSDI sensing field, and shall prevent stroking or stop a stroke in process when any supplemental sensing field(s) are interrupted. 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. 1910.212 General requirements for all machines. OSHA Basics: OSHA's Parts 1910 and 1926 ; OSHA Basics: How OSHA Standards are Named and Numbered; OSHA Basics: Incorporation by Reference (IBR) OSHA Basics: The OSHA Field Operations Manual; OSHA Basics: OSHA's Small Business Handbook ; OSHA Basics: The General Duty Clause-5. Subpart O - Machinery and Machine Guarding. 1910.15 Shipyard employment. (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. 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. Ample room for cleaning machines, handling material, work pieces, and scrap shall also be provided. A recognized validation organization may voluntarily terminate its recognition, either in its entirety or with respect to any area covered in its recognition, by giving written notice to OSHA at any time. The model is based on medical research into the forces needed to cause damage to . (C) Maintain a certification record of each maintenance task performed under the directed component of the inspection program that includes the date of the maintenance task, the signature of the person who performed the maintenance task, and the serial number, or other identifier, of the power press maintained. (2) Guard exposure angles. OSHA Machine Guarding Standards - Machine Guard & Cover Co. Each recognized third-party validation organization and its validating laboratories shall: 1. (ii) Where explosives, explosive dusts, flammable vapors or flammable liquids exist, the hazard of static sparks from shafting shall be carefully considered. Belt perches. A slot opening for jack bar will be permitted. (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. When required by paragraph (c)(5) of this section, the brake monitor shall meet the following requirements: (i) Be so constructed as to automatically prevent the activation of a successive stroke if the stopping time or braking distance deteriorates to a point where the safety distance being utilized does not meet the requirements set forth in paragraph (c)(3)(iii)(e) or (c)(3)(vii)(c) 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. Background and more details are available in the 7, 1996; 69 FR 31882, June 8, 2004]. The cleaning chamber shall have doors or guards to protect operators. (ii) The PSDI mode shall not be used for die setting or set-up. 1910.9 Compliance duties owed to each employee. (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. (iii) Air-lift hammers shall be provided with two drain cocks: one on main head cylinder, and one on clamp cylinder. 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. (iii) Where the upper and lower runs of horizontal belts are so located that passage of persons between them would be possible, the passage shall be either: (a) Completely barred by a guardrail or other barrier in accordance with paragraphs (m) and (o) of this section; or. Failure to observe these rules might cause excessive flange pressure around the hole of the wheel. (ii) A gate or movable barrier device shall protect the operator as follows: (a) A Type A gate or movable barrier device shall protect the operator in the manner specified in paragraph (c)(3)(i)(f) of this section, and. (ii) Type 1 cutting-off wheels are to be mounted between properly relieved flanges which have matching bearing surfaces. tensile strength 20,000 p.s.i.) Surface Feet Per Minute = 3.1416 diameter in inches r.p.m. b. Steam hammers shall be provided with a quick closing emergency valve in the admission pipeline at a convenient location. (i) Each continuous line of shafting shall be secured in position against excessive endwise movement. 1910.402 Definitions. (ii) Shafting under bench machines shall be enclosed by a stationary casing, or by a trough at sides and top or sides and bottom, as location requires. (8) Forging rolls mean a class of auxiliary forging equipment wherein stock is shaped between power driven rolls bearing contoured dies. (9) All belts, pulleys, gears, shafts, and moving parts shall be guarded in accordance with the specific requirements of 1910.219. (3) Tail rods or extension piston rods. 1910.160 Fixed extinguishing systems, general. 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. Provide employees with the right battery handling equipment. 1910.264 Laundry machinery and operations. The regular oilers shall wear tight-fitting clothing. Paragraph (h)(6)(xv) of the standard requires that the control system have provisions for an inch operating means; that die-setting not be done in the PSDI mode; and that production not be done in the inch mode. (4) Pressure pipes. Surface Feet per minute .262 24 1,000 = 6,288 s.f.p.m. Eligibility. (iii) Individual sensing fields of presence sensing devices used to initiate strokes in the PSDI mode shall cover only one side of the press. (d) Two hand trips shall be fixed in position so that only a supervisor or safety engineer is capable of relocating the controls. (30) Foot control means the foot operated control mechanism designed to be used with a clutch or clutch/brake control system. A separate drafting site This portion of the guard shall be self-adjusting to raise and lower with the guide. Fixing of selection shall be by means capable of supervision by the employer. Power-transmission apparatus located in basements. It shall be accessible and shall operate readily on contact. General. (i) The employer shall establish a diesetting procedure that will insure compliance with paragraph (c) of this section. 1910.426 Mixed-gas diving. The identified parts, components and subsystems shall be certified by the manufacturer to be able to withstand the functional and operational environments of the PSDI safety system. (1) All portions of the saw blade shall be enclosed or guarded, except for the working portion of the blade between the bottom of the guide rolls and the table. Work rests shall be kept adjusted closely to the wheel with a maximum opening of one-eighth inch to prevent the work from being jammed between the wheel and the rest, which may cause wheel breakage. (1) Inspection. 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. (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. (ii) Horizontal overhead belts more than seven (7) feet above floor or platform shall be guarded for their entire length under the following conditions: (a) If located over passageways or work places and traveling 1,800 feet or more per minute. The third-party validation organization, annually or after a change specified in paragraph 1., shall validate the employer's certification that the requirements of paragraph B., Installation Certification/Validation have been met. 1910.1027 Cadmium. 1910.110 Storage and handling of liquefied petroleum gases. The adaptor nut which is less than the minimum one-third diameter of wheel fits in the depressed side of wheel to prevent interference in side grinding and serves to drive the wheel by its clamping force against the depressed portion of the back flange. site when drafting amendatory language for Federal regulations: 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. 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. 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. The requirement in paragraph (h)(3)(i)(C) is intended to prevent degradation in stoping speed from higher air pressure. The maximum angular exposure above the horizontal plane of the wheel spindle as specified in paragraphs (b) (3) and (4) of this section shall never be exceeded, and the distance between the wheel periphery and the adjustable tongue or the end of the peripheral member at the top shall never exceed one-fourth inch. Where brake springs are externally accessible, lock nuts or other means may be provided to reduce the possibility of backing off of the compression nut which holds the springs in place. (3) All double-spindle shapers shall be provided with a spindle starting and stopping device for each spindle. round belts one-half (12) inch or less in diameter; and. OSHA General Industry Machinery and Machine Guarding 1910 - ISHN 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. 1910.106 Flammable liquids. (ii) Brake systems on presses used in the PSDI mode shall have sufficient torque so that each average value of stopping times (Ts) for stops initiated at approximately 45 degrees, 60 degrees, and 90 degrees, respectively, of crankshaft angular position, shall not be more than 125 percent of the average value of the stopping time at the top crankshaft position. (iii) A fixed barrier guard shall be attached securely to the frame of the press or to the bolster plate. The requirements of this paragraph are also applicable to sliding cutoff saws mounted above the table. This content is from the eCFR and may include recent changes applied to the CFR. (l) Belt shifters, clutches, shippers, poles, perches, and fasteners -. OSHA 1910.145 Warning Signs and Tags - Creative Safety Supply Showing movable guard with opening small enough to give required protection for smallest size wheel used. The clutch/brake control system shall be designed and constructed to prevent actuation of the clutch if all operating stations are bypassed. (53) Stripper means a mechanism or die part for removing the parts or material from the punch. 1. The safety requirements of this subparagraph apply to lead casts or other use of lead in the forge shop or die shop. (1) Each planing, molding, sticking, and matching machine shall have all cutting heads, and saws if used, covered by a metal guard. Structural steel (min. 1910.214 Cooperage machinery. A correlation of the brake and/or clutch degradation based on the above tests and/or estimates shall be made and documented. 14, 1988; 54 FR 24333, June 7, 1989; 61 FR 9240, Mar. (2) Brake means the mechanism used on a mechanical power press to stop and/or hold the crankshaft, either directly or through a gear train, when the clutch is disengaged. 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. (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. above floor level. The employer shall: (i) Use dies and operating methods designed to control or eliminate hazards to operating personnel, and. Electrical and/or electronic cards or boards assembled with discreet components shall be considered a subsystem and shall require separate testing that the subsystems do not degrade in any of the following conditions: (1) Ambient temperature variation from 20 C to + 50 C. 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. (j) Bearings and facilities for oiling. 7. The total system design shall be certified by the manufacturer as complying with all requirements in 29 CFR 1910.217 (a) through (h) and this appendix A. Where the operator feeds or removes parts by placing one or both hands in the point of operation, and a two hand control, presence sensing device, Type B gate or movable barrier (on a part revolution clutch) is used for safeguarding: (i) The employer shall use a control system and a brake monitor which comply with paragraphs (b) (13) and (14) of this section; (ii) The exception in paragraph (b)(7)(v)(d) of this section for two hand controls manufactured and installed before August 31, 1971 is not applicable under this paragraph (c)(5); (iii) The control of air clutch machines shall be designed to prevent a significant increase in the normal stopping time due to a failure within the operating valve mechanism, and to inhibit further operation if such failure does occur, where a part revolution clutch is employed. (See Figures O-14 and O-15. 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 . (59) Control system means sensors, manual input and mode selection elements, interlocking and decision-making circuitry, and output elements to the press operating mechanism. 1. (3) Upon issuance of the decision, any party to the hearing may file exceptions within 20 days pursuant to subpart C. If exceptions are filed, the administrative law judge shall forward the decision, exceptions and record to the Assistant Secretary for the final decision on the application. Hardwoods recommended are those whose ultimate crushing strengths in compression parallel to grain are 5,000 p.s.i. 1910.304 Wiring design and protection. (7) Nip-point belt and pulley guard means a device which encloses the pulley and is provided with rounded or rolled edge slots through which the belt passes. The test(s) shall document the range of object diameter sizes which will produce both single and double break conditions. 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 . An acceptable method for interlocking supplemental guards as required by paragraph (h)(6)(xiii) would be to incorporate the supplemental guard and the PSDI presence sensing device into a hinged arrangement in which the alignment of the presence sensing device serves, in effect, as the interlock. 1910.1052 Methylene chloride. (64) Certification or certify means, in the case of design certification/validation, that the manufacturer has reviewed and tested the design and manufacture, and in the case of installation certification/validation and annual recertification/revalidation, that the employer has reviewed and tested the installation, and concludes in both cases that the requirements of 1910.217 (a) through (h) and appendix A have been met. 2. The scale shall be marked to indicate that brake adjustment and/or replacement is required. Diamond and reinforced wheels are included. (ii) All presses shall be installed in such a manner that they remain where they are positioned or they are anchored to foundations sufficient to support them according to applicable engineering standards. (g) Swing cutoff saws. 1910.67 Vehicle-mounted elevating and rotating work platforms. of this appendix, above, except that a reinspection is not required but may be performed by OSHA. (13) Gate or movable barrier device means a movable barrier arranged to enclose the point of operation before the press stroke can be started. In powerplants or power-development rooms, a guardrail may be used in lieu of the guard required by subdivision (i) of this subparagraph. Mechanical and electrical equipment and auxiliaries shall be installed in accordance with this section and subpart S of this part. 1910.5 Applicability of standards. (23) Die shoe means a plate or block upon which a die holder is mounted. 3. 1910.219 - Occupational Safety and Health Administration (s) Inspection and maintenance of woodworking machinery. (ii) In powerplants or power-development rooms, a guardrail may be used in lieu of the guard required by subdivision (i) of this subparagraph. (2) Saws. 6. 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.

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