e. The generation of the test signal introduced into the system for measuring reaction time shall be such that the initiation time can be established with an error of less than 0.5 percent of the reaction time measured. (m) Standard guards - general requirements -. (1) Inspection and maintenance records. (2) The opening in the table shall be kept as small as possible. (xi) Where there is more than one operator of a press used for PSDI, each operator shall be protected by a separate, independently functioning, presence sensing device. This exposure shall begin at a point not less than 15 below the horizontal plane of the wheel spindle. Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. The employer shall operate his presses within the tonnage and attachment weight ratings specified by the manufacturer. (i) Limitation: Cutting off wheels are recommended only for use on specially designed and fully guarded machines and are subject to the following maximum thickness and hole size limitations. A controlled clearance between the wheel hole and the machine spindle (or wheel sleeves or adaptors) is essential to avoid excessive pressure from mounting and spindle expansion. Handling equipment attach points shall be provided on all dies requiring mechanical handling. 1910.123 Dipping and coating operations: Coverage and definitions. (1) Each circular resaw shall be guarded by a hood or shield of metal above the saw. Exceptions are set forth in the remaining subdivisions of this subparagraph. b. 1910.166-1910.168 [Reserved] (ii) If the belt is of the endless type or laced with rawhide laces, and a belt shifter is not desired, the belt will be considered guarded if the nip point of the belt and pulley is protected by a nip point guard located in front of the cone extending at least to the top of the largest step of the cone, and formed to show the contour of the cone in order to give the nip point of the belt and pulley the maximum protection. (10) Snagging means grinding which removes relatively large amounts of material without regard to close tolerances or surface finish requirements. Mechanical and electrical equipment and auxiliaries shall be installed in accordance with this section and subpart S of this part. The eCFR is displayed with paragraphs split and indented to follow Vertical belts. Where guard is exposed to contact with moving equipment additional strength may be necessary. The dates of the period of recognition will be stated in the recognition letter. (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. 1910.502 Healthcare. 1910.132 General requirements. These guards shall effectively prevent the hands or fingers of the operator from coming in contact with the nip points. Since that time there have been several revisions, 1987, 1990, 1993, an Addenda in 1992, 2003, 2009, 2012, and 2015. (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. 1910.109 Explosives and blasting agents. 1910.305 Wiring methods, components, and equipment for general use. b. 1910.1013 beta-Propiolactone. It is necessary to maintain clearance between the wheel side and the guard. a. (2) It is recommended, however, that no projecting setscrews or oilcups be used in any revolving pulley or part of machinery. 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. You are using an unsupported browser. 1910.1200 Hazard communication. (4) Tongs. 3. above floor level. (3) Each hand-fed circular ripsaw shall be provided with nonkickback fingers or dogs so located as to oppose the thrust or tendency of the saw to pick up the material or to throw it back toward the operator. (11) Safety system certification/validation. 1910.1012 Ethyleneimine. (2) Where an exhaust system is used, the guards shall form part or all of the exhaust hood and shall be constructed of metal of a thickness not less than that specified in paragraph (h)(1) of this section. Such changes in operational conditions as die changes or press relocations not involving disassembly or revision to the safety system would not require recertification/revalidation.). (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. Consistency of braking action is enhanced by high brake torque. "Published Edition". (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 would not be necessary to repeat the tests on individual safety systems of the same manufacture or design. (vii) Material handling equipment shall be of adequate strength, size, and dimension to handle diesetting operations safely. All surrounding floors shall be kept in good condition and free from obstructions, grease, oil, and water. 1910.269 Electric power generation, transmission, and distribution. A sound and undamaged wheel will give a clear metallic tone. 14, 1988; 54 FR 24333, June 7, 1989; 61 FR 9240, Mar. (ii) Fixed or permanent lead pot installations shall be exhausted. (ii) If operating speed does not exceed 8,000 surface feet per minute cast iron safety guards, malleable iron guards or other guards as described in paragraph (b)(10)(iii) of this section shall be used. These safety training PowerPoints cover the items specified by OSHA standards. 6. The certification/validation process should also confirm that residual hazards identified by operational analysis are addressed by warning, labeling safety instructions or other appropriate means. 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. (1) Bite means the nip point between any two inrunning rolls. Overhead-rope and chain-drive guard construction shall conform to the rules for overhead-belt guard. 2. (vi) The employer shall notify the OSHA-recognized third-party validation organization within five days of the occurrence of any point of operation injury while a press is used in the PSDI mode. If the conveyor runs overhead, precautions must be taken to prevent injuries from materials that may fall from above. Both types are reinforced, organic bonded wheels having offset hubs which permit side and peripheral grinding operations without interference with the mounting. 1910.12 Construction work. Cold trimming presses shall be safeguarded in accordance with 1910.217(c). a. (iii) Types 16, 17, 18, 18R, and 19 cones, plugs, and threaded hole pot balls where the work offers protection. single strand V-belts, the width of which is thirteen thirty-seconds (1332) inch or less. (1) Belts include all power transmission belts, such as flat belts, round belts, V-belts, etc., unless otherwise specified. Where light curtain object sensitivity is user-adjustable, either discretely or continuously, design features shall limit the minimum object sensitivity adjustment not to exceed one and one-fourth inches (31.75 mm). 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) If two-hand trip systems are used on multiple operator presses, each operator shall have a separate set of controls. An open space, not exceeding four (4) inches in width, may be left between the outside edge of the disk and the rim of the wheel if desired, to facilitate turning the wheel over. All power-transmission equipment shall be inspected at intervals not exceeding 60 days and be kept in good working condition at all times. Overhead-rope and chain-drive guard construction shall conform to the rules for overhead-belt guard. ), (4) Cylindrical grinders. 1910.169 Air receivers. formatting. site when drafting amendatory language for Federal regulations: (1) The feed rolls of roll type glue spreaders shall be guarded by a semicylindrical guard. (3) For the Textile Industry, because of the presence of excessive deposits of lint, which constitute a serious fire hazard, the sides and face sections only of nip-point belt and pulley guards are required, provided the guard shall extend at least six (6) inches beyond the rim of the pulley on the in-running and off-running sides of the belt and at least two (2) inches away from the rim and face of the pulley in all other directions. (c) The device shall be constructed so that a failure within the system does not prevent the normal stopping action from being applied to the press when required, but does prevent the initiation of a successive stroke until the failure is corrected. After receipt of a notification of preliminary disapproval, the applicant may submit a revised application for further review by OSHA pursuant to subsection I.B. (57) Two-hand trip means a clutch actuating means requiring the concurrent use of both hands of the operator to trip the press. Engine rooms. 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: Completely barred by a guardrail or other barrier in accordance with paragraphs (m) and (o) of this section; or. 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. The midrail may be one by four (1 x 4) inches or more. (25) Face of slide means the bottom surface of the slide to which the punch or upper die is generally attached. b. Malleable iron (min. (3) Vibration of 45G for one millisecond per stroke when the item is to be mounted on the press frame. 6. (ii) Unused keyways shall be filled up or covered. All metal should be free from burrs and sharp edges. The documentation shall include, but not be limited to, the following items: a. 1910.36 Design and construction requirements for exit routes. Provide employees with the right battery handling equipment. 1910.180 Crawler locomotive and truck cranes. 1910.1026 Chromium (VI). It is free of direct influence or control by manufacturers, suppliers, vendors, representatives of employers and employees, and employer or employee organizations; and. In all other industries, wood guards shall not be used. (1) Safety trip control. (a) 24-inch diameter wheel, 1,000 revolutions per minute. This subparagraph does not apply to keys or setscrews within gear or sprocket casings or other enclosures, nor to keys, setscrews, or oilcups in hubs of pulleys less than twenty (20) inches in diameter where they are within the plane of the rim of the pulley. 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. (3) The top of the cutting chain and driving mechanism shall be enclosed. 1. (i) The control system on presses used in the PSDI mode shall meet the applicable requirements of paragraphs (b)(7), (b)(8), (b)(13), and (c)(5) of this section. This content is from the eCFR and may include recent changes applied to the CFR. (2) Cranks and connecting rods. If it so determines, it shall revalidate the employer's recertification that the PSDI system is in full conformance with all requirements of 29 CFR 1910.217(a) through (h) and this appendix A. 1910.5 Applicability of standards. (4) Guards for horizontal overhead rope and chain drives. Test results obtained from development testing may be used to certify/validate the design. (2) All knives and cutting heads of woodworking machines shall be kept sharp, properly adjusted, and firmly secured. Organization and Purpose Upon request, the employer must make available to that office all tests and analyses for OSHA review. (iii) Be constructed and installed in a manner to monitor brake system performance on each stroke. 1910.211 Definitions. Without hearing. (58) Unitized tooling means a type of die in which the upper and lower members are incorporated into a selfcontained unit so arranged as to hold the die members in alignment. Maximum hole size for all other applications should not exceed one-half wheel diameter. The angular exposure of the grinding wheel periphery and sides for safety guards used on machines known as bench and floor stands should not exceed 90 or one-fourth of the periphery. (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. [57 FR 42389, Sept. 14, 1992; 58 FR 4549, Jan. 14, 1993; 58 FR 35308, June 30, 1993; 59 FR 4437, Jan. 31, 1994; 59 FR 36695, July 19, 1994; 59 FR 51672, Oct. 12, 1994; 61 FR 5507, Feb. 13, 1996; 61 FR 9227, March 7, 1996; 61 FR 31427, June 20, 1996; 62 FR 1493, Jan. 10, 1997; 62 FR 42666, Aug. 8, 1997; 62 FR 48175, Sept. 15, 1997; 62 FR 66275, Dec. 18, 1997; 63 FR 1152, Jan. 8, 1998; 63 FR 13338, March 19, 1998; 63 FR 17093, April 8, 1998; 63 FR 20098, April 23, 1998; 63 FR 33450, June 18, 1998; 63 FR 66270, Dec. 1, 1998; 64 FR 13908, March 23, 1999; 65 FR 46818, July 31, 2000; 68 FR 32638, June 2, 2003; 68 FR 75780, Dec. 31, 2003; 71 FR 10374, Feb. 28, 2006; 76 FR 33606, June 8, 2011; 77 FR 17765, March 26, 2012; 81 FR 48710, July 26, 2016; 81 FR 60272, September 1, 2016; 81 FR 82981, Nov. 18, 2016; 82 FR 31253, July 6, 2017; 83 FR 9702, March 7, 2018], Occupational Safety & Health Administration, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. (vii) Where presence sensing device location is adjustable, adjustment shall require the use of a special tool available only to authorized persons. The guard shall automatically adjust itself to cover the unused portion of the head and shall remain in contact with the material at all times. (2) Boring bits should be provided with a guard that will enclose all portions of the bit and chuck above the material being worked. 3. 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. FAR). (i) Mechanical power presses used in the PSDI mode shall be operated under the control of a safety system which, in addition to meeting the applicable requirements of paragraphs (b)(13) and (c)(5) and other applicable provisions of this section, shall function such that a single failure or single operating error shall not cause injury to personnel from point of operation hazards. The Occupational Safety and Health Administration (Osha) issued citations against Amazon at six warehouses in December 2022, . Regulation 1910.178(g)(2) also mandates "adequate ventilation" in battery charging areas. 7, 1996]. (See Figures O-18, O-19, O-20, O-21, O-22, and O-23.). (iii) Stamped to indicate complete die weight when handling equipment may become overloaded. The requirement in paragraph (h)(3)(i)(C) is intended to prevent degradation in stoping speed from higher air pressure. (3) Installation/Certification/Validation and Annual Recertification/Revalidation. (iii) Individual sensing fields of presence sensing devices used to initiate strokes in the PSDI mode shall cover only one side of the press. (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. The PSDI set-up/reset means required by paragraph (h)(6)(iv) may be initiated by the actuation of a special momentary pushbutton or by the actuation of a special momentary pushbutton and the initiation of a first stroke with two hand controls. (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). (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 validation organization and/or validating laboratory shall have established written procedures for test and certification/validation of PSDI safety systems. (1) Flywheels. 3. Subpart O: Machinery and Machine Guarding, OSHA 1910 General - UpCodes (e) The safety distance (Ds) from the sensing field to the point of operation shall be greater than the distance determined by the following formula: Ds = minimum safety distance (inches); 63 inches/second = hand speed constant; Ts = stopping time of the press measured at approximately 90 position of crankshaft rotation (seconds). b. [39 FR 23502, June 27, 1974, as amended at 39 FR 41846, Dec. 3, 1974; 53 FR 8353, Mar. The test specification and procedure shall be submitted to the validation organization for review and validation prior to the test. If such guard is constructed of sheet metal, the material used shall be not less than 116 inch in thickness, and if cast iron is used, it shall be not less than three-sixteenths inch in thickness. (xiv) The clutch/brake control shall automatically deactivate in event of failure of the counterbalance(s) air supply. (i) The requirements of paragraph (h) shall apply to all part revolution mechanical power presses used in the PSDI mode of operation. 1910.304 Wiring design and protection. (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. (2) Lockouts. The control system shall require that each sensing field be interrupted the selected number of times prior to initiating a stroke. (i) Standard conditions shall be secured by the use of the following materials. 5. All drip cups and pans shall be securely fastened. OSHA Requirements: Machine Guarding - Grainger KnowHow 1910.107 Spray finishing using flammable and combustible materials. Employers and manufacturers are encouraged to recommend other approaches if there is a potential for improving safety and reducing cost. (10) Sheaves mean grooved pulleys, and shall be so classified unless used as flywheels. 3 Slenderness ratio formula for short columns is L/d = 11, where L = length of timber in inches and d = least dimension in inches; this ratio should not exceed 11. Reaction time means the time, in seconds, it takes the signal, required to activate/deactivate the system, to travel through the system, measured from the time of signal initiation to the time the function being measured is completed. (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. Tail rods or extension piston rods. and 2. for the combined position. (3) All double-spindle shapers shall be provided with a spindle starting and stopping device for each spindle. Shall have legal authority to perform the validation of certification; 2. 1910.6 Incorporation by reference. (1) General. (i) Expanded metal, sheet or perforated metal, and wire mesh shall be securely fastened to frame. 1910.37 Maintenance, safeguards, and operational features for exit routes. Side grinding wheel having a diameter, thickness and hole with one side straight or flat and the opposite side recessed. All new mill installations shall be installed so that the top of the operating rolls is not less than 50 inches above the level on which the operator stands, irrespective of the size of the mill. Guarding. The maximum exposure angles specified in paragraphs (b) (3) through (8) of this section shall not be exceeded. 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]. 4. Materials should be placed on the conveyor so that they will ride safely. 1910.135 Head protection. (d) Muting (bypassing of the protective function) of such device, during the upstroke of the press slide, is permitted for the purpose of parts ejection, circuit checking, and feeding. Pulley speeds. (ii) Type 1 cutting-off wheels are to be mounted between properly relieved flanges which have matching bearing surfaces. 4. Cup wheels (Types 6 and 11) shall be protected by: (i) Safety guards as specified in paragraphs (b) (1) through (10) of this section; (ii) Band type guards as specified in paragraph (b)(11) of this section; and. (ii) (A) PSDI shall be implemented only by use of light curtain (photo-electric) presence sensing devices which meet the requirements of paragraph (c)(3)(iii)(c) of this section unless the requirements of the following paragraph have been met. 1. contact the publishing agency. 2. 1910.151 Medical services and first aid.