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. (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. (See Figures O-10 and O-11 and subparagraph (9) of this paragraph. When flywheel extends into pit or is within 12 inches of floor, a standard toeboard shall also be provided; (iii) When the upper rim of flywheel protrudes through a working floor, it shall be entirely enclosed or surrounded by a guardrail and toeboard. (See Figures O-18, O-19, O-20, O-21, O-22, and O-23.). [Reserved], https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1910/subpart-O. (47) Repeat means an unintended or unexpected successive stroke of the press resulting from a malfunction. Where guard is exposed to contact with moving equipment, additional strength may be necessary. (9) Push sticks or push blocks shall be provided at the work place in the several sizes and types suitable for the work to be done. 12 or .262 diameter in inches r.p.m. 1910.1010 Benzidine. The minimum guarding line is the distance between the infeed side of the guard and the danger line which is one-half inch from the danger line. (iv) Records of the installation certification and validation and the most recent recertification and revalidation shall be maintained for each safety system equipped press by the employer as long as the press is in use. Such tools shall not be in lieu of other guarding required by this section, but can only be used to supplement protection provided. 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. 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. All applications submitted will be accepted by OSHA, and their receipt acknowledged in writing. (See Figures O-8 and O-9. (10) Sheaves mean grooved pulleys, and shall be so classified unless used as flywheels. Regulation Y 1910.1048 Formaldehyde. (2) Instruction to operators. 1910.157 Portable fire extinguishers. 1910.143 Nonwater carriage disposal systems. The time increase allowed shall be limited to no more than 10 percent of the longest press stopping time measured at the top of the stroke, or 10 milliseconds, whichever is longer. (12) Presence sensing device means a device designed, constructed and arranged to create a sensing field or area that signals the clutch/brake control to deactivate the clutch and activate the brake of the press when any part of the operator's body or a hand tool is within such field or area. (ii) The inside diameter of the band shall not be more than 1 inch larger than the outside diameter of the wheel, and shall be mounted as nearly concentric with the wheel as practicable. (ii) The employer shall provide spring loaded turnover bars, for presses designed to accept such turnover bars. The penetration depth factor shall be determined from Graph h-1 using the minimum object sensitivity size. (1) General. (i) Guardrail shall be forty-two (42) inches in height, with midrail between top rail and floor. 3. (vi) A holdout or a restraint device shall protect the operator as specified in paragraph (c)(3)(i)(c) of this section and shall include attachments for each of the operator's hands. (a) 24-inch diameter wheel, 1,000 revolutions per minute. Saws to which gum has adhered on the sides shall be immediately cleaned. Mandatory requirements for certification/validation of the PSDI safety system are provided in appendix A and appendix C to this standard. The machine guarding standard, 29 Code of Federal Regulations (CFR 1910.212), always seems to make OSHA's Top 10 Most Frequently Cited list. After installation of point of operation guards and before a job is released for operation a check should be made to verify that the guard will prevent the operator's hands from reaching the point of operation. 2. 1910.36 Design and construction requirements for exit routes. The spreader shall be attached so that it will remain in true alignment with the saw even when either the saw or table is tilted. (c) As used in 1910.216, unless the context clearly requires otherwise, the following mills and calenders in the rubber and plastic industries terms shall have the meanings prescribed in this paragraph. (ix) If foot control is provided, the selection method between hand and foot control shall be separate from the stroking selector and shall be designed so that the selection may be supervised by the employer. (1) Machine guarding. The model is based on medical research into the forces needed to cause damage to . The application shall provide information demonstrating that it and any validating laboratory utilized meet the qualifications set forth in section II of this appendix. 1910.401 Scope and application. 1910.8 OMB control numbers under the Paperwork Reduction Act. 1910.1450 Occupational exposure to hazardous chemicals in laboratories. This content is from the eCFR and is authoritative but unofficial. (3) Steam hammers mean a type of drop hammer where the ram is raised for each stroke by a double-action steam cylinder and the energy delivered to the workpiece is supplied by the velocity and weight of the ram and attached upper die driven downward by steam pressure. (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. (3) Each hand-fed jointer with a horizontal cutting head shall have an automatic guard which will cover all the section of the head on the working side of the fence or gage. The validation organization or validating laboratory shall have a follow-up system for inspecting or testing manufacturer's production of design certified/validated PSDI safety system components and subassemblies where deemed appropriate by the validation organization. Collars. 4. (12) Pressure vessels. 1 Flanges shall be of steel, quality SAE 1040 or equivalent, annealed plate, heat treated to R. 25-30. 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. 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. 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. 1910.30 Training requirements. (33) Die enclosure guard means an enclosure attached to the die shoe or stripper, or both, in a fixed position. 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. (1) Minimum requirements. 1910.111 Storage and handling of anhydrous ammonia. (i) Point of operation devices shall protect the operator by: (a) Preventing and/or stopping normal stroking of the press if the operator's hands are inadvertently placed in the point of operation; or, (b) Preventing the operator from inadvertently reaching into the point of operation, or withdrawing his hands if they are inadvertently located in the point of operation, as the dies close; or, (c) Preventing the operator from inadvertently reaching into the point of operation at all times; or, (e) Requiring application of both of the operator's hands to machine operating controls and locating such controls at such a safety distance from the point of operation that the slide completes the downward travel or stops before the operator can reach into the point of operation with his hands; or, (f) Enclosing the point of operation before a press stroke can be initiated, and maintaining this closed condition until the motion of the slide had ceased; or. (9) Flanges means collars, discs or plates between which wheels are mounted and are referred to as adaptor, sleeve, or back up type. Bearings. a. 1910.120 Hazardous waste operations and emergency response. 2. (xvi) The control system shall permit only a single stroke per initiation command. (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. 1910.137 Electrical protective equipment. (h) Keys, setscrews, and other projections. Inspections of the clutch/brake mechanism, antirepeat feature, and single-stroke mechanism conducted under the directed component of the inspection program are exempt from the requirement to maintain certification records specified by paragraph (e)(1)(i)(C) of this section, but inspections of the clutch/brake mechanism, antirepeat feature, and single-stroke mechanism conducted under the general component of the inspection program are not exempt from this requirement. The use of belt poles as substitutes for mechanical shifters is not recommended. 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. The OSHA catwalk width requirements are found in section 1910.28 (b) (5) (ii) (A). All abrasive wheels shall be mounted between flanges which shall not be less than one-third the diameter of the wheel. [39 FR 23502, June 27, 1974, as amended at 49 FR 5323, Feb. 10, 1984; 51 FR 34561, Sept. 29, 1986; 61 FR 9240, Mar. (1) Safety-bit chucks with no projecting set screws shall be used. (iii) Full revolution mechanical power presses shall not be used in the PSDI mode of operation. If the validation organization has been recognized for more than one year, meets the requirements for expansion of recognition, and there is no evidence that the recognized validation organization has not been following the requirements of this appendix and the letter of recognition, an expansion will normally be granted. (2) Inspection and maintenance. Mines. This contact form is only for website help or website suggestions. "They . Click on the image to download the training you need, and they will be automatically downloaded. b. An application may be withdrawn by an applicant, without prejudice, at any time prior to the final decision by the Assistant Secretary in paragraph I.B.8.b. 3. Employees are also encouraged to pay close attention to work pieces that have slots or other surface profiles that may increase the risk of entanglement. (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. The safety guard shall be mounted so as to maintain proper alignment with the wheel, and the strength of the fastenings shall exceed the strength of the guard, except: (i) Safety guards on all operations where the work provides a suitable measure of protection to the operator, may be so constructed that the spindle end, nut, and outer flange are exposed; and where the nature of the work is such as to entirely cover the side of the wheel, the side covers of the guard may be omitted; and. 1. (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. (15) Organic wheels means wheels which are bonded by means of an organic material such as resin, rubber, shellac, or other similar bonding agent. d. When one year has elapsed since the installation certification/validation or the last recertification/revalidation. 3. (12) Safety guard means an enclosure designed to restrain the pieces of the grinding wheel and furnish all possible protection in the event that the wheel is broken in operation. 1910.151 Medical services and first aid. 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. This requirement pertains only to those single-stroke, two-hand controls manufactured and installed on or after August 31, 1971. (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. Showing adjustable tongue giving required angular protection for all sizes of wheel used. Guards. (iii) Stamped to indicate complete die weight when handling equipment may become overloaded. When a press is equipped for PSDI operation, it is recommended that the presence sensing device be active as a guarding device in other production modes. 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. (8) Hinged saw tables shall be so constructed that the table can be firmly secured in any position and in true alignment with the saw. (iii) The brake monitor setting shall allow an increase of no more than 10 percent of the longest stopping time for the press, or 10 milliseconds, whichever is longer, measured at the top of the stroke. (v) An indicator visible to the operator and readily seen by the employer shall be provided which shall clearly indicate that the system is set-up for cycling in the PSDI mode. (ii) Air-lift hammers shall have an air shutoff valve as required in paragraph (d)(2) of this section. (1) Safety trip, face. (8) Surface feet per minute (s.f.p.m.) Table O-9 - Minimum Basic Thicknesses of Peripheral and Side Members for Safety Guards. (See Figures O-6 and O-7 and paragraph (b)(9) of this section. (9) All belts, pulleys, gears, shafts, and moving parts shall be guarded in accordance with the specific requirements of 1910.219. 1910.218 Forging machines. 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. 1910.97 Nonionizing radiation. (1) Antirepeat means the part of the clutch/brake control system designed to limit the press to a single stroke if the tripping means is held operated. (h) Modified types 6 and 11 wheels (terrazzo). Die-setting shall not be done in the PSDI mode. (13) Whenever veneer slicers or rotary veneer-cutting machines have been shutdown for the purpose of inserting logs or to make adjustments, operators shall make sure that machine is clear and other workmen are not in a hazardous position before starting the machine. These records shall be available for inspection by OSHA and OSHA State Plan offices. fOSHA Conveyor Standards (ii) The following checks shall be made at the beginning of each shift and whenever a die change is made. The sides of the lower exposed portion of the blade shall be guarded to the full diameter of the blade by a device that will automatically adjust itself to the thickness of the stock and remain in contact with stock being cut to give maximum protection possible for the operation being performed. (xiv) The clutch/brake control shall automatically deactivate in event of failure of the counterbalance(s) air supply. (iii) Types 16, 17, 18, 18R, and 19 cones, plugs, and threaded hole pot balls where the work offers protection. (4) Installation shall be in such a manner that the front end of the unit will be slightly higher than the rear, so as to cause the cutting head to return gently to the starting position when released by the operator. 2. (3) Limit chains or other equally effective devices shall be provided to prevent the saw from swinging beyond the front or back edges of the table, or beyond a forward position where the gullets of the lowest saw teeth will rise above the table top. The outside periphery of the enclosure shall be solid. Side grinding wheel having a diameter, thickness and wall - wheel is mounted on the diameter. The control system shall require that each sensing field be interrupted the selected number of times prior to initiating a stroke. There shall be no rough surfaces or sharp edges. ), (4) Cylindrical grinders. 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. Wall thickness at the back is normally greater than at the grinding face (W). Belts which of necessity must be shifted by hand and belts within seven (7) feet of the floor or working platform which are not guarded in accordance with this section shall not be fastened with metal in any case, nor with any other fastening which by construction or wear will constitute an accident hazard. Unused keyways shall be filled up or covered. (xiii) The clutch/brake control shall automatically deactivate in event of failure of the power or pressure supply for the clutch engaging means. Toeboards shall be four (4) inches or more in height, of wood, metal, or of metal grill not exceeding one (1) inch mesh. PART 1910 - OCCUPATIONAL SAFETY AND HEALTH STANDARDS Source: 39 FR 23502, June 27, 1974, unless otherwise noted. (1) Feed chains and sprockets of all double end tenoning machines shall be completely enclosed, except for that portion of chain used for conveying the stock. (l) Belt shifters, clutches, shippers, poles, perches, and fasteners -. Annually, or after a change specified in paragraph 1., the employer shall inspect and recertify the installation as meeting the requirements set forth under B., Installation Certification/Validation. Filing office location. The driving flange shall be securely fastened to the spindle and the bearing surface shall run true. round belts one-half (12) inch or less in diameter; and. (a)(1) OSHA Basics: OSHA's Special Industry Standards in Subpart R The upper run shall be so guarded as to prevent contact therewith either by the worker or by objects carried by him. (ii) Safety triprod. 7, 1996]. The guard shall prevent opening of the interlocked section and reaching into the point of operation prior to die closure or prior to the cessation of slide motion. You are using an unsupported browser. See paragraph (c) of 1910.215 for full description. (7) Feeder attachments shall have the feed rolls or other moving parts so covered or guarded as to protect the operator from hazardous points. The manufacturer's recommended minimum lining depth shall be identified and documented, and an evaluation made that the minimum depth will not be exceeded before the next (annual) recertification/revalidation.
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