(5) Universal joints on spindles of boring machines shall be completely enclosed in such a way as to prevent accidental contact by the operator. 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. PDF MNOSHA Instruction STD 1-12.9A Reissued in accessible format - Minnesota Vertical belts. A report shall be made of each field inspection. OSHA 1910.145 Warning Signs and Tags - Creative Safety Supply (E) The severe consequences that can result if he or she attempts to circumvent or by-pass any of the safeguard or operating functions of the PSDI system. Where guard is exposed to contact with moving equipment additional strength may be necessary. Conveyor power transmission equipment shall be guarded in accordance with ANSI B20.1-1957, Safety Code for Conveyors, Cableways, and Related Equipment, which is incorporated by reference as specified in 1910.6. 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. (6) Tonnage, stroke, and weight designation. A recognized validation organization may renew its recognition by filing a renewal request at the address in paragraph I.A.3. Such flanges shall be at least one-fourth the wheel diameter. (iii) A presence sensing point of operation device shall protect the operator as provided in paragraph (c)(3)(i)(a) of this section, and shall be interlocked into the control circuit to prevent or stop slide motion if the operator's hand or other part of his body is within the sensing field of the device during the downstroke of the press slide. Posts shall be not more than eight (8) feet apart; they are to be permanent and substantial, smooth, and free from protruding nails, bolts, and splinters. (i) Guardrail shall be forty-two (42) inches in height, with midrail between top rail and floor. The term manufacturers refers to the manufacturer of any of the components of the safety system. (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. Table O-7 - Minimum Dimensions for Straight Flanges - for Mechanical Grinders 12,500 S.F.P.M. 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. (4) Shot blast. (iii) A means of selecting Off, Inch, Single Stroke, and Continuous (when the continuous function is furnished) shall be supplied with the clutch/brake control to select type of operation of the press. 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. This web site is designed for the current versions of The employer shall provide means for handling scrap from roll feed or random length stock operations. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 5-2002 (67 FR 65008), or 1-2012 (77 FR 3912), as applicable; 20 CFR part 1911. 1910.1012 Ethyleneimine. Such attachments shall be securely anchored and adjusted in such a way that the operator is restrained from reaching into the point of operation. Pulleys with cracks, or pieces broken out of rims, shall not be used. The recognition of each validation organization will be valid for five years, unless terminated before or renewed after the expiration of the period. The materials and dimensions specified in this paragraph shall apply to all guards, except horizontal overhead belts, rope, cable, or chain guards more than seven (7) feet above floor, or platform. The application shall provide information demonstrating that it and any validating laboratory utilized meet the qualifications set forth in section II of this appendix. Displaying title 29, up to date as of 3/02/2023. 1910.303 General. (iii) When presses used in the PSDI mode have flywheel or bullgear running on crankshaft mounted journals and bearings, or a flywheel mounted on back shaft journals and bearings, periodic inspections following the press manufacturer's recommendations shall be made to ascertain that bearings are in good working order, and that automatic lubrication systems for these bearings (if automatic lubrication is provided) are supplying proper lubrication. (a) As used in 1910.213 and 1910.214 unless the context clearly requires otherwise, the following woodworking machinery terms shall have the meaning prescribed in this paragraph. 2. It is free of direct influence or control by manufacturers, suppliers, vendors, representatives of employers and employees, and employer or employee organizations; and. (23) Die shoe means a plate or block upon which a die holder is mounted. (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. The top rods shall be not more than 72 inches above the level on which the operator stands. A separate set of restraints shall be provided for each operator if more than one operator is required on a press. 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. (iv) An interlocked press barrier guard shall be attached to the press frame or bolster and shall be interlocked with the press clutch control so that the clutch cannot be activated unless the guard itself, or the hinged or movable sections of the guard are in position to conform to the requirements of Table O-10. This is where OSHA comes into the picture. 1910.1010 Benzidine. It is necessary to maintain clearance between the wheel side and the guard. 11. The stroking selector generally includes positions for Off (Clutch Control), Inch, Single Stroke, and Continuous (when Continuous is furnished). 3. The diameter of circular shaper guards shall be not less than the greatest diameter of the cutter. Hangers. Where a calender is so installed that persons cannot normally reach through, over, under, or around to come in contact with the roll bite or be caught between a roll and an adjacent object, then, provided such elements are made a fixed part of a calender, safety control devices listed in paragraph (c) of this section shall not apply. 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. (4) Electromagnetic interference at the same wavelengths used for the radiation sensing field, at the power line frequency fundamental and harmonics, and also from outogenous radiation due to system switching. 1910.1050 Methylenedianiline. The approval of brake monitor adjustments, as required in paragraph (h)(5)(ii), is not considered a recertification, and does not necessarily involve an on-site inspection by a representative of the validation organization. This table shows the distances that guards shall be positioned from the danger line in accordance with the required openings. 1910.1018 Inorganic arsenic. 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. Reactivation of the clutch shall require restoration of normal supply and the use of the tripping mechanism(s). The manufacturer or the manufacturer's representative shall certify to and submit to an OSHA-recognized third-party validation organization the documentation necessary to demonstrate that the PSDI safety system design is in full compliance with the requirements of 29 CFR 1910.217(a)-(h) and this appendix A, as applicable, by means of analysis, tests, or combination of both, establishing that the following additional certification/validation requirements are fulfilled. (2) Boring bits should be provided with a guard that will enclose all portions of the bit and chuck above the material being worked. (xiii) The clutch/brake control shall automatically deactivate in event of failure of the power or pressure supply for the clutch engaging means. (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. The most recent records shall be made available to OSHA upon request. 4. (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. 1910.124 General requirements for dipping and coating operations. 1910.156 Fire brigades. (10) Snagging means grinding which removes relatively large amounts of material without regard to close tolerances or surface finish requirements. (b) Portable wheels with threaded inserts or projecting studs. (A) Where presses that have slide counterbalance systems are used in the PSDI mode, the counterbalance system shall also meet the requirements of paragraph (b)(9) of this section. This exposure shall begin at a point not less than 15 below the horizontal plane of the wheel spindle. Brake capacity shall be sufficient to stop the motion of the slide quickly and capable of holding the slide and its attachments at any point in its travel. (iv) Periodic inspections of clutch and brake mechanisms shall be performed to assure they are in proper operating condition. They allow workers to reduce the amount of materials handled manually thereby increasing work capacity and production output. (1) Feed rolls of self-feed sanding machines shall be protected with a semicylindrical guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. (See Figures O-12 and O-13), (6) Swing frame grinders. (1) Guards. The validation organization and the validating laboratory shall be adequately staffed by personnel who are qualified by technical training and/or experience to conduct the validation of the certification of PSDI safety systems. If no exceptions are filed, this is the final decision of the Department of Labor. 1910.34 Coverage and definitions. Similarly, only presses with a configuration such that a person's body cannot completely enter the bed area are approved for PSDI. (vi) The adjustable barrier guard shall be securely attached to the press bed, bolster plate, or die shoe, and shall be adjusted and operated in conformity with Table O-10 and the requirements of this subparagraph. (ii) Maximum hole size for cutting-off wheels should not be larger than 14-wheel diameter. 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. 1910.1025 Lead. A certification/validation report shall be prepared for each PSDI safety system for which the certification is validated. (3) Belt pole (sometimes called a belt shipper or shipper pole,) means a device used in shifting belts on and off fixed pulleys on line or countershaft where there are no loose pulleys. (x) Hand tools. 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. When dies are being changed or maintenance is being performed on the press, the following shall be accomplished: (i) The hydraulic pumps and power apparatus shall be locked out. 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]. (50) Single stroke mechanism means an arrangement used on a full revolution clutch to limit the travel of the slide to one complete stroke at each engagement of the clutch. 1910.255 Resistance welding. If made of wood, the posts shall be two by four (2 x 4) inches or larger. The Occupational Safety and Health Administration (Osha) issued citations against Amazon at six warehouses in December 2022, . The procedures shall be based on pertinent OSHA standards and test methods, or other publicly available standards and test methods generally recognized as appropriate in the field, such as national consensus standards or published standards of professional societies or trade associations. A die shoe functions primarily as a base for the complete die assembly, and, when used, is bolted or clamped to the bolster plate or the face of slide. Blocks or wedges shall be made of material the strength and construction of which should meet or exceed the specifications and dimensions shown in Table O-11. (10) Sheaves mean grooved pulleys, and shall be so classified unless used as flywheels. (ii) The motor start button shall be protected against accidental operation. (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. (1) Inspection and maintenance records. However, the guarding of these gears is highly recommended. 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. 2. (d) Cylinders, cups, or segmental wheels that are mounted in chucks. 1910.144 Safety color code for marking physical hazards. They shall be designed to provide adequate holding power for all the thicknesses of materials being cut. 1910.8 OMB control numbers under the Paperwork Reduction Act. (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. 1910.181 Derricks. When blotters or flange facings of compressible material are required, they shall cover entire contact area of wheel flanges. (5) Electrical power supply variations of 15 percent. (3) Each tenoning machine shall have all cutting heads, and saws if used, covered by metal guards. contact the publishing agency. This responsibility includes: (i) Establishing periodic and regular maintenance safety checks and keeping certification records of these inspections which include the date of inspection, the signature of the person who performed the inspection and the serial number, or other identifier, for the forging machine which was inspected. The cleaning chamber shall have doors or guards to protect operators. (i) Point of operation is the area on a machine where work is actually performed upon the material being processed. will bring you to those results. (vi) It shall be the responsibility of the employer to ensure the competence of personnel caring for, inspecting, and maintaining power presses equipped for PSDI operation, through initial and periodic training. (1) Each planing, molding, sticking, and matching machine shall have all cutting heads, and saws if used, covered by a metal guard. Crossing Over Conveyors Safely Tm = Increase in the press stopping time at the top of the stroke, in seconds, allowed by the brake monitor for brake wear. (iv) All a.c. control circuits and solenoid value coils shall be powered by not more than a nominal 120-volt a.c. supply obtained from a transformer with an isolated secondary. (iii) Means shall be provided for disconnecting the power to the machine and for locking out or rendering cycling controls inoperable. (3) Sprockets and chains. (3) Work area. Appendix C to Subpart T of Part 1910Alternative Conditions Under 1910.401(a)(3) for Recreational Diving Instructors and Diving Guides (Mandatory). (c) The safety distance (Ds) between each two hand control device and the point of operation shall be greater than the distance determined by the following formula: (d) Two hand controls shall be fixed in position so that only a supervisor or safety engineer is capable of relocating the controls. For full revolution clutch presses with only one engaging point Tm is equal to the time necessary for one and one-half revolutions of the crankshaft. b. (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. Failure to observe these rules might cause excessive flange pressure around the hole of the wheel. As an added precaution to the requirements in paragraph (h)(2)(iii), brake adjustment locking means should be secured. Subscribe to: Changes in Title 29 :: Subtitle B :: Chapter XVII :: Part 1910 :: Subpart O. (14) Holdout or restraint device means a mechanism, including attachments for operator's hands, that when anchored and adjusted prevent the operator's hands from entering the point of operation. (4) of this appendix. (xvii) Controls with internally stored programs (e.g., mechanical, electro-mechanical, or electronic) shall meet the requirements of paragraph (b)(13) of this section, and shall default to a predetermined safe condition in the event of any single failure within the system. (f) Guards shall be used to protect all areas of entry to the point of operation not protected by the presence sensing device. Conveyor systems shall be equipped with an audible warning signal to be sounded immediately before starting up the conveyor. It should be noted that the sensing device would be by-passed in the inch mode. OSHA Regulations on Long Hair Around Machinery - Career Trend Other material, designs or dimensions affording equal or superior protection are also acceptable. (6) Types 27 and 28 depressed center wheels mean wheels having diameter, thickness, and hole size dimensions. The driving flange shall be securely fastened to the spindle and the bearing surface shall run true. The triprods shall be accessible and shall operate readily whether the rods are pushed or pulled. Without hearing. 653, 655, 657; Secretary of Labor's Order No. If you work for a Federal agency, use this drafting (34) Fixed barrier guard means a die space barrier attached to the press frame. (ii) Where explosives, explosive dusts, flammable vapors or flammable liquids exist, the hazard of static sparks from shafting shall be carefully considered. 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. It is recommended that old installations be changed to conform to this rule. Machinery shall be oiled when not in motion, wherever possible. 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. (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. (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. 1910.95 Occupational noise exposure. 1 Flanges shall be of steel, quality SAE 1040 or equivalent, annealed plate, heat treated to R. 25-30. OSHA 1926 and 1910 Standards Books | OSHA - OSHA Education Center If you have questions for the Agency that issued the current document please contact the agency directly. (i) The clutch shall release and the brake shall be applied when the external clutch engaging means is removed, deactivated, or deenergized. Vertical belts running over a lower pulley more than seven (7) feet above floor or platform shall be guarded at the bottom in the same manner as horizontal overhead belts, if conditions are as stated in paragraphs (e)(2)(ii) (a) and (c) of this section. Solid material used for this purpose shall be of an equivalent strength and firmness. Immediately before mounting, all wheels shall be closely inspected and sounded by the user (ring test) to make sure they have not been damaged in transit, storage, or otherwise. (3) Machines using full revolution positive clutches. These tests shall specify the acceptable tolerance band sufficient to assure that tolerance build-up will not render the safety distance unsafe. (iv) Light curtains used for PSDI operation shall have minimum object sensitivity not to exceed one and one-fourth inches (31.75 mm). 1910.1020 Access to employee exposure and medical records. (ii) In powerplants or power-development rooms, a guardrail may be used in lieu of the guard required by subdivision (i) of this subparagraph. 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. When the bearing surfaces become worn, warped, sprung, or damaged they should be trued or refaced. (v) When any check of the press, including those performed in accordance with the requirements of paragraphs (h)(10)(ii), (iii) or (iv) of this section, reveals a condition of noncompliance, improper adjustment, or failure, the press shall not be operated until the condition has been corrected by adjustment, replacement, or repair. 1910.509Incorporation by reference. (4) Reconstruction and modification. (8) Forging rolls mean a class of auxiliary forging equipment wherein stock is shaped between power driven rolls bearing contoured dies. In addition, a permanent label not less than 112 inches by 34 inch shall be affixed to the rear of the guard at approximately the level of the arbor, reading as follows: Danger: Do Not Rip or Plough From This End. (7) High-energy-rate forging machines mean a class of forging equipment wherein high ram velocities resulting from the sudden release of a compressed gas against a free piston impart impact to the workpiece. 1910.211 Definitions. ), (5) Surface grinders and cutting-off machines. Type 27 wheels are manufactured with flat grinding rims permitting notching and cutting operations. This exposure shall begin at a point not more than 65 above the horizontal plane of the wheel spindle. 1910.6 Incorporation by reference. (i) Diamond wheels, except certain vitrified diamond wheels. They are reinforced, organic bonded, offset hub type wheels, usually 16 inches diameter and larger, specially designed for use on cutting-off machines where mounting nut or outer flange interference cannot be tolerated. (1) Billet shears. 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. Compliance with 1910.217(h)(9)(x). a. The employer shall establish and follow an inspection program having a general component and a directed component. "Employers want to make sure their equipment is safe to operate," says McCullough. (iii) Suitable reinforcement shall be provided for the ceiling rafters or overhead floor beams, where such is necessary, to sustain safely the weight and stress likely to be imposed by the guard. 39 FR 23502, June 27, 1974, unless otherwise noted. 1910.66 Powered platforms for building maintenance. 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 drip cups and pans shall be securely fastened. tensile strength 60,000 p.s.i.) (5) Excluded machines. 1910.158 Standpipe and hose systems. (60) Brake monitor means a sensor designed, constructed, and arranged to monitor the effectiveness of the press braking system. (1) Determination of distance of travel. 1910.121 [Reserved]. Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. 1910.1011 4-Aminodiphenyl. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 5-2002 (67 FR 65008), or 1-2012 (77 FR 3912), as applicable; 20 CFR part 1911. Final decision by Assistant Secretary - a. 1910.1096 Ionizing radiation. (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. 1910.243 Guarding of portable powered tools. OSHA in the Battery Room Part Two: OSHA 1910.178(g)
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