Minimum object sensitivity describes the largest acceptable size of the interruption in the sensing field. Inch is a function used by the die setter for setup of dies and tooling, but is not intended for use during production operations by the operator. (7) Environmental requirements. Examples: board hammers and air-lift hammers. (v) The employer shall provide brushes, swabs, lubricating rolls, and automatic or manual pressure guns so that operators and diesetters shall not be required to reach into the point of operation or other hazard areas to lubricate material, punches or dies. The dates of the period of recognition will be stated in the recognition letter. Unused keyways shall be filled up or covered. 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. (32) Guard means a barrier that prevents entry of the operator's hands or fingers into the point of operation. Compliance with 1910.217(h)(2)(iii). The spindle speed of the machine shall be checked before mounting of the wheel to be certain that it does not exceed the maximum operating speed marked on the wheel. 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 . The stroking selector generally includes positions for Off (Clutch Control), Inch, Single Stroke, and Continuous (when Continuous is furnished). (12) Pressure vessels. 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. After receipt of an application, OSHA may request additional information if it believes information relevant to the requirements for recognition have been omitted. Side grinding wheel having a diameter, thickness and hole with one side straight or flat and the opposite side recessed. Shall have legal authority to perform the validation of certification; 2. 1910.1014 2-Acetylaminofluorene. (ii) At least annually thereafter, the safety system on a mechanical power press used in the PSDI mode shall be recertified by the employer and revalidated by an OSHA-recognized third-party validation organization to meet all applicable requirements of paragraphs (a) through (h) and appendix A of this section. (1) Each planing, molding, sticking, and matching machine shall have all cutting heads, and saws if used, covered by a metal guard. Compliance with 1910.217(h)(2)(ii). "Published Edition". 6. (2) Instruction to operators. The hazard created by a guide post (when it is located in the immediate vicinity of the operator) when separated from its bushing by more than one-fourth inch shall be considered as a point of operation hazard and be protected in accordance with paragraph (c) of this section. They allow workers to reduce the amount of materials handled manually thereby increasing work capacity and production output. The third-party validation organization shall validate the employer's certifications that the PSDI safety system is design certified and validated, that the installation meets the installation and environmental requirements specified by the manufacturer, and that the installation meets the requirements of 29 CFR 1910.217 (a) through (h) and this appendix A. (14) Abrasive wheel means a cutting tool consisting of abrasive grains held together by organic or inorganic bonds. The application shall identify the scope of the validation activity for which the applicant wishes to be recognized, based on one of the following alternatives: (1) Design Certification/Validation, Installation Certification/Validation, and Annual Recertification/Revalidation; (2) Design Certification/Validation only; or. The test report shall include the following: a. Acceptance and field inspection. (1) Cup wheels. They shall be of rigid construction and designed to be adjustable to compensate for wheel wear. (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. The table throat opening shall be not more than 212 inches when tables are set or aligned with each other for zero cut. (2) Cold trimming presses. (vii) The two hand control device shall protect the operator as specified in paragraph (c)(3)(i)(e) of this section. The certification/validation process should confirm that hazards identified by hazard analysis, (HA), failure mode effect analysis (FMEA), and other system analyses have been eliminated by design or reduced to an acceptable level through the use of appropriate design features, safety devices, warning devices, or special procedures. The guard shall effectively keep the operator's hand from coming in contact with the revolving knives. The maximum exposure angles specified in paragraphs (b) (3) through (8) of this section shall not be exceeded. (h) Presence sensing device initiation (PSDI) -. If they sound cracked (dead), they shall not be used. Where guard is exposed to contact with moving equipment additional strength may be necessary. Cold trimming presses shall be safeguarded in accordance with 1910.217(c). It should also be noted that organic bonded wheels do not emit the same clear metallic ring as do vitrified and silicate wheels. In powerplants only the lower run of the belt need be guarded. 1910.420 Safe practices manual. 3. (The operational and installation requirements of the PSDI safety system may vary for different applications.). (ii) Inclined and vertical shafts, particularly inclined idler shafts, shall be securely held in position against endwise thrust. 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. No extra microswitches or interlocking sensors would be required. 3. All guards shall be rigidly braced every three (3) feet or fractional part of their height to some fixed part of machinery or building structure. 1 CFR 1.1 1910.336-1910.360 [Reserved], Safety Requirements for Special Equipment, 1910.399 Definitions applicable to this subpart. (10) Material requirements and minimum dimensions. b. (7) Machines using part revolution clutches. (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. 1910.1015 4-Dimethylaminoazobenzene. The clutch/brake control system shall be designed and constructed to prevent actuation of the clutch if all operating stations are bypassed. OSHA does not have a standard that sets a maximum limit on how much weight a person may lift or carry. This content is from the eCFR and is authoritative but unofficial. 2. 39 FR 23502, June 27, 1974, unless otherwise noted. The midrail may be one by four (1 4) inches or more. (3) Conveyors. 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. Where the drive extends over other machine or working areas, protection against falling shall be provided. 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. All d.c. control circuits shall be powered by not more than a nominal 240-volt d.c. supply isolated from any higher voltages. The Part 1910 - OSHA General Industry regulations book is designed to assist you in meeting OSHA requirements. Since that time there have been several revisions, 1987, 1990, 1993, an Addenda in 1992, 2003, 2009, 2012, and 2015. It is not an official legal edition of the CFR. 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. Installed in the front and in the back of each mill and located within 2 inches of a vertical plane tangent to the front and rear rolls. 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. (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. If the validation organization and the validating laboratory are the same organization, the administrative and technical responsibilities may be combined in a single position, with minimum requirements as described in E.1. The sides of the trough shall come within at least six (6) inches of the underside of table, or if shafting is located near floor within six (6) inches of floor. This valve shall be closed and locked in the off position while the hammer is being adjusted, repaired, or serviced, or when the dies are being changed. (i) It shall be the responsibility of the employer to provide and insure the usage of point of operation guards or properly applied and adjusted point of operation devices on every operation performed on a mechanical power press. (5) On each machine operated by electric motors, positive means shall be provided for rendering such controls or devices inoperative while repairs or adjustments are being made to the machines they control. [39 FR 23502, June 27, 1974, as amended at 39 FR 41846, Dec. 3, 1974; 53 FR 8353, Mar. d. The applicant shall identify the test methods it or the validating laboratory will use to test or judge the components and operations of the PSDI safety system required to be tested by the PSDI standard and appendix A, and shall specify the reasons the test methods are appropriate. (3) Tail rods or extension piston rods. (b) Each two hand trip shall meet the construction requirements of paragraph (b)(6) of this section. Guarding of clutches, cutoff couplings, and clutch pulleys -. a. b. 3. (i) Projecting shaft ends shall present a smooth edge and end and shall not project more than one-half the diameter of the shaft unless guarded by nonrotating caps or safety sleeves. 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. 3. (2) On machines driven by belts and shafting, a locking-type belt shifter or an equivalent positive device shall be used. If the deficiencies are not corrected, OSHA may revoke recognition, effective in 60 days, unless the validation organization requests a hearing within that time. (g) Swing cutoff saws. (1) Forging means the product of work on metal formed to a desired shape by impact or pressure in hammers, forging machines (upsetters), presses, rolls, and related forming equipment. (ii) Fixed or permanent lead pot installations shall be exhausted. 1910.103 Hydrogen. The board enclosure shall be securely fastened to the hammer. 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. (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. (i) The pedal mechanism shall be protected to prevent unintended operation from falling or moving objects or by accidental stepping onto the pedal. 1910.132 General requirements. (2) Stopping limits for mills. The third-party validation organization shall have legal authority to perform certification/validation activities. (3) Vibration of 45G for one millisecond per stroke when the item is to be mounted on the press frame. (C) The operation, function and performance of the PSDI mode. The third-party validation organization shall validate the manufacturer's certification under paragraphs 2 and 3. The upper rail shall be two by four (2 x 4) inches, or two one by four (1 x 4) strips, one at the top and one at the side of posts. Substantial modifications would require testing as a new safety system, as deemed necessary by the validation organization. 1910.212 General requirements for all machines. (1) Flywheels. (x) Hand tools. For installation certification/validation and annual recertification/revalidation, in the first stage the employer certifies or recertifies that the employer is installing or utilizing a PSDI safety system validated as meeting the design requirements of 29 CFR 1910.217 (a) through (h) and this appendix A by an OSHA-recognized third-party validation organization and that the installation, operation and maintenance meet the requirements of 29 CFR 1910.217 (a) through (h) and this appendix A. (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. In addition when unthreaded hole wheels are specified the inside flat, K dimension, shall be large enough to accommodate a suitable flange. (26) Feeding means the process of placing or removing material within or from the point of operation. (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. of this appendix, subject to the possible reinspection exception. (g) Guarding friction drives. The employer shall insure by adequate supervision that correct operating procedures are being followed. (iii) Portable units shall be used only in areas where good, general room ventilation is provided. All manually operated valves and switches shall be clearly identified and readily accessible. (3) Type 6 straight cup wheels means wheels having diameter, thickness, hole size, rim thickness, and back thickness dimensions. Such stopping distances shall be subject to engineering determination. 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). (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. (xiii) The Control system shall incorporate interlocks for supplemental guards, if used, which will prevent stroke initiation or will stop a stroke in progress if any supplemental guard fails or is deactivated. (See Figures O-6 and O-7 and paragraph (b)(9) of this section. 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. (iii) Toeboards shall be four (4) inches or more in height, of wood, metal, or of metal grill not exceeding one (1) inch mesh. The basement, tower, or room occupied by transmission equipment is locked against unauthorized entrance. 1910.266 Logging operations. (ii) Unused keyways shall be filled up or covered. Shafting shall be kept in alignment, free from rust and excess oil or grease. (ii) Safety triprod. (1) Inspection and maintenance records. 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. Each continuous line of shafting shall be secured in position against excessive endwise movement. (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. If workers need to cross over a conveyor, OSHA has specific requirements for both Construction and Marine applications of Conveyor Crossovers. The test specifications and procedures shall be made available upon request to the validation organization. FAR). (2) Type 2 cylinder wheels means wheels having diameter, wheel thickness, and rim thickness dimensions. (60) Brake monitor means a sensor designed, constructed, and arranged to monitor the effectiveness of the press braking system. (B) The safety distance shall be checked for compliance with (h)(9)(v) of this section. Preliminary disapproval. Subscribe to: Changes in Title 29 :: Subtitle B :: Chapter XVII :: Part 1910 :: Subpart O. (f) Guards shall be used to protect all areas of entry to the point of operation not protected by the presence sensing device. (i) Wheels must be dry and free from sawdust when applying the ring test, otherwise the sound will be deadened. tensile strength 50,000 p.s.i.) (3) New Design Certification/Validation. In deriving the safety distance required in paragraph (h)(9)(v), all stopping time measurements should be made with clutch/brake air pressure regulated to the press manufacturer's recommended value for full clutch torque capability. [Reserved], https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1910/subpart-O. Guarding Floor and Wall Openings and Holes OSHA Standard 1910.23 2 Overview This is a condensation of Standard 1910.23 of the Occupational Safety and Health Act. Consistency of braking action is enhanced by high brake torque. (52) Stop control means an operator control designed to immediately deactivate the clutch control and activate the brake to stop slide motion. (49) Single stroke means one complete stroke of the slide, usually initiated from a full open (or up) position, followed by closing (or down), and then a return to the full open position. 553. (iv) The following are some of the machines which usually require point of operation guarding: (4) Barrels, containers, and drums. Following a deactivation of PSDI by the timer, the system shall make it necessary to reset the set-up/reset means in order to reactivate the PSDI mode. (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. Pulleys intended to operate at rim speed in excess of manufacturers normal recommendations shall be specially designed and carefully balanced for the speed at which they are to operate. This appendix provides nonmandatory supplementary information and guidelines to assist in the understanding and use of 29 CFR 1910.217(h) to allow presence sensing device initiation (PSDI) of mechanical power presses. 1910.422 Procedures during dive. (5) Grinding. These guards shall cover at least the unused part of the periphery of the cutting head. (13) Cutting off wheels means wheels having diameter thickness and hole size dimensions and are subject to all limitations of mounting and use listed for type 1 wheels, the definition in subparagraph (1) of this paragraph and paragraph (d) of 1910.215. On the completion of such operations, the spreader shall be immediately replaced. flat belts two (2) inches or less in width which are free from metal lacings or fasteners. Use of a brake monitor does not eliminate the need for periodic brake inspection and maintenance to reduce the possibility of catastrophic failures. If, after review of the application, any additional information, and the inspection report, the applicant and any validating laboratory appear to have met the requirements for recognition, a written recommendation shall be submitted by the responsible OSHA personnel to the Assistant Secretary to approve the application with a supporting explanation. Sections 1910.217 and 1910.219 also issued under 5 U.S.C. 1910.106 Flammable liquids. Bandsaw wheels shall be fully encased. The recognition of each validation organization will be valid for five years, unless terminated before or renewed after the expiration of the period. Collars. All mechanical power transmission apparatus located in basements, towers, and rooms used exclusively for power transmission equipment shall be guarded in accordance with this section, except that the requirements for safeguarding belts, pulleys, and shafting need not be complied with when the following requirements are met: The intensity of illumination conforms to the requirements of ANSI A11.1-1965 (R-1970), which is incorporated by reference as specified in 1910.6. e-CFR 1910.219 (a) General requirements. 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.). (vi) The presence sensing device location shall either be set at each tool change and set-up to provide at least the minimum safety distance, or fixed in location to provide a safety distance greater than or equal to the minimum safety distance for all tooling set-ups which are to be used on that press. Search & Navigation 1910.1048 Formaldehyde. When required by paragraph (c)(5) of this section, the control system 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 initiation of a successive stroke until the failure is corrected. The employer shall establish and follow an inspection program having a general component and a directed component. 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. a. (1) Use of lead. "Safety Standard for Conveyors and Related Equipment" was the ANSI standard in effect at the time the 1910 Standards were promulgated. Every steam or airhammer shall have a safety cylinder head to act as a cushion if the rod should break or pullout of the ram. (2) Hand-operated gears. 14, 1988]. When dies are being changed, maintenance performed, or any work done on the machine, the power to the upsetter shall be locked out, and the flywheel shall be at rest. (a) Attachments shall be connected to and operated only by the press slide or upper die. Similarly, only presses with a configuration such that a person's body cannot completely enter the bed area are approved for PSDI. Blanking of the sensing field is not permitted. 1. EN 618:2002+A1:2010, Continuous handling equipment and systems - Safety and EMC requirements for equipment for mechanical handling of bulk materials except fixed belt conveyors EN 619:2002+A1:2010, Continuous handling equipment and systems - Safety and EMC requirements for equipment for mechanical handling of unit loads General. Conveyors are safe when used correctly, but they can be dangerous, and even deadly, if workers fail to follow safety procedures when working on or around them. 1910.1001 Asbestos. 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. The regular oilers shall wear tight-fitting clothing. It is expected that the brake monitor adjustment normally could be evaluated on the basis of the effect on the safety system certification/validation documentation retained by the validation organization. All projecting keys, setscrews, and other projections in revolving parts shall be removed or made flush or guarded by metal cover. 1910.1003 13 Carcinogens (4-Nitrobiphenyl, etc.). (4) Belt fasteners. 1910.156 Fire brigades. (viii) Those clutch/brake control systems which contain both single and continuous functions shall be designed so that completion of continuous circuits may be supervised by the employer. Appendix A to Subpart L of Part 1910Fire Protection 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. 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. 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 you need more than just a PowerPoint, be sure to hop over to . Scrap cutters used in conjunction with scrap handling systems shall be safeguarded in accordance with paragraph (c) of this section and with 1910.219. Hangers. The documentation shall include, but not be limited to, the following items: a. All drip cups and pans shall be securely fastened. Choosing an item from Object sensitivity describes the capability of a presence sensing device to detect an object in the sensing field, expressed as the linear measurement of the smallest interruption which can be detected at any point in the field. 11. 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. 1910.308 Special systems. When blotters or flange facings of compressible material are required, they shall cover entire contact area of wheel flanges. Where a disk is used, the keys or other dangerous projections not covered by disk shall be cut off or covered. The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on grinders known as automatic snagging machines shall not exceed 180 and the top half of the wheel shall be enclosed at all times.
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