When the periphery of the blades of a fan is less than seven (7) feet above the floor or working level, the blades shall be guarded. (a) The device may not be used on machines using full revolution clutches. Each continuous line of shafting shall be secured in position against excessive endwise movement. (1) Feed rolls and saws shall be protected by a hood or guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. (ii) furnish and enforce the use of hand tools for freeing and removing stuck work or scrap pieces from the die, so that no employee need reach into the point of operation for such purposes. Grinding is always performed on rim face, W dimension. (4) of this appendix. Workplace Violence. 1910.1025 Lead. Hardwoods recommended are those whose ultimate crushing strengths in compression parallel to grain are 5,000 p.s.i. (i) Hand-lever-operated power presses shall be equipped with a spring latch on the operating lever to prevent premature or accidental tripping. (This may be through reference to published sources which describe the test methods or procedures used.). 2. (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. Machinery shall be oiled when not in motion, wherever possible. This exposure shall begin at a point not less than 15 below the horizontal plane of the wheel spindle. This content is from the eCFR and is authoritative but unofficial. Standard conditions shall be secured by the use of the following materials. This clearance shall not exceed one-sixteenth inch. Based on this, the Assistant Secretary shall issue the final decision (including reasons) of the Department of Labor stating whether the applicant has demonstrated by a preponderance of evidence that it meets the requirements for recognition. ), (9) Exposure adjustment. ), (4) Cylindrical grinders. (iii) Table O-8 and Figure O-35 show minimum dimensions for straight flanges that are an integral part of wheel sleeves which are frequently used on precision grinding machines. Bearings. If there is a valid request for a hearing pursuant to paragraph I.B.7.b. There shall be no rough surfaces or sharp edges. In engine rooms a guardrail, preferably with toeboard, may be used instead of the guard required by paragraph (k)(1) of this section, provided such a room is occupied only by engine room attendants. If you would like to comment on the current content, please use the 'Content Feedback' button below for instructions on contacting the issuing agency. 2. Integrated Tests Certification/Validation. (iii) Toeboards shall be four (4) inches or more in height, of wood, metal, or of metal grill not exceeding one (1) inch mesh. (2) Cutting heads on wood-turning lathes, whether rotating or not, shall be covered as completely as possible by hoods or shields. In addition, the brake monitor shall be adjusted during installation certification to prevent successive stroking of the press if increases in stopping time cause an increase in the safety distance above that required by paragraph (h)(9)(v) of this section. 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. OSHA regulates conveyors specifically in its construction rule at 29 CFR 1926.555, and the general use of such equipment is regulated under general industry and contruction rules for lockout/tagout, machine guarding, signs, signals, and barricades, and under the General Duty Clause. (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. How someone is dressed loose clothing, long hair, and jewelry when working on or around conveyors can present the risk of conveyor entanglement. Where a disk is used, the keys or other dangerous projections not covered by disk shall be cut off or covered. The failure shall be detectable by a simple test, or indicated by the control system. 1910.155 Scope, application and definitions applicable to this subpart. (4) Gravity hammers mean a class of forging hammer wherein energy for forging is obtained by the mass and velocity of a freely falling ram and the attached upper die. 1910.107 Spray finishing using flammable and combustible materials. Where brake springs are externally accessible, lock nuts or other means may be provided to reduce the possibility of backing off of the compression nut which holds the springs in place. 1910.219 - Mechanical power-transmission apparatus. (3) Auxiliary equipment. (See Figures O-14 and O-15. Means must be provided to prevent tightener from falling, in case the belt breaks. This shall include the use of the test rod required by paragraph (h)(10)(i) of this section. This requirement shall apply only to those clutch/brake air-valve controls manufactured and installed on or after August 31, 1971, but shall not apply to machines intended only for continuous, automatic feeding applications. Tongs shall be of sufficient length to clear the body of the worker in case of kickback, and shall not have sharp handle ends. (i) Diamond wheels, except certain vitrified diamond wheels. (1) Inspection. 4. 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 Publication. A means of air lubrication shall be provided when needed. b. 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. f. The applicant shall certify that the information submitted is accurate. (l) Belt shifters, clutches, shippers, poles, perches, and fasteners -. (ii) All presses shall be installed in such a manner that they remain where they are positioned or they are anchored to foundations sufficient to support them according to applicable engineering standards. Employers and manufacturers are encouraged to recommend other approaches if there is a potential for improving safety and reducing cost. (5) Universal joints on spindles of boring machines shall be completely enclosed in such a way as to prevent accidental contact by the operator. (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. The intent of paragraph (h)(9)(iii) is to prohibit use of mirrors to bend a single light curtain sensing field around corners to cover more than one side of a press. 2. 1910.112-1910.113 [Reserved] (2) Safety trip, side. Paragraph (f)(1) of this section does not apply to hand-operated gears used only to adjust machine parts and which do not continue to move after hand power is removed. Die-setting and maintenance procedures shall comply with paragraphs (a) through (g) of this section, and shall not be done in the PSDI mode. 1910.121 [Reserved]. 1910.1045 Acrylonitrile. Conduct or recertification/revalidation. (25) Face of slide means the bottom surface of the slide to which the punch or upper die is generally attached. This appendix provides employers, manufacturers, and their representatives, with nonmandatory guidelines for use in developing certification documents. The certification/validation process shall verify that the safety system complies with the OSHA safety requirements as follows: 1. b. (n) Planing, molding, sticking, and matching machines. The third-party validation organization, the validating laboratory, and the employees of each shall meet the requirements set forth in this section of this appendix. Such flanges shall be at least one-fourth the wheel diameter. (iv) Periodic inspections of clutch and brake mechanisms shall be performed to assure they are in proper operating condition. 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. 1910.138 Hand protection. All applications submitted will be accepted by OSHA, and their receipt acknowledged in writing. (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. "Published Edition". 1 CFR 1.1 (3) Work area. Appendix A to Subpart S of Part 1910 References for Further Information. (11) Hydraulic equipment. An alternative manual cycle initiation and control means shall be supplied for use in die setting which meets the requirements of paragraph (b)(7) of this section. (i) 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. of this appendix, the following procedures will be used: (1) The Assistant Secretary will issue a notice of hearing before an administrative law judge of the Department of Labor pursuant to the rules specified in 29 CFR part 1905, subpart C. (2) After the hearing, pursuant to subpart C, the administrative law judge shall issue a decision (including reasons) based on the application, the supporting documentation, the staff recommendation, the public comments and the evidence submitted during the hearing (the record), stating whether it has been demonstrated, based on a preponderance of evidence, that the applicant meets the requirements for recognition. (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. 1910.35 Compliance with alternate exit-route codes. (See Figures O-6 and O-7 and paragraph (b)(9) 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 for the portion of the blade between the sliding guide and the upper-saw-wheel guard shall protect the saw blade at the front and outer side. (1) The upper hood shall completely enclose the upper portion of the blade down to a point that will include the end of the saw arbor. (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. (1) Bite means the nip point between any two inrunning rolls. The guard shall be such that it does not offer an accident hazard in itself. (1) Safety trip control. 7, 1996]. To avoid electric shock or electrocution, all equipment must be properly wired and grounded according to electrical codes. 1910.25 Stairways. The requirements for OSHA recognition of a third-party validation organization for the PSDI standard are that the program has fulfilled the requirements of section II of this appendix for qualifications and of section III of this appendix for program requirements, and the program has identified appropriate test and analysis methods to meet the requirements of the PSDI standard and appendix A. This does not apply to constant pressure controls used only for setup purposes. (ii) All metal should be free from burrs and sharp edges. (7) Power-driven guillotine veneer cutters, other than continuous trimmers, shall be provided, in addition to the brake or other stopping mechanism, with an emergency device which will prevent the machine from operating in the event of failure of the brake when the starting mechanism is in the nonstarting position. (27) Automatic feeding means feeding wherein the material or part being processed is placed within or removed from the point of operation by a method or means not requiring action by an operator on each stroke of the press. 1910.38 Emergency action plans. 3. This web site is designed for the current versions of Based upon this determination, a scale shall be developed to indicate the allowable 10 percent of the stopping time at the top of the stroke for slide or ram overtravel due to brake wear. 1910.146 Permit-required confined spaces. It is not an official legal edition of the CFR. (C) Maintain a certification record of each inspection, and each maintenance and repair task performed, under the general component of the inspection program that includes the date of the inspection, maintenance, or repair work, the signature of the person who performed the inspection, maintenance, or repair work, and the serial number, or other identifier, of the power press inspected, maintained, and repaired. The major parts, components and subsystems used shall be defined by part number or serial number, as appropriate, and by manufacturer to establish the configuration of the system. The safety trip control shall be one of the following types or a combination thereof: (i) Pressure-sensitive body bars. (f) As used in 1910.219, unless the context clearly requires otherwise, the following mechanical power-transmission guarding terms shall have the meaning prescribed in this paragraph. (ii) The PSDI mode shall not be used for die setting or set-up. Exceptions are set forth in the remaining subdivisions of this subparagraph. (5) Additional requirements for safe-guarding. 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. A summary of part level content is listed below followed by the table of contents, where you can drill down further. tensile strength 60,000 p.s.i.). 1910.6 Incorporation by reference. (See paragraph (d)(6) of this section.). 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. See paragraph (b) of 1910.215. (iii) Air-lift hammers shall be provided with two drain cocks: one on main head cylinder, and one on clamp cylinder. The validation organization shall demonstrate competence and experience in either power press design, manufacture or use, or testing, quality control or certification/validation of equipment comparable to power presses and associated control systems. If no exceptions are filed, this is the final decision of the Department of Labor. Hangers shall be inspected to make certain that all supporting bolts and screws are tight and that supports of hanger boxes are adjusted properly. (i) Prior to the initial use of any mechanical press in the PSDI mode, two sets of certification and validation are required: (A) The design of the safety system required for the use of a press in the PSDI mode shall be certified and validated prior to installation. Handling equipment attach points shall be provided on all dies requiring mechanical handling. (ii) Shafting under bench machines shall be enclosed by a stationary casing, or by a trough at sides and top or sides and bottom, as location requires. 1910.1043 Cotton dust. OSHA has two standards specific to conveyors, its 1910 standard applying to general industry. (c) The safety distance (Dm) between the two hand trip and the point of operation shall be greater than the distance determined by the following formula: Dm = minimum safety distance (inches); 63 inches/second = hand speed constant; Tm = the maximum time the press takes for the die closure after it has been tripped (seconds). Bearings and facilities for oiling. All trip and emergency switches shall not be of the automatically resetting type, but shall require manual resetting. Means must be provided to prevent tightener from falling, in case the belt breaks. (iv) The Inch operating means shall be designed to prevent exposure of the workers hands within the point of operation by: (a) Requiring the concurrent use of both hands to actuate the clutch, or. Examples of guarding methods are - barrier guards, two-hand tripping devices, electronic safety devices, etc. 1910.244 Other portable tools and equipment. a. (xiv) The control system shall perform checks for proper operation of all cycle control logic element switches and contacts at least once each cycle. Adjustment of the location of the PSDI presence sensing device shall require use of a special tool available only to the authorized persons. 1910.98 Effective dates. Grinding machines shall be equipped with flanges in accordance with paragraph (c) of this section. 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. Organization and Purpose b. (ii) If the single-stroke mechanism is dependent upon spring action, the spring(s) shall be of the compression type, operating on a rod or guided within a hole or tube, and designed to prevent interleaving of the spring coils in event of breakage. 1910.123 Dipping and coating operations: Coverage and definitions. 7, 1996; 69 FR 31882, June 8, 2004]. 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. Part 1910 Previous Next Top Enhanced Content The complete text of this part is too large to display all at once. (c) Presses. Where tools are used for feeding, removal of scrap, lubrication of parts, or removal of parts that stick on the die in PSDI operations: (A) The minimum diameter of the tool handle extension shall be greater than the minimum object sensitivity of the presence sensing device(s) used to initiate press strokes; or. (14) No saw, cutter head, or tool collar shall be placed or mounted on a machine arbor unless the tool has been accurately machined to size and shape to fit the arbor. The validation organization shall demonstrate a capability for selecting, reviewing, and/or validating appropriate standards and test methods to be used for validating the certification of PSDI safety systems, as well as for reviewing judgements on the safety of PSDI safety systems and their conformance with the requirements of this section. (ii) Two-hand trip systems on full revolution clutch machines shall incorporate an antirepeat feature. (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. (h) Presence sensing device initiation (PSDI) -. ), (5) Surface grinders and cutting-off machines.
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