osha conveyor safety 1910midwest selects hockey
), Wherever the nature of the work requires contact with the wheel below the horizontal plane of the spindle, the exposure shall not exceed 125. Where prong anchor or cupback bushing are used, this footnote does not apply. (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. (1) Minimum requirements. (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. The angular exposure of the grinding wheel periphery and sides for safety guards used on machines known as bench and floor stands should not exceed 90 or one-fourth of the periphery. Mechanical and electrical equipment and auxiliaries shall be installed in accordance with this section and subpart S of this part. This is where OSHA comes into the picture. (ii) The employer shall certify that employees have been trained by preparing a certification record which includes the identity of the person trained, the signature of the employer or the person who conducted the training, and the date the training was completed. In 2015 it again made list, coming in at number ten. (f) Guards shall be used to protect all areas of entry to the point of operation not protected by the presence sensing device. If the increase in press stopping time exceeds the brake monitor setting limit defined in paragraph (h)(5)(iii), the test shall be considered unsuccessful, and the cause of the excessive stopping time shall be investigated. Exceptions are set forth in the remaining subdivisions of this subparagraph. It shall include instruction relative to the following items for presses used in the PSDI mode. Title 29 was last amended 2/24/2023. (ix) Diamond wheels, except certain vitrified diamond wheels. Appendix C to Subpart I of Part 1910Personal Fall Protection Systems Non-Mandatory Guidelines Momentary operation of the stop control shall immediately deactivate the clutch and apply the brake. Demonstrations that such adjustments as may be needed (such as to the brake monitor setting) have been accomplished with proper changes made in the records and on such notices as are located on the press and safety system. (iv) Cylinders, cups, or segmental wheels that are mounted in chucks. (1) Each planing, molding, sticking, and matching machine shall have all cutting heads, and saws if used, covered by a metal guard. In all other industries, wood guards shall not be used. 1910.305 Wiring methods, components, and equipment for general use. 1910.119 Process safety management of highly hazardous chemicals. 1910.1008 bis-Chloromethyl ether. Necessary maintenance or repair or both shall be performed and completed before the press is operated. It is recommended, however, that no projecting setscrews or oilcups be used in any revolving pulley or part of machinery. 1910.98 Effective dates. ), (7) Automatic snagging machines. 1910.1003 13 Carcinogens (4-Nitrobiphenyl, etc.). The adjustment shall not be made with the wheel in motion. (4) The Assistant Secretary shall review the record, the decision by the administrative law judge, and the exceptions. If the safeguard is not described in this section, give a complete description. d. Statement that the safety system conforms with all requirements of the PSDI standard and appendix A. A U type guard is permissible. (4) This section covers the principal features with which power transmission safeguards shall comply. Side grinding wheel having a diameter, thickness and wall - wheel is mounted on the diameter. (3) Guarding vertical and inclined shafting. 1910.94 Ventilation. 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. (xiii) The clutch/brake control shall automatically deactivate in event of failure of the power or pressure supply for the clutch engaging means. However, the National Institute for Occupational Safety and Health developed a mathematical model that helps predict the risk of injury based on the weight being lifted and accounts for many additional factors. (i) The employer shall establish a diesetting procedure that will insure compliance with paragraph (c) of this section. (iv) Periodic inspections of clutch and brake mechanisms shall be performed to assure they are in proper operating condition. (2) Hydraulic forging presses. See paragraph (c) of 1910.215 for full description. The machine guarding standard, 29 Code of Federal Regulations (CFR 1910.212), always seems to make OSHA's Top 10 Most Frequently Cited list. (ii) Inclined and vertical shafts, particularly inclined idler shafts, shall be securely held in position against endwise thrust. (s) Inspection and maintenance of woodworking machinery. 1. (iv) Type of safeguard(s) being used (two hand control, two hand trip, pullouts, sweeps, or other). 2. The Assistant Secretary, or a special designee for this purpose, will make a preliminary decision whether the applicant has met the requirements for recognition based on the completed application file and the written staff recommendation, as well as the statement of reasons by the applicant if there is a recommendation of disapproval. (11) Hydraulic equipment. Appendix A to Subpart I of Part 1910References for Further Information (Non-mandatory) Such tools shall not be in lieu of other guarding required by this section, but can only be used to supplement protection provided. It should also be noted that organic bonded wheels do not emit the same clear metallic ring as do vitrified and silicate wheels. A press consists of a stationary bed or anvil, and a slide (or slides) having a controlled reciprocating motion toward and away from the bed surface, the slide being guided in a definite path by the frame of the press. (i) See Figures O-36 and O-37 and Table O-9 for minimum basic thickness of peripheral and side members for various types of safety guards and classes of service. (3) Cylinder draining. Nonmandatory supplementary information and guidelines relating to certification/validation of the PSDI safety system are provided to appendix B to this standard. The test(s) shall document the range of object diameter sizes which will produce both single and double break conditions. 1910.213 Woodworking machinery requirements. Tests which are conducted by the manufacturers of electrical components to establish stress, life, temperature and loading limits must be tests which are in compliance with the provisions of the National Electrical Code. Grinding is always performed on rim face, W dimension. 1. (ii) Safety triprod. Standard conditions shall be secured by the use of the following materials. 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. 3. Elevated clutch/brake air pressure results in longer stopping time. 1910.505Severability. The direction of the saw rotation shall be conspicuously marked on the hood. This exposure shall begin at a point not more than 65 above the horizontal plane of the wheel spindle. When a recognized validation organization has filed such a renewal request, its current recognition will not expire until a final decision has been made on the request. (ii) The motor start button shall be protected against accidental operation. (i) The control system on presses used in the PSDI mode shall meet the applicable requirements of paragraphs (b)(7), (b)(8), (b)(13), and (c)(5) of this section. (3) Shoe last and spoke lathes, doweling machines, wood heel turning machines, and other automatic wood-turning lathes of the rotating knife type shall be equipped with hoods enclosing the cutter blades completely except at the contact points while the stock is being cut. (d) Each pull-out device in use shall be visually inspected and checked for proper adjustment at the start of each operator shift, following a new die set-up, and when operators are changed. The stop control shall override any other control, and reactuation of the clutch shall require use of the operating (tripping) means which has been selected. (2) Each hand-fed circular ripsaw shall be furnished with a spreader to prevent material from squeezing the saw or being thrown back on the operator. Design Safety Standards for Electrical Systems, 1910.302 Electric utilization systems. (iii) The employer shall provide die stops or other means to prevent losing control of the die while setting or removing dies in presses which are inclined. (3) Bolster plate means the plate attached to the top of the bed of the press having drilled holes or T-slots for attaching the lower die or die shoe. Mandatory requirements for certification/validation of the PSDI safety system are provided in appendix A and appendix C to this standard. The guard shall be constructed of heavy material, preferably metal, and the bottom of the guard shall come down to within three-eighths inch of the plane formed by the bottom or working surfaces of the feed rolls. (iv) Prevents the initiation of a stroke, or stops of stroke in progress, when there is an intrusion through the sensing field by any part of the operator's body or by any other object. 1910.261 Pulp, paper, and paperboard mills. (iv) All overhead parts shall be fastened or protected in such a manner that they will not fly off or fall in event of failure. The safety guard shall cover the spindle end, nut, and flange projections. Certification/validation by similarity analysis reports should identify, in addition to the above, application of the part, component or subsystem for which certification/validation is being sought as well as data from previous usage establishing adequacy of the item. Band type guards shall conform to the following general specifications: (i) The bands shall be of steel plate or other material of equal or greater strength. (6) Trimming presses mean a class of auxiliary forging equipment which removes flash or excess metal from a forging. (12) The knife blade of jointers shall be so installed and adjusted that it does not protrude more than one-eighth inch beyond the cylindrical body of the head. Even though not employing a clutch, direct drives match the operational characteristics of part revolution clutches because the driving power may be disengaged during the stroke of the press. Cup wheels (Types 6 and 11) shall be protected by: (i) Safety guards as specified in paragraphs (b) (1) through (10) of this section; (ii) Band type guards as specified in paragraph (b)(11) of this section; and. 1910.1007 3,-Dichlorobenzidine (and its salts). 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. (5) Saw frames or tables shall be constructed with lugs cast on the frame or with an equivalent means to limit the size of the saw blade that can be mounted, so as to avoid overspeed caused by mounting a saw larger than intended. Bearings shall be kept in alignment and properly adjusted. (2) Each drum sanding machine shall have an exhaust hood, or other guard if no exhaust system is required, so arranged as to enclose the revolving drum, except for that portion of the drum above the table, if a table is used, which may be necessary and convenient for the application of the material to be finished. b. (x) Foot operated tripping controls, if used, shall be protected so as to prevent operation from falling or moving objects, or from unintended operation by accidental stepping onto the foot control. 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. and 2. for the combined position. Subpart GOccupational Health and Environmental Control. This distance (three-eighths inch) may be increased to three-fourths inch, provided the lead edge of the hood is extended to be not less than 512 inches in front of the nip point between the front roll and the work. (3) Machines using full revolution positive clutches. Suspended counterbalanced tighteners and all parts thereof shall be of substantial construction and securely fastened; the bearings shall be securely capped. Dimensions of such adaptor flanges shall never be less than indicated. 1910.137 Electrical protective equipment. 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. This appendix prescribes mandatory requirements and procedures for OSHA recognition of third-party validation organizations to validate employer and manufacturer certifications that their equipment and practices meet the requirements of the PSDI standard. 5. The failure of a critical component shall necessitate the removal of the safety system from service until it is recertified and revalidated, except recertification by the employer without revalidation is permitted when a non-critical component or subsystem is replaced by one of the same manufacture and design as the original, or determined by the third-party validation organization to be equivalent by similarity analysis, as set forth in appendix A. It shall be ascertained that the springs have not been broken and that they are functioning properly. (3) Feed rolls shall be guarded by a hood or suitable guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. The certification record shall be made available upon request to the Assistant Secretary for Occupational Safety and Health. (c) Abrasive discs (inserted nut, inserted washer and projecting stud type). Such stresses shall not so affect the control system as to cause unsafe operation. 1910.242 Hand and portable powered tools and equipment, general. 1 Note: Must be large enough to extend beyond the bushing. (iv) Air piping shall conform to the specifications of the ANSI B31.1.0-1967, Power Piping with Addenda issued before April 28, 1971, which is incorporated by reference as specified in 1910.6. OSHA may revoke its recognition of a validation organization if its program either has failed to continue to satisfy the requirements of this appendix or its letter of recognition, has not been performing the validation functions required by the PSDI standard and appendix A, or has misrepresented itself in its applications. Electrical and/or electronic cards or boards assembled with discreet components shall be considered a subsystem and shall require separate testing that the subsystems do not degrade in any of the following conditions: (1) Ambient temperature variation from 20 C to + 50 C. (42) Liftout means the mechanism also known as knockout. 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. This contact form is only for website help or website suggestions. 1910.211 Definitions. The emphasis is on an integrated total system including all elements affecting point of operation safety. (17) Two hand control device means a two hand trip that further requires concurrent pressure from both hands of the operator during a substantial part of the die-closing portion of the stroke of the press. Overhead rope drive and block and roller-chain-drive guards shall be not less than six (6) inches wider than the drive on each side. Conveyor systems shall be equipped with an audible warning signal to be sounded immediately before starting up the conveyor. The validation organization shall assign overall responsibility for the validation of PSDI certification to an Administrative Director. Compliance with 1910.217(h)(9)(x). All upsetters shall be installed so that they remain on their supporting foundations. 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. This table shows the distances that guards shall be positioned from the danger line in accordance with the required openings. This requirement pertains only to those single-stroke, two-hand controls manufactured and installed on or after August 31, 1971. On offhand grinding machines, work rests shall be used to support the work. (4) Inverted swing cutoff saws shall be provided with a hood that will cover the part of the saw that protrudes above the top of the table or above the material being cut. (3) Feed rolls of band resaws shall be protected with a suitable guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. (4) Mill roll heights. Rivet making with less than 1-inch diameter is usually a cold forging operation, and therefore not included in this subpart. (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. (2) Boring bits should be provided with a guard that will enclose all portions of the bit and chuck above the material being worked. (5) Modified types 6 and 11 wheels (terrazzo) mean some type 6 and 11 cup wheels used in the terrazzo trade having tapered K dimensions to match a special tapered flange furnished by the machine builder. 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. Lubrication of bearings is considered the single greatest deterrent to their failure. 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. (B) Guards used as supplemental safeguarding shall conform to the design, construction and application requirements of paragraph (c)(2) of this section, and shall be interlocked with the press control to prevent press PSDI operation if the guard fails, is removed, or is out of position. 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. 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. (11) The frames and all exposed, noncurrent-carrying metal parts of portable electric woodworking machinery operated at more than 90 volts to ground shall be grounded and other portable motors driving electric tools which are held in the hand while being operated shall be grounded if they operate at more than 90 volts to ground. c. The test(s) specifications and procedures shall be made available upon request to the validation organization. (Ts is defined as the sum of the kinetic energy dissipation time plus the pneumatic/magnetic/hydraulic reaction time of the clutch/brake operating mechanism(s).). Cold trimming presses shall be safeguarded in accordance with 1910.217(c). Each recognized third-party validation organization and its validating laboratories shall: 1. It is necessary to maintain clearance between the wheel side and the guard. (See Figure O-24 for one such type of mounting.). screw conveyors and the periphery of an abrasive . Nor would it be necessary to repeat these tests in the case of modifications where determined by the manufacturer and validated by the third-party validation organization to be equivalent by similarity analysis. This should enhance the reliability of the device and ensure that it remains operable. (15) Pull-out device means a mechanism attached to the operator's hands and connected to the upper die or slide of the press, that is designed, when properly adjusted, to withdraw the operator's hands as the dies close, if the operator's hands are inadvertently within the point of operation. (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. (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 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. (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. 1910.97 Nonionizing radiation. The certification/validation process includes two stages. 4. It is financially capable to conduct the work; b. 1. (1) Flywheels. Appendices to Subpart L of Part 1910Note (4) Where practicable, hand and footpower guillotine veneer cutters shall be provided with rods or plates or other satisfactory means, so arranged on the feeding side that the hands cannot reach the cutting edge of the knife while feeding or holding the stock in place. (A) The manufacturer's recommended test procedures for checking operation of the presence sensing device. All drip cups and pans shall be securely fastened. (e) As used in 1910.218, unless the context clearly requires otherwise, the following forging and hot metal terms shall have the meaning prescribed in this paragraph. Such attachments shall be securely anchored and adjusted in such a way that the operator is restrained from reaching into the point of operation. (ii) An automatic guard which will remove the hands of the operator from the danger zone at every descent of the blade, used in conjunction with one-hand starting devices which require two distinct movements of the device to start the cutting motion, and so designed as to return positively to the nonstarting position after each complete cycle of the knife. 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. Unless the distance to the nearest fixed pulley, clutch, or hanger exceeds the width of the belt used, a guide shall be provided to prevent the belt from leaving the pulley on the side where insufficient clearance exists. 1910.138 Hand protection. Where two or more knives are used in one head, they shall be properly balanced. The employer shall: (i) Use dies and operating methods designed to control or eliminate hazards to operating personnel, and. 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. 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. (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. 29 CFR 1910 Subpart O - Machinery and Machine Guarding - 1910.212 General Requirements for All Machines 29 CFR 1926 Subpart N - Helicopters, Hoists, Elevators, and Conveyors - 1926.555 Conveyors U.S. Occupational Safety and Health Administration Publication, "Safeguarding Equipment and Protecting Employees from Amputations", OSHA 3170-02R, 2007 All abrasive wheels shall be mounted between flanges which shall not be less than one-third the diameter of the wheel. (b) Each two hand trip shall meet the construction requirements of paragraph (b)(6) of this section. 1910.1024 Beryllium. (2) The opening in the table shall be kept as small as possible. Grade V60-30. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. Materials should be placed on the conveyor so that they will ride safely. 1910.1015 4-Dimethylaminoazobenzene. above floor level. (ii) In powerplants or power-development rooms, a guardrail may be used in lieu of the guard required by subdivision (i) of this subparagraph. (iii) Types 16, 17, 18, 18R, and 19 cones, plugs, and threaded hole pot balls where the work offers protection. (c) Safeguarding the point of operation -. (13) Control reliability. (2) Open framehammers (or blacksmith hammers) mean hammers used primarily for the shaping of forgings by means of impact with flat dies. (2) Where an exhaust system is used, the guards shall form part or all of the exhaust hood and shall be constructed of metal of a thickness not less than that specified in paragraph (h)(1) of this section. (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. Expanded metal, sheet or perforated metal, and wire mesh shall be securely fastened to frame. The route followed by the oiler is protected in such manner as to prevent accident. (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. Couplings. Paragraph (h)(6)(xv) of the standard requires that the control system have provisions for an inch operating means; that die-setting not be done in the PSDI mode; and that production not be done in the inch mode. 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. This subdivision does not apply to flywheels with solid web centers. (1) Each machine shall be so constructed as to be free from sensible vibration when the largest size tool is mounted and run idle at full speed. (iv) Light curtains used for PSDI operation shall have minimum object sensitivity not to exceed one and one-fourth inches (31.75 mm). (1) Machine guarding. For full revolution clutch presses with more than one engaging point, Tm shall be calculated as follows: Tm = [ 12 + (1 Number of engaging points per revolution)] time necessary to complete one revolution of the crankshaft (seconds). (1) Bite means the nip point between any two inrunning rolls. 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. Flywheels located so that any part is seven (7) feet or less above floor or platform shall be guarded in accordance with the requirements of this subparagraph: (i) With an enclosure of sheet, perforated, or expanded metal, or woven wire; (ii) With guard rails placed not less than fifteen (15) inches nor more than twenty (20) inches from rim. 1910.158 Standpipe and hose systems. (e) Trip and emergency switches. Subscribe to: Changes in Title 29 :: Subtitle B :: Chapter XVII :: Part 1910 :: Subpart O. Regulation Y It shall be the responsibility of the employer to insure the original and continuing competence of personnel caring for, inspecting, and maintaining power presses. 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. If a stairway accesses the catwalk, the width requirements depend on the width of the stairway that serves it. Table O-7 - Minimum Dimensions for Straight Flanges - for Mechanical Grinders 12,500 S.F.P.M. The upper run shall be so guarded as to prevent contact therewith either by the worker or by objects carried by him. (35) Interlocked press barrier guard means a barrier attached to the press frame and interlocked so that the press stroke cannot be started normally unless the guard itself, or its hinged or movable sections, enclose the point of operation. 1910.509Incorporation by reference. This requirement shall not apply to natural sandstone wheels or metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface. Guards for horizontal overhead rope and chain drives. ), (5) Surface grinders and cutting-off machines. Energy delivered during each stroke may be varied. All sprocket wheels and chains shall be enclosed unless they are more than seven (7) feet above the floor or platform. formatting. 1910.106 Flammable liquids. If a hearing is requested, it shall be held before an administrative law judge of the Department of Labor pursuant to the rules specified in 29 CFR part 1905, subpart C. c. The parties shall be OSHA and the recognized validation organization. learn more about the process here. (1) All projecting keys, setscrews, and other projections in revolving parts shall be removed or made flush or guarded by metal cover. 4. 3. The application shall provide information demonstrating that it and any validating laboratory utilized meet the qualifications set forth in section II of this appendix. 30, 1984; 51 FR 34561, Sept. 29, 1986; 53 FR 8353, 8358 Mar. (4) Belt sanding machines shall be provided with guards at each nip point where the sanding belt runs on to a pulley.