Document 6RN3qQ7G7gQjOZ6K92L5rNGQm

FILE NAME: International Harvester (INTH) DATE: 1981 Mar31 DOC#: INTH047 DOCUMENT DESCRIPTION: Revised Industry Recommended Practices SUPERVISOR PLANT PROTECTION & SAFETY MELROSE PARK PLANT Marcii 31, 1981 Supervisors, Plant Protection & Safety Safety Supervisors Revised Procedure for Repair and Replacement of Pipe Coverings or Insulation Containing Asbestos Most plants, at one time or another, experience maintenance problems requiring the removal of asbestos insulation from old steam lines or boilers. Attached is a revised standard operating procedure that must be followed when this kind of work is done. One of the requirements in this procedure is that a vacuum cleaner approved for asbestos be used in cleanup work. A vacuum cleaner with a filter system designed for capturing asbestos fibers is available through the i h Dealer Service Tool Program. It is shown in the IH "Serv-EqUip" catalog as "Brake and Clutch. Service Vacuum" number SE-2904. A fact sheet describing this equipment is attached, and addi tional details can be obtained from any Truck Sales Regional Office. Also attached is information on procedures for reducing exposures to asbestos dust during brake servicing and a fall prevention system. These are items of general informa-* tion and may be of interest to you. * Industrial Hygiene Manager ja Attachments cc : Mr. R. F. Moscato Mr. W. E. Nichols EMPLOYE ENVIRONMENTAL HEALTH AND SAEETY / CHICAGO, ILLINOIS SUPERVISOR, PLANT PROTECTION .& SAFETY MELROSE PARK PLANT .. 'i J 1. ' Because studies have indicated that exposure to excessive amounts of asbestos dust may be a potential health hazard, OSHA has set maximum limits of- levels of air borne asbestos dust to which workers may be ` materials normally contain a sizable amount who handle brake linings and clutch facings know the precautions to be taken " , exposed. Since most automotive friction o'f asbestos, it is important that people understand th nature of the problem and # * 2, Areas where brake work'is done should be set.aside if possible, and entrances should be posted with an asbestos exposure sign as follows: * ASBESTOS DUST HAZARD AVOID BREATHING DUST WEAR ASSIGNED PROTECTIVE EQUIPMENT DO NOT REMAIN IN AREA UNLESS YOUR WORK REQUIRES IT BREATHING ASBESTOS DUST MAY.BE HAZARDOUS TO YOUR HEALTH The amount of asbestos in the dust from brake lining wear Is normally at an ex tremely low level because of chemical breakdown during use, and if machining of friction material does not take place, simple procedures will minimize exposure. During brake servicing, the mechanic should wear an air purifying respirator, either a throwaway or one with replaceable particulate filter(s), as approved by the raining Enforcement and Safety Administration or NIOSH. It should be worn during all procedures starting with the removal of the wheels and including reassembly. 3, During disassembly, all parts should be carefully placed on the floor to mini mize the possibility of creating airborne dust. Dust should first be cleaned from the brake drums, brake backing plates and brake assemblies using an industrial type vacuum cleaner equipped with a high efficiency filter system. After vacuum cleaning, any re maining dust should be removed by using a rag soaked in water- and wrung until nearly dry. Under no circumstances should compressed air or dry brushing be used for cleaning, . A. Of extreme importance are th precautions which must be taken during machining of friction material. This Is the operation in brake servicing when exposure to asbestos dust is at its highest. In addition to the approved respirator,.there must be local exhaust ventilation such that the worker exposures are maintaind at least below th 1976 0SH asbestos standards. If there is any question as to the efficiency of asbestos dust removal by the machine, the manufacturer should be contacted. (Over)  * 2 - 5. industrial vacuum cleaner bags containing asbestos dust and cloths used for wiping brake assemblies should be sealed in plastic bags and labeled with the folio, ing warning label printed in letters of sufficient size and contrast to be readily visible and legible: " CAUTION CONTAINS ASBESTOS FIBERS AVOID BREATHING DUST BREATHING ASBESTOS DUST MAT CAUSE SERIOUS BODILY HARM , t . " All asbestos waste should.be disposed of in accordance with the OSHA asbestos regulation. During removal of Vacuum bags, an approved respirator, as described in (2) on the previous page should be worn. 6. A H floor cleaning in areas where brakes are repaired should be done with the high efficiency industrial vacuum cleaner as described in (3) on the previous page. Under no circumstances should dry sweeping take place,. Grinding (arcing) .machines should also be cleaned with such a'Vacuum cleaner, and any remaining dust wiped with a damp cloth. An approved respirator, as described previously should be used during this cleaning. , ' - 7. Although adherence to the above procedures should minimize any contamination of work clothing., it is necessary that the appropriate sections of the OSHA regula tions on asbestos be followed when ceiling levels"on asbestos dust exceed current standards. This could involve special clothing, change rooms, etc. At the very least the work clothes should not be taken home but should remain at work for in dustrial laundering. ' 8. Proper hygiene practices will help minimize exposure to asbestos dust. Wash thoroughly before eating .and do not eat in the work area. Remember, smoking Is harmful to the health, and smoking eoupied with breathing asbestos dust is extremely dangerous, CAUTION: DO NOT BREATHE ASBESTOS DUST Rephintid and Vit/Ubute-d by the Automotive. SeAvicc inda&tAy AiiotUation Couhtuy oi the Vaictlon UateAiaii, Standard* In&tipite., Inc. Department of Health, Education & Welfare .R E C O M M E N D E D (INTERIM) P R O C E D U R E S F O R ASBESTOS B R A K E A N D C L U T C H SERVICING T h e National Institute for Occupational Safety and Health (NIOSH) has research u n d e r w a y concerning dust exposures during brake-and clutch servicing. D u e to preliminary data demonstrating .significant asbestos exposures during presently used brake and clutch servicing- techniques, NIOSH-ba.s reviewed alternate techniques w h e r e b y asbestos exposures are reduced. T h e following are interim procedures r e c o m m e n d e d b y N I O S H to m i n i m i z e dust exposures. 1. If possible, an area shall b e designated for all brake and clutch repairs. Entrances into tins area shall he posted with an asbestos exposure warning sign as follows: . Asbestos : Dust Hazard Avoid Breathing Dust . W e a r Assigned Protective Equipment D o N o t R e m a i n in A r e a Unless Y o u r W o r k Requires It Breathing Asbestos Dust M a y Cause Asbestosis and Cancer 2. During bra.ke servicing, an air purifying respirator, either single use or with replaceable particulate filter(s), as approved b y the M i n i n g E n f o r c e m e n t and Safety Administration (formerly B u r e a u of Mines} or N I O S H , shall be w o r n during all procedures starting with the r e m o v a l of the whee l s and includin reassembly. During m a n u a l clutch servicing,, such a respirator shall be w o r n during removal and cleaning of the clutch, pressure plate and housing a s s e m bly and during installation of the n e w clutch assembly. * f 3. Dust'shall first be cleaned f r o m brake drums, brake backing plates, brake "assemblies and clutch assemblies using an industrial type v a c u u m cleaner . equipped with a high efficiency filter s ys t e m (99% efficiency for 0 . 3 . u m diameter aerosols). After v a c u u m cleaning, any remaining dust shall be r e m o v e d using a rag soaked in water and w r u n g until nearly dry. U n d e r no circumstances shall c o m p r e s s e d air or dry brushing be used for cleaning. W t ; 4. During arcing and reveting operations, an approved respirator, as described in (2) above, shall be worn. Grinding (arcing) m a c h i n e s shall be provided with local exhause ventilation such that w o r k e r exposures are maintained at least below the 1976 O S H A asbestos-standard (29 C F R 1910. 1001).* At a m i n i m u m , the d u s t b a g of the arcing m a c h i n e shall be r e m o v e d the replaced with the hose of the high efficiency industrial v a c u u m described in (3) above.  z * 5. Industrial v a c u u m cleaner bags containing asbestos dust and cloths used for wiping brake and clutch assemblies shall be sealed in plastic bags and labeled with the following warning label printed in letters,of sufficient size and contrast to be readily visible and legible. Caution ' Contains Asbestos Fibers , Avoid Breathing Bust Breathing Asbestos Dust M a y C a u s e Asbestosis -and C a n o e r All asbestos waste shall be disposed of in accordance with the O S B A asbestos regulation, 29 C F R 1910.1001(h). During r e m o v a l of v a c u u m bags, an approved respirator, as described in (2) above, shall b e worn. 6. All floor cleaning in areas w h e r e brak e s and clutches are repaired shall . be done with the high efficiency industrial' v a c u u m cleaner as described in (3) above. Grinding (arcing) machines shall also be cleaned with such a v a c u u m cleaner and any remaining dust wiped with a d a m p cloth. A n approved respirator, a& described in (2) abpve, shall be Used during this cleaning, 7. Although adherence to the above procedures should m i n i m i z e a n y c o n t a m ination of w o r k clothing, it is required that the appropriate portions of the O S H A regulations on asbestos (29 C F R 1910. 1001(d) (3 and 4)) co n cerning special clothing, change rooms, etc. be followed. N O T E : Strict adherence to the above procedures should m i n i m i z e exposures to m e c hanics during brake and d u t c h servicing. T h ese are interim r e c o m mendations and are subject to revision pending results of ongoing N I O S H r e search. 1 * Section 1910, 1001 of the C o d e of Federal Regulations w a s f o r m e r l y Section 1910. 93a, This change w a s noted in the Federal Register, M a y 28, 1975. Prepared B y s Division of Field Studies and Clinical Investigations jj National Institute for'Occupational Safety and Health 5 Cincinnati, Ohio * Reproduced in its Entirety B y T e m p o Products C o m p a n y January 1976 REPRESENTED BY POTTER-WEIL COMPANY M 1 4 W F1FTCHFP . C H IC A C O HI Af)*1P m ofa SJW '"