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INDUSTRIAL RELATIONS BULLETIN
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,, S/22/83
Industrial Hygiene
Employ* Haalth Servioeo | 4a
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Asbestos Brake ud dutch Servicing --
(Supplement to Bulletin Do. 4)
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The following procedure* are re comaeoded to minimise asbestos dust exposures during braks ud clutch servicing of truck*, tractors, trailers, automobiles, locomotiveo,
forklifts, ud tow tugs. Strict adherence to these procedures will sUsduete exposures of mechanics to asbestos during brake ud clutch servicing.
1. is area should be designated for all brake aad dutch repairs. Tbs nerval so.istesauce ares for tug tractors ud forklift trucks could aerie as the da sign*tad area for these plant vehicles. Entruees into this area shall he posted during brake ud clutch servicing with sn asbestos exposure warning sign*
ASBESTOS Dust Becard Avoid Breathing Dust Vear Aasigoed Protective Equipment Do Bet Remain in Area Unless Tour Verk Requires It Breathing Asbestos Dust >hy Cause Ashe steals and Cucer
2. Only esseutial personnel should be present in the immediate aaiatenuoe area during brake and elutch servicing.
3. During brake se-rieing, u air purifying respirator, either single-use or with replaceable particulate filter(e), as approved by Industrial Syrian* and Mining Enforcesent and Safety Administration (formerly Bureau of Mines) or HIOSH, shall
be worn during all procedures starting with removal of wheel end. including reaaeembly. During manual clutch servicing, such e respirator shall be worn during removal ud cleaning of clutch, pressure plate, ud housing assembly,
and during installation of new clutch assembly.
4. Dust shall first be cleaned from brake drums, brake backing plates, brake assemblies end elutch assemblies using u industrial type vacuum cleaner equipped
with a high efficiency filter system (P'99* efficiency for 0.3diameter aerosols). After vacuum cleaning, any remaining dust shall be removed using a rag soaked in water and wrung until nearly dry. Dnder no circumstances shall cowarcaaed sir or dry brushing be used for- planning^ (See industrial Hygiene Bullatj^JHo. 4
for approved vacuum cleaners.)
During arcing ud riveting operations, u approved respirator, as described in (3) above, shell be worn. Grinding (arcing) machines shall be provided with local exhaust ventilation such that exposures are maintained below the OSSA asbestos standard. (29 CFR 1910.1001). At a minimum, dust bag of the arcing machine shall b* removed and replaced with hose of high efficiency industrial
vacuum described in (4) above.
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6. During removal of vaouua bags, u approved respirator, as described in (3) above, c
shall be wen. Industrial vacuum cleaner bags containing asbestos dust, cloths ^
used for wiping brake and clutoh assemblies, ud other asbastos-eentaainatsd
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debris shall ba sealed in plaatie bags end labeled with following warning Jabel "
printed in Isttera of sufficient else end contrast to be readily visible end
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CAOTXQH Contains Asbestos Fibers
Avoid Breathing Dust ..
Breathing Asbestos Dust May Cause Asbestos!* ud Caneer
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011579
FORD MOTOR COMPANY
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