Document MG3q5gk45Y8J82eBkLMd9E5Ex

FILE NAME: Caterpillar (CAT) DATE: 1959 Apr 6 DOC#: CAT022 DOCUMENT DESCRIPTION: Memo - Exhaust Ventilated Equipment April 6, 1959 Fopria C. Harker, **toe. Kngr. Mfg. REI EXHAU37 VENTIIATSI? EQUIIMFST The following Items indicate a need of further action above and beyond the usual maintenance core nos provided! Drabs Band Line, LL-21-3 3everal years ago two new "Torrit" dust collectors (n-13639 & u-13738) vers Installed to oollect asbestos dust from brake baud linings. This is considered a toxic dust, and needs an offlolent type of oolleotor. Recent 1$- a drop in effeotive exhaust totes bos bssn not load. This is due to inadequate cleaning ofthe filtore lamenta sithin the collectors Only shaking by use of tbs shaksr handle is being dons st tbs start of each snlft by the operators. This type of filter oleanlng is Inadequate due to the asbestos dust oolleoted. weekly brushing and vacuum oleaning of the filter elements is necessary In order to remove the cake of dust nos adhering to the surface it la the writer's opinion that this job Is not part of the operator's duty on the line. Fuel Tank Line. LL-I1-0 The Faint Booth at this location has inadequate exhaust rates at the present openings. This is not a new condition, but has been getting wore during the past year. Long exhaust duets are part of tbs cause of this condition. It is understood that the regular maintenance care of this booth Is adequate, but still nothing oan be done to increase exhaust rates. The following action is suggested at this timet 1. decrease the present openings around tba booth some to & make more effective use of existing exhaust. < 2. Xnoreaae the exhaust ventilation rate eo ss to re* cuva acre air from the booth. However, this will carry out more water Into the ducts, unless proper eliminators are installed. 3. Redesign the paint booth to take care of the large tanks now being painted. 'Z L .'r (=tc.e~ cc* Ft. Henry T I. -. Ful1 la e.r ^ Wm. R. Retser Industrial Hygienist HAT-1 niRQRR