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ISSUE DATE: July 22, 2009 PROGRAM INFORMATION BULLETIN NO. P09-16 FROM: KEVIN G. STRICKLIN Charles Thomas for Administrator for Coal Mine Safety and Health LINDA F. ZEILER  Acting Director of Technical Support SUBJECT: Re-Issue of P97-20 - Gaseous Dilution Air Quantity and Particulate Index for the Caterpillar 3306 PCNA Diesel Engine Scope This program information bulletin (PIB) applies to manufacturers of underground coal mining equipment, underground coal mine operators, and Coal Mine Safety and Health (CMS&H) enforcement personnel. Purpose This PIB informs the mining community that a gaseous dilution air quantity and a particulate index have been calculated in accordance with Title 30, Code of Federal Regulations (30 C.F.R.), Part 7, Subpart E, for the Caterpillar 3306 PCNA diesel engine. This engine is currently installed in some permissible equipment approved under 30 CFR Part 36 in use in underground coal mines. This information is made available to assist coal mine operators who use diesel-powered equipment in complying with the ventilation requirements of Section 75.325(f) and (g). Information The preamble to the final rule under 30 C.F.R. Parts 7, 31, 32, 36, 70, and 75, Approval, Exhaust Gas Monitoring, and Safety Requirements for the Use of Diesel-Powered Equipment in Underground Coal Mines, states that four diesel engine models are installed in the majority of Part 36 approved permissible equipment used in underground coal mines. Laboratory tests are being conducted to determine a gaseous dilution air quantity and a particulate index for these four engines. This PIB provides this information for the Caterpillar 3306 PCNA diesel engine. An additional PIB will be published to provide similar information for an Isuzu diesel engine. Test of the Caterpillar 3306 PCNA diesel engine were conducted at the University of Minnesota, Center for Diesel Research (CDR) using the laboratory test procedures specified in Subpart E of Part 7 for a Category A type engine. The gaseous and particulate emissions were measured and the results reported by CDR to MSHA. Table 1 lists the gaseous dilution air quantity and particulate index for the Caterpillar 3306 PCNA as determined in accordance with the technical requirements in Part 7, Subpart E, Section 7.84(c) and (e). Table 1 - Caterpillar 3306 PCNA Diesel Engine
MSHA is working with manufacturers to develop procedures by which new approval plates bearing the gaseous dilution air quantity specified in table 1 will be made available to owners of Part 36 equipment currently in use in underground coal mines. Coal mine operators should utilize the dilution air quantity specified in Table 1 to develop ventilation plans that comply with the requirements of Section 75.325(f) and (g) which become effective on November 25, 1997. Background MSHA published a final rule under 30 C.F.R. Parts 7, 31, 32, 36, 70, and 75, Approval, Exhaust Gas Monitoring, and safety Requirements for the Use of Diesel-Powered Equipment in Underground Coal Mines, on October 25, 1996. Section 75.1907(b)(4) requires that as of November 25, 1997, a particulate index and dilution air quantity for the gaseous emissions be determined for the Part 36 permissible equipment in accordance with Subpart E of Part 7. The gaseous dilution air quantity shall be inscribed on the machine approval plate and used in accordance with Section 75.325(f) and (g). The new engine approval requirements establish test procedures for determining the gaseous and particulate emissions. Using this data, a ventilating air requirement and a particulate index are determined. The ventilating air requirement computed under the new regulation differs from the ventilating air requirement currently on the approval plate. The revised ventilating air requirement is intended to be used by mine operators to comply with the ventilation regulations for diesel-powered equipment which are effective on November 25, 1997. Authority 30 C.F.R., Section 75.1907(b)(4) and 75.325(f) and (g). Issuing Office and Contact Person Technical Support, Approval and Certification Center Jeffrey S. Moninger, (304) 547-2324 E-mail: moninger.jeffrey@dol.gov Coal Mine Safety and Health, Safety Division John Arrington, (202) 693-9549 E-mail: arrington.john@dol.gov Distribution MSHA Coal and All-Volume Program Policy Manual Holders Underground Coal Mine Operators Coal Independent Contractors Mining Product Manufacturers Coal Special Interest Groups  |
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