Source: http://arlweb.msha.gov/regs/complian/PIB/2011/pib11-31.asp
Timestamp: 2017-01-22 16:12:33
Document Index: 234338640

Matched Legal Cases: ['§ 75', 'art 7', '§ 75', '§57', '§ 801', 'art 7', 'art 75', '§ 57']

A pressure measurement device is used to measure the maximum total exhaust system backpressure. For a naturally aspirated engine, the engine is run at high idle, no load speed. For turbocharged engines, the engine is run at torque converter stall or hydrostatic transmission load. This operating procedure is the same as that established by the coal mine operator to conduct the undiluted exhaust emissions weekly test required under Title 30 Code of Federal Regulations (30 C.F.R.) Â§ 75.1914(g). For turbocharged engines that are installed in equipment that has a clutch, the engine is run at high idle, no load speed. The test is run until the total exhaust backpressure reading is reasonably stable.
Diesel engine manufacturers specify a maximum total exhaust system backpressure limit in their specifications for each engine model. Monitoring the exhaust backpressure will ensure that the exhaust system has not been compromised by a clogged dpm filter, catalytic converter, or any other device that is installed. MSHA's standards found in 30 C.F.R. Part 7 Subpart E, 30 C.F.R. Â§ 75.1914, and 30 C.F.R. Â§57.5066 require that diesel engines be maintained in approved condition or to manufacturer's specifications. This test procedure is used to determine compliance with these requirements.
The Federal Mine Safety and Health Act of 1977, as amended, 30 U.S.C. Â§ 801 et seq.; 30 C.F.R. part 7 subpart E, 30 C.F.R. part 75 subpart T, and 30 C.F.R. Â§ 57. 5066.