Inspection of machines; minimum requirements.

§ 18.97 Inspection of machines; minimum requirements. (a) Except as provided in § 18.95, all machines approved under the provisions of this subpart E shall, where practicable, meet the minimum design and performance requirements set forth in subpart B of this part 18 and, where necessary, the requirements of § 18.98. (b) The inspection of each machine shall be conducted by an electrical representative and such inspection shall include: (1) Examination of all electrical components for materials, workmanship, design, and construction; (2) Examination of all components of the machine which have been approved or certified under Bureau of Mines Schedule 2D, 2E, 2F, or 2G to determine whether such components have been maintained in permissible conditions; (3) Comparison of the location of components on the machine with the drawings or photographs submitted to determine that each of them is properly located, identified and marked; (4) Pressure testing of explosion-proof compartments, when necessary, shall be conducted in accordance with § 18.98; and: (i) Where the results of pressure testing are acceptable, the applicant shall be advised; (ii) Where the explosion-proof enclosure is found unacceptable, the applicant shall be so informed; (iii) If the performance of the explosion-proof enclosure is questionable, the qualified electrical representative may, at the request of the applicant, conduct a further detailed examination of the enclosure after disassembly and record his additional findings on MSHA Form No. 6–1481 under Results of Field Inspections. [33 FR 4660, Mar. 19, 1968, as amended at 42 FR 8373, Feb. 10, 1977]