(A)
At intervals not to exceed one hundred hours of engine
operation, or at intervals specified and approved by the chief, a mechanic
qualified in accordance with rule 1501:10-2-24 of the Administrative Code shall perform the following maintenance on all diesel-powered equipment and make all necessary adjustments and repairs to meet the manufacturer's specifications and the requirements of this chapter, or
remove the equipment from service:
(1)
Wash or steam-clean the equipment;
(2)
Check for and
remove any accumulations of coal, coal dust or other combustible
materials;
(3)
Check the equipment for damaged or missing components
or other visible defects;
(4)
Conduct
electrical and safety component inspections;
(5)
Replace engine
oil and filter at the standard one hundred hour interval unless an extended
interval is approved by the chief in accordance with paragraph (B) of this
rule;
(6)
Check the transmission oil level and add oil, if
necessary;
(7)
Check hydraulic oil level and add oil, if
necessary;
(8)
Check the engine coolant level and add coolant, if
necessary;
(9)
Check all other fluid levels and add fluid, if
necessary;
(10)
Check for oil, coolant and other fluid leaks;
(11)
Inspect the cooling fan, radiator and shroud. Remove any obstructions and make
necessary repairs;
(12)
Check all belts. Tighten or replace, if
necessary;
(13)
Check the battery and service as necessary;
(14)
Check the automatic fire suppression system;
(15)
Check the
portable fire extinguisher;
(16)
Check the
lights;
(17)
Check the warning devices;
(18)
With the engine
operating, check, and replace or repair as necessary, the following:
(a)
Oil
pressure;
(b)
Intake air restriction at full engine speed;
(c)
Exhaust gas restriction at full engine speed;
(d)
Exhaust flame
arrestor; and
(e)
All gauges and controls;
(19)
Conduct
repeatable loaded engine-operating test in accordance with rule 1501:10-2-21 of the Administrative Code;
(20)
If the equipment is approved with a non-disposable
diesel particulate filter, a smoke dot test of the filtered exhaust must be
performed at this time. The results of the smoke dot test shall be recorded on
the one hundred hour emissions form. If the interpreted smoke dot number is
greater than three, but less than four, the operator shall immediately, in
writing, notify the chief. The chief may request the technical advisory
committee, in accordance with rule 1501:10-2-27 of the Administrative Code, to conduct an investigation to determine if the filter is functioning properly;
(21)
Evaluate and interpret the results of all of the above
tests and examinations, and make all necessary adjustments and repairs or
remove the equipment from service; and
(22)
Comply with
record-keeping requirements of rule 1501:10-2-17 of the Administrative Code.
(B)
Extended
interval for replacement of engine oil and filter.
(1)
If a mine
operator wants to replace engine oil and filter at an interval greater than the
standard one hundred hour interval, the operator shall:
(a)
Have an
appropriate independent third party conduct tests to provide empirical evidence
that replacing engine oil and filter at a specified interval of greater than
one hundred hours poses no increased health hazard to underground miners;
(b)
Obtain approval of the results of such tests from the equipment manufacturer
for equipment to be used in an underground mine; and
(c)
Submit to the
chief a request for a specified extended interval for replacement of engine oil
and filter, including the test data and manufacturer approval of paragraphs
(B)(1)(a) and (B)(1)(b) of this rule.
(2)
The chief may
request the technical advisory committee, in accordance with rule 1501:10-2-27 of the Administrative Code, to evaluate the results of the tests conducted pursuant to paragraph (B)(1)(a) of this rule and to review and make a recommendation regarding the extended interval. After review of the information submitted under paragraph (B) of this rule, the chief may approve, in writing, a specified extended interval for replacing engine oil and filter.
(3)
The
mine operator shall keep a copy of the approval letter for the specified
extended interval for replacing engine oil and filter with the maintenance
records for the piece of equipment for which the extended interval was granted
for the duration of equipment use, and shall make the approval letter available
to the chief or his or her representative, miners of the mine, and other
interested parties upon request.