Page 53 - Machinery Component Maintenance

38 Machinery Component Maintenance and Repair

Process plants subscribing to this approach define, in specific outline
form, the responsibilities of supervisory and staff personnel involved in
turnaround (T/A) of major machinery. The outline explains the various
job functions involved in T/A activities and identifies the timing and
scheduling requirements which precede the actual shutdown.
The assignment of qualified personnel starts with the designation of an
overall T/A coordinator no later than nine months before the scheduled
shutdown. As of this time, the plant's senior machinery specialist is re-
quired to maintain formal communications with the T/A coordinator.
Among other duties, the T/A coordinator screens and approves the
planning and scheduling efforts of maintenance or contractor personnel
involved in major machinery T/A's after the senior machinery specialist
has had an opportunity to review these efforts. Working hours and team
composition are to be determined jointly by the T/A coordinator and se-
nior machinery specialist.
Experience shows that a spare parts and materials coordinator should
also be designated no later than nine months before scheduled shutdown.
This person will generally be responsible for implementing spare parts
procurement requested by the senior machinery specialist and mechani-
cal supervisors. He will be required to forward up-to-date listings of
parts on hand to personnel requiring this information.
The plant senior machinery specialist is generally charged with re-
sponsibility and authority to direct planning and execution of the machin-
ery portion of the T/A. His background and experience should make him
uniquely qualified for this job, and as senior resident expert he would be
thoroughly familiar with all machinery affected by the planned T/A.
A key job function is to be fulfilled by turbotrain T/A engineers. On
major machinery T/As it was found essential to have one or more of
these engineers assigned the responsibility of verifying the quality of exe-
cution of all machinery overhaul tasks. If a given plant does not have
enough machinery engineers to man the job around the clock, affiliate
loan or contractor engineering personnel should be brought in for the du-
ration. The specific responsibilities of turbotrain T/A engineers have
been described as those of a machinery advisor and quality control per-
son who augments the mechanical supervisor and reports to the senior
machinery specialist for work direction and guidance. His responsibility
and authority extends from machine inlet nozzle to machine outlet nozzle
and includes lube and seal oil systems. His work begins after all required
blinds have been installed and ends after every item of machinery work is
complctc. Hc will then turn ovcr thc machincry to thc mcchanical supcr-
visor for removal of blinds.