Page 60 - Machinery Component Maintenance

Maintenance Organization and Control for Multi-Plant Corporations 45

Thc mechanical supervisors instruct the spare parts coordinator to
assemble up-to-date tabulation of spare parts presently on hand for
major machinery trains. After review, they forward the tabulation to
the senior machinery specialist.

Eight Months Before T/A:
The spare parts coordinator and maintenance personnel receive the
senior machinery specialist’s request to:
I. Place a “hold” on selected parts
2. Order additional spare parts
In response, they issue purchase orders for additional replacement
parts.
Next, maintenance supervisors commence dimensional checking of
selected (existing) spare parts per request made by the senior ma-
chinery specialist. The results should be documented within eight
days.
Dimensional checking has frequently shown serious discrepancies in
parts designation, dimensional configurations, and tolerances. These
must be identified early if a smooth turnaround is to result.
Six Months Before T/A:
Maintenance personnel arrange for vendor assistance.
Maintenance personnel also work up a more definitive work zone ar-
rangement and commence tabulation of detailed work list for each
zone.
Maintenance or technical department personnel witness check bal-
ancing of major turbomachinery rotors.
Assemble tools and identify missing tools.
Arrange for scaffolding, etc.
Forward data to senior machinery specialist regarding status of spare
parts ordered six months earlier.
The planner should now provide final work zone arrangement and
detailed work list for each.

One month before T/A, maintenance planners or mechanical supervisors
provide bar chart diagrams for machinery-related T/A work.
They participate in a meeting with the senior machinery specialist
and designated turbotrain T/A engineers.

One week before T/A, mechanical supervisors commence meeting
with designated turbotrain T/A engineers for briefings on matters relat-
ing to machinery work.