Page 34 - Machinery Component Maintenance

Muintenance Organization and Control for Multi-Plant Corporutions I9

formance history. Some systems also support repairheplace decisions by
maintenance or engineering department as well as equipment selection
decisions. Equipment interchangeability information, and reports on
equipment spare parts, are also available from some systems. The pre-
ventive maintenance/equipment records systems is also called the “relia-
bility maintenance system” by some companies and plants.
Work order costing systems are vital for analysis and control of plant
maintenance costs. These systems provide a framework for the capture of
cost-related information and processing capability for analyzing such in-
formation and producing reports required by cost-conscious maintenance
management.
Work order cost systems accumulate costs by work order. Usually,
cost-related data from time sheets, contractors’ invoices, journal vouch-
ers, and spare parts inventory are compiled by the system and analyzed
to produce:

1. Detailed and summary listings of costs, by work order.
2. Detailed listings of all current month cost transactions for each
work order.
3. Reports which list, for each work order, costs incurred for the cur-
rent month as well as during the life of the work order.

Using these and other reports, maintenance managcment can compare
actual costs against estimates or budgets and can pinpoint costs which are
outside policy guidelines or rising at a rate faster than anticipated.
The work order cost system also may be designed to provide input for
other systems. It can generate equipment cost transactions for a preven-
tive maintenancekquipment records system, for example, or can provide
summarized accounting entries for a general ledger system.
In summary, work order cost systems provide cost information in a
form that is fully usable by maintenance management in identification
and definition of cost-related problems within the maintenance function.
With this information, control efforts may be concentrated on areas
where potential savings exist.
The fixed equipment inspection system adds consistency, comprehen-
sion, and effectiveness to a plant’s inspection program. It is designed to
support the plant inspection department and is structured around a data
base of information on equipment critical to a plant’s operation, such as
piping, pressure vessels, heat exchangers, and furnaces. Fixed equip-
ment may be designated as critical because of its potential for creating
safety hazards, its position within the processing train or because of laws
or codes governing equipment inspection in certain cases.