Scheduling

DOE-STD-1050-93

use of job history for establishing standard job durations, parts, and

consumables for repetitive jobs

3.1.2 Scheduling

Scheduling of corrective and preventive maintenance and of planned and forced outage

work is necessary to ensure that maintenance is conducted efficiently and within

prescribed time limits. Scheduling daily activities based on accurate planning estimates

should improve the use of time on the job and help reduce hazardous exposure.

Scheduling of planned outages is important to support the return of the facility to

service on schedule (and within the approved budget) and results in improved

availability and capacity factors. A contingency schedule should be maintained so that

if a forced outage occurs, the forced outage time is minimized and effectively used and

so that all needed maintenance is performed prior to restart.

An effective schedule should assist management in controlling and directing

maintenance activities and should enhance the ability to assess progress. The schedule

should reflect the long-range plan and day-to-day activities. Effective scheduling should

enhance the efficient use of resources significantly by decreasing duplication of support

work, decreasing craftspersons idle time and ensuring completion of planned tasks. The

schedule should be the road map for reaching plant maintenance goals.

Scheduling is an integral part of the overall preparation for maintenance activities and

should be performed concurrently with the planning activities covered in this guideline.

The integrated schedule should be based upon such details as work scope, importance

to plant goals, prerequisites and interrelations, resources, and constraints, developed

during the planning process.

A properly prepared and updated integrated schedule should be a tool to assist in

managing maintenance activities. Performance deteriorates if a schedule is not available

to identify and properly sequence maintenance tasks. Sufficient detail should be

included to coordinate activities and track progress. By grouping individual work items

and integrating major tasks, more efficient use of support resources should be achieved.

The integrated schedule should form the basis for progress reporting. The schedule

should remain useful if it is updated frequently based on the progress reports.