8. SCHEDULED DOWNTIME LOSS

These are time losses occurred when equipment is stopped for planned maintenance, as well as volume losses that occur due to equipment start-up. These are an unavoidable aspect of the equipment, so they occur based on the quality, safety, and reliability maintenance requirements of the equipment, although there are some differences in time requirements

The following problems are generally noted with respect to shutdowns:
• Past work patterns are followed without improvement.
Partially unnecessary work is carried out
. Parts are replaced before their service life has ended
. Work methods and standards are not sufficiently established.
• The critical path (work to regulate overall time) is unclear.
• There is no logical base for cycle-setting.
• Improvement work for cycle extension is insufficient.
• Study of time reduction is not implemented

Solving these problems, one by one, will lead to the reduction of shutdown time and cycle-time extension.
• This is equipment –related loss, wherein the equipment is “scheduled” to be kept under downtime due to certain permitted reasons.
• This loss is sub classified as follows.
• JH activity time
• PM activity time
• Meetings
• Development time
• Not scheduled at all

Mostly this loss will affect only OPE.