Lost time is the time an operator loses which is outside of his/her control. This time will affect the efficiency of an operator unless it is taken into consideration.
Categories of lost time are:
· Waiting for work
· Machine trouble
· Doing the other person's repairs
· Doing samples
· Power failures
· Meetings etc.
Since the above points cannot be controlled by the operator, the time spent is subtracted from the attended minutes of the operator when calculating the daily efficiency.
For example:
If no lost time occurred operator efficiency is calculated as,
If, however the operator had
waited for work for = 30 min
Done sample for = 40 min
Machine trouble for = 30 min
Total = 100 min
The calculation would now be worked as
| LOST TIME REPORT ** FORMAT | ||||||||||||
| Name |
| Clock No. |
| Week Ending |
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| A) Machine B/Down | B) No Supply | C)No Cut Work | D) INSTR/ Supervisor | |||||||||
| E) Repairs | F) Samples | G) Cutting Room fault | H) Trimming Supply | |||||||||
| I) Others |
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| ON | OFF | Code/ Total | ON | OFF | Code/ Total | ON | OFF | Code/ Total | ON | OFF | Code/ Total |
| Monday |
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| Tuesday |
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| Wednesday |
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| Thursday |
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| Friday |
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| Saturday |
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The lost time is calculated to find out the exact efficiency obtained to the operator.
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