5.20 - Visual Controls
Patterns and images help us to take in information quickly. Changes in visual presentation are also more easily detected - our eyes and brains work on exception management.
Visual controls harness the power of images to help control events in manufacturing.
With visual controls, every time we look we can quickly see what is different - what’s right and what’s wrong:-
- What’s right - we can ignore
- What’s wrong - we can put right
Kanban Gives Visual Control
This is a visual indication of a production problem at the lathe -
Empty Kanbans! |
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SPC charts Give Visual Control
Standard Working Procedures Give Visual Control
- At the work station to supervision
- Assisting operators in maintaining levels of performance
- Aiding flexibility within cells
- Providing a clear basis from which improvement can be made to the manufacturing system
Maintenance Charts Give Visual Control
Place the charts on or near the machine
Week 
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Oil Shaft |
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X |
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Clean |
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X |
X |
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Change Oil |
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X |
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X |
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X |
Change Filter |
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X |
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Grease |
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X |
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If the Andon is flashing the machine has broken down.
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Cell Performance Monitors Visually Displayed
- Aids motivation
- Aids communication
For Example:-
- Percent achievement of planned mixed output
- Stock Turns
- Lead time
- Quality
- Product Costs
- Absenteeism
- Output per employee
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