5s the way
DESCRIPTION
This book explains about the techniques of 5STRANSCRIPT
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What is 5S?
Warehouse
Boss, Look at my
Master piece ?
! ? # @ & *
$ % !
5S is not to produce aesthetic effects to impress others
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A medicine, easy to take and can cure most problems effectively. It
has no expired date and no side effects
5S - An effective cure to problems
A company is just like human body.
It has to be maintained to its best condition!
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5S in Engineering
To eliminate the wastes that result from “uncontrolled” processes.
To gain control on equipment, material & inventory placement and position.
Apply Control Techniques to Eliminate Erosion of Improvements.
Standardize Improvements for Maintenance of Critical Process parameters.
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Productivity
OutputProductivity = -----------
Input
Productivity can be improved in two ways
For the given output reduce input
Increase output for the given input
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Why productivity ?
To achieve the maximum output from the given input in order to increase
the profitability and to reduce the manufacturing cost
Why low productivity ?
Target
Actual
Gap Wastes
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Value add work vs Non-value add work
All work is either
Value Add
Transforms material or information to meet
the true desires of an external customer
Non-Value Add
Any activity that does not change the state of product / information
to meet the customer requirement
Control
Information
Administration
Other
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Which of these activities add value?
Looking for parts
Building products
Inspecting
Testing
Rework
Delivering services
Packaging
Shipping
Searching for info
Filling out forms
Entering data
Answering customer questions
Stocking shelves
Training
Selling
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Low Hanging fruit
Where do you think you will
find the “low hanging fruit”
when you begin your
improvement efforts?
By increasing the 5% of value-
add activities?
By reducing the 95% of non-
value-add activities
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Fundamental principle of process improvement
Anything that does not add
value is waste, and must be
reduced or eliminated
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In lean manufacturing waste is anything that adds to the time and cost of
making a product
but does not add value to the product from the customer’s point of view.
Value-added activities transform the product into something the customer
wants. In manufacturing this is generally a physical transformation of the
product to make it to conform to customer expectations.
Figure shows a simplified version of the steps required to make a steel
subassembly..
Delivery
Buffer Buffer Buffer Buffer Buffer BufferStock yard
Blast & PrimeCutting &
marking
Panel lineBlock Assy Block
painting
Block
outfitting
Block
errection
Non value
added
value added
TimeRaw material Finished goods
WASTE :
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Types of wastes
There are eight types of wastes
1. Over production
2. Inventory
3. Conveyance
4. Defect production
5. Process related
6. Operation related
7. Idle time waste
8. Under utilized People
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1. Over production waste
Making what is unnecessary, when it is unnecessary and in an unnecessary
amount
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OVER PRODUCTION
Large batches and Inventory
Planning full utilization of machines and Labors
Producing more goods than market demand
Goal “Produce as needed when needed”
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2. Inventory waste
It is when anything (materials, parts..) is retained for an length of time. This
includes finished goods as well as in process materials
Inventory is terrible
Inventory is a liability
We want zero inventory
Inventory is to be minimized
Reduce inventory
Inventory is bad, bad, bad…
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INVENTORY
High stocks of raw materials, WIP & Finished goods
Additional space requirements
Dis-order
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Cost of Inventory
Cost to borrow money
Insurance
Space
Loss due to damage and
obsolescence
Cost to count it
(over and over)
Cost to move it
(over and over)
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3. Conveyance waste
Created by conveying, transferring, picking up / setting down, piling up and
moving unnecessary items
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TRANSPORTATION
Unnecessary movement
Extra handling
Moving Inventory
Goal “There is a place for everything, and everything has its place”
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4. Defect production waste
Waste related to costs for inspection of defects in materials, processes,
customer complaints and repairs
Defects
Primary defects Secondary defects
• Processing omissions
• Processing errors
• Missing parts
• Wrong items
• Adjustment errors
• Miss operation
• Work piece setting wrong
• Wrong work piece
• Incorrect equipment setup
• Other errors
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DEFECTS
Large delays for trouble shooting
Costly network
Dissatisfied downstream customers
Goal “Doing it Right, the First Time”
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5. Processing related waste
Unnecessary processes, operations traditionally accepted as necessary and
process errors
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PROCESSING
Poor machine maintenance
Unnecessary processing steps
Longer lead times
Goal is to “Reduce over-processing by doing things right the first
time”
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6. Operation related waste
Unnecessary movement, movement that does not add value, movement
that is too slow or too fast
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MOTION
Incorrect Layouts of office, Factory etc.,
Lack of proximity of machines
Off-line resources
Goal is “Reduce motion through proper planning, executing, and
maintaining your process”
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SSrinivasu
7. Idle time waste
Waste of which the causes originate in waiting from materials, operations,
conveyance, inspection as well as the idle time attendant to monitoring and
operation procedures
Why doesn’t
it start?
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WAITING TIME (DELAYS)
Watching machines work
Long set-up and lead times
Goal is to “ Be accountable for information needed and
information delivery”
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8. Under utilized Manpower waste
Underutilized People – Lack of focus or systemic
wastes
• Lack of ownership of tasks, unnecessary
assignment
• Lack of goal alignment
• Lost creative insights
Goal is to “Communicate expectation, provide mentoring ,
support, and empowerment”
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Our Goal when dealing with “WASTE“
Goal = Get ever closer to zero
Zero defects
Zero scrap
Zero rework
Zero receiving rejections
Zero downtime
Zero inventory
Zero handling
Zero paperwork
Zero mistakes
Zero absenteeism
Zero waste
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Purpose of having SEIRI
Create valuable and safe working space.
Prevent mistakes: miss-usage, miss-handling, miss-
transport etc.
Prevent material deformation. Prevent dead lock of fund
and capital.
Create spacious feeling at work place.
Seiri - The approach to raise work efficiency
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Action for SEIRI
• Sort out and take out unnecessary
items and discard them
Remember : Bogi
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Action guideline for SEIRI - Steps
Seiri is to perform clearing up (sort) activities with group participation.
Sort out Wanted items and Unwanted
items.1
Dispose off (send for treatment) the
unwanted items2
Provide streamlined, safe and proper
storage conditions for wanted items.3
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RED Tag - Model
RED TAG
Classification 1. Rawmaterial
2.Work-in-progress
3.Conponent part
4.Finished product
5.Machine / Equipment
6.Mould / Jigs
7.Tools/Fittings
8. Others
Name of the item:
Order number
Quantity/ Value _____ items , Value / item______ , Total :
Reason
1.Unnecessary
2.Defective
3.Non Urgent
5.Left over material
6.Unknown
7.Other
Section reponsible _____ Dept. , Section______ , _______ Group
Action
1.Eliminate
2.Return
3.Move to red tag storage
4.Store seperately
5.Other
Completed
DateTag atttached date Action taken date
Reference no.
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Separate the wanted
& unwanted
Junk & waste Repairable Wanted
Discard To the next S
No use Repair & use
Action guideline to follow SEIRI
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Consequences of not following SEIRI
Keeping unnecessary things needs more space
It becomes difficult to say which is needed and not
Cleaning activity added on the unnecessary parts
Some time it needs maintenance and it adds cost
Creates safety issues in some cases
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Purpose of having SEITON
Eliminate unproductive “search time”.
Create and claim back valuable work space.
Compress stock quantity.
Create systematic, direct visual effect layout (visual
management) at work place.
Seiton - The approach to systematic arrangement
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• Arrange necessary items in proper
order so that they can be easily
picked up for use
Action for SEITON
Remember – Books arrangement in Library
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Action guideline for SEITON
Keep the things in order1
Every thing in its place2
The things to be easily reachable3
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Some 5S Examples
Before 5S
After 5S - Cleaned,
organized and drawers
labeled (less time and
frustration hunting)
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5S Examples - Sort, Set in Order
See the difference?
1. Sort - All unneeded tools, parts and supplies are removed
from the area
2. Set in Order - A place for everything and everything is
in its place
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Consequences of not following SEITON
Things are seldom available when needed,
More time spent for locating misplaced things
Defective & good items / similar looking items get mixed up
Prone to Loss of production
Excess inventory
Pressure for more space
Items are lost
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Purpose of having SEISO
Remove untidiness, prevent dust accumulation.
Expose existing & potential problems.
Promote preventive maintenance.
Prevent accident, secure quality.
Make a clean & pleasant work place.
Study cleaning method
improve cleaning efficiency
eliminate the needs of cleaning.
Seiton - The approach to enhance work quality
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Cleaning means
Checking
Eliminating the causes of defects
Maintaining optimum conditions
Attention to details to achieve the
best conditions
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• Clean your workplace / surroundings
thoroughly so that there is no dust on
the floors / machines & equipment
Action for SEISO
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Place Item When How Who
Action guide Guidelines for SEISO
Establish what to clean , cleaning method & responsibility1
Real cleaning is something that comes from the heart 2
Make cleaning everyday a habit3
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Consequences of not following SEISO
Dust / dirt will affect the machine performance
Cleaning reveals hidden problems which may get
overlooked otherwise
Dust & dirt will affect performance &
aesthetic quality
Unpleasant work place will result.
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Purpose of having SEIKETSU
Set up clean and comfortable work place.
Improve, maintain and aim for higher level of
achievement.
Establish higher level of company image.
Bring up product superiority (indirectly).
Seiton - The approach to safety & work enthusiasm
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Action for SEIKETSU
• Establish procedures & standards to
maintain 5S and perform regular patrol
to all areas & continually audit the 5S
progress
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Action guidelines for SEIKETSU
Make standards for clean work place
Convert standards to VCS
Facilitate identification of deviations for immediate
corrective actions
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Consequences of not following SEIKETSU
More chance for going back to old condition
“Things get measured, will improve”
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Purpose of having SHITSUKE
To cultivate good habits and sustain the 5S culture.
To maintain a group of well disciplined work force.
Abiding to standards and ruling to secure a clean, safe,
healthy, happy and efficient work place by everyone for
everyone (total work force).
The approach to discipline group works &
continual improvement.
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Action for SHITSUKE
• Cultivate spirits of self discipline and
self awareness to maintain, encourage
and continue 5S activities and
sustaining it with timely motivation,
training and sharing of working
results.
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Action guideline for SHITSUKE
Train people to follow good house keeping disciplines
automatically
Follow discipline in maintaining 5S and make it a habit
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The implementation of 5S
Step 1 Start with the Leadership Team
Step 2 Build the Infrastructure
Step 3 Launch Communications
Step 4 Train Teams in 5S Techniques
Step 5 Begin 5S Pilots
Step 6 Establish Best Practices
Step 7 Develop a Full Roll-Out Plan
Step 8 Continually Evaluate & Adjust
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5S – Visible benefits
Improves on-time delivery
Improves quality / reduced defects
Increases productivity , Reduces lead times
Reduces waste in materials, space and time
Reduces inventory and storage costs
Reduces changeover time , Reduces equipment
downtime
Improves safety
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Action on Ground
Daily monitor and improve the score
Put 5S Score yourself or do it by cross audits
Spend daily first 10 minutes for machine cleaning
Every Saturday spend 1 hour for Seiri & Seiton ( 2s
Activities )
Monthly once conduct red tag campaign to remove
unwanted / scrap materials