Tpm by drh.
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Recap´ Ing. David Ruiz
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video
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TPM is a productive maintenance implemented by all employees in an organization.
TPM involves everyone in the organization from operators to senior management in equipment improvement.
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Total = All individuals in the organization working together.
Productive = production of goods that meet or exceed customer’s expectations.
Maintenance = keeping equipment and plant in good condition at all times.
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This is an innovative Japanese concept. Developed in 1951. Nippondenso was the 1st company that
implemented TPM in 1960. Based on these developments Nippondenso
was awarded the distinguished plant prize for developing and implementing TPM, by the Japanese Institute of Plant Engineers ( JIPE ).
This Nippondenso became the first company to obtain the TPM certifications.
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Increase production quality.
Increase job satisfaction.
Using teams for continuous improvement.
Improve the state of maintenance
Empower employees
CONTINUOUS PROCESS IMPROVEMENT
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Avoid wastage in quickly changing economic environment.
Producing goods with out reducing product quality.
Reduce cost for production Produce a low batch quantity at the earliest
time. Goods send to the customer must be non
defective.
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Use Overall Equipment Effectiveness (OEE) as a compass for success.
Improve existing planned maintenance systems
Work toward zero losses Providing training to upgrade operations and
maintenance skills Involve everyone and utilize cross-functional
teamwork
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Breakdown maintenance Preventive maintenance
.periodic maintenance( time based maintenance) .Predictive maintenance Corrective maintenance Maintenance prevention
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Repairs or replacements performed after a machine has failed to return to its functional state following a malfunction or shutdown.
e.g., an electric motor of a machine tool will not start, a belt is broken, etc.
Under such conditions, production department calls on the maintenance department to rectify the defect.
After removing the fault, maintenance engineers do not attend the equipment again until another failure or breakdown occurs.
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The primary goal of preventive maintenance is to prevent the failure of equipment before it actually occurs.
It is designed to preserve and enhance equipment reliability by replacing worn components before they actually fail.
It is a daily maintenance which includes cleaning, inspection, oiling and re-tightening of equipments.
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Improved system reliability.
Decreased cost of replacement.
Decreased system downtime.
Better spares inventory management.
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Time based maintenance consists of periodically inspecting, servicing and cleaning equipment and replacing parts to prevent sudden failure and process problems.
Benefits:
Extended life and use of the equipment.
Reliable production at the times when machine is needed most.
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This is a method in which the service life of important part is expected based on inspection or diagnosis, in order to use the parts to the limit of their service life.
Compared to periodic maintenance, predictive maintenance is condition based maintenance.
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Increased plant readiness due to greater reliability of the equipment.
Many industries report from two to ten percent productivity increases due to predictive maintenance practices.
Reduced expenditures for spare parts and labor.
Reduces the probability of a machine experiencing a disastrous failure, and this results in an improvement in worker safety.
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Maintenance actions carried out to restore a defective item to a specified condition
Corrective maintenance is probably the most commonly used approach, but it is easy to see its limitations.
When equipment fails, it often leads to downtime in production.
In most cases this is costly business. Also, if the equipment needs to be replaced, the cost of replacing it alone can be important.
It is also important to consider health, safety and environment (HSE) issues related to malfunctioning equipment.
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It indicates the design of a new equipment.
Weakness of current machines are sufficiently studied ( on site information leading to failure prevention, easier maintenance and prevents of defects, safety and ease of manufacturing ) and are incorporated before commissioning a new equipment.
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Based on five Japanese words that begin with ‘S’, the 5S Philosophy focuses on effective work place organization and standardized work procedures.
5 S’s 1.Sort :(Seiri)2.Set In Order:(Seiton)3.Shine: (Seiso)4.Standardize: (Seiketsu) 5.Sustain: (Shitsuke)
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The first S focuses on eliminating unnecessary items from the workplace.
An effective visual method to identify these unneeded items is called red tagging.
A red tag is placed on all items not required to complete your job. These items are then moved to a central holding area.
This process is for evaluation of the red tag items.
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second S focuses on efficient and effective storage methods and how to organize the work area.
Strategies for effective Set In Order are painting floors, outlining work areas and locations, shadow boards, and modular shelving and cabinets for needed items such as trash cans, brooms, mop and buckets
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Once you have eliminated the clutter and junk that has been clogging your work areas and identified the necessary items, the next step is to thoroughly clean the work area.
Workers will also begin to notice changes in equipment and facility location such as air, oil, coolant leaks, fatigue, breakage, and misalignment.
These changes, if left unattended, could lead to equipment failure and loss of production.
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Now the first three S’s are implemented. Use standard methods to keep Sort, Set
In Order, and Shine to a condition . Allow your employees to participate in the
development of such standards.
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This is the most difficult S to implement and achieve.
Maintain through empowerment, commitment, and discipline .
Sustain focuses on defining a new status quo and standard of work place organization.
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Simplifies work environment reduces waste Improves quality Improves safety Provide self esteem for everyone in the
organization.
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Total commitment to the program by upper level management is required in both programs.
Employees must be empowered to initiate corrective action, and
A long range outlook must be accepted, as TPM may take a year or more to implement.
It is an on-going process which is a continuous process improvement.
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Category TQM TPM
Object Quality ( Output and effects )
Equipment ( Input and cause )
Mains of attaining goalSystematize the management. It is software oriented
Employees participation and it is hardware oriented
Target Quality for PPM Elimination of losses and wastes.
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1 2 3 4 5 6
7 8
PILLARS of TPM
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Train the operators to close the gap between them and the maintenance staff, making it easier for both to work as one team
Change the equipment so the operator can identify any abnormal conditions and measure before it affects the process or leads to a failure
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Seven (7) steps are implemented to progressively increase operators knowledge, participation and responsibility for the equipment.
1. perform initial cleaning and inspection 2.Countermeasures for the causes and effects
of dirt and dust 3.Eastblish cleaning and lubrication standards 4.Counducting general inspection training 5.Carry out equipment inspection checks 6.workplace management and controls 7.Continious improvement
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Objectives: Maximize efficiency by eliminating waste and manufacturing loss
Manufacturing losses are categorized into 13 bid losses:
Equipment losses (6)
Manpower losses (4)
Material losses (3)
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. .DOWNTIME LOSS
Speed loss
Quality loss
Equipment failure / breakdowns
Set-up / adjustments
Minor stopping
Reduced speed
Process errors
Rework / scrap
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.
Manpower losses
Cleaning and checking
Waiting materials
Waiting instructions
Waiting quality confirmation
Material losses
Material yield
Energy losses
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OEE figures are determined by combining the availability and
performance of your equipment with the quality of parts made
OEE measures the efficiency of the machine during its loading time.
Planned downtime does not effect the OEE figure
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.
Availability Downtime loss
Performance Speed loss
Quality Yield Quality loss
Overall equipment effectiveness = Availability * performance * Quality yield
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.Overall Equipment Effectiveness = Availability *performance * Quality yield
Availability = Time available for production -- Downtime Time available in production
Performance = Ideal cycle time * number of parts produced Operating time
Quality Yield = total number of parts produced – defect number Total number of parts produced
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Objectives : Establish preventative and predictive maintenance system for equipment and tooling
Natural life cycle of individual machine elements must be achieved
correct operation correct set-up cleaning lubrication feedback and repair of minor defects quality spare parts
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Objective: establish system to shorter new production or equipment development start-up, commissioning and stabilization
time for quality and efficiency New equipment need to be : easy to operate easy to clean easy to maintain and reliable have quick set-up times operate at the lowest life cycle cost
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Definition: a process for controlling the condition of equipment components that affect variability in product quality
Objectives: to set and maintain condition to accomplish zero definition
Quality rate has direct correlation with
material condition equipment precision production methods process parameters
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Administration and support departments can be seen as process plans whose principles tasks are to collect, process and distribute information.
Process analysis should be applied to streaming information flow
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TPM is a continuous learning process Two major components : soft skills training : how to work as a
team, diversity training and communication skills
Technical training : upgrading problem-solving and equipment-related skills
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Assuring safety and preventing adverse environment impacts are important priority in ant TPM effort
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Increasing motivation: changing people attitudes
Increasing competency and people skills Improving the work environment, so that it
support the establishment of a program for implementing TPM
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.preparation
Announcement to TQM introductionIntroductory education campaign for workforce
TPM promotionEstablish basic TPM policies and goals
Preparation and formulation of a master plan
Kick-off Invite customers, attitude companies and subcontractors
implementation
Develop an equipment management programDevelop a plan maintenance program
Develop a Autonomous maintenance programIncreasing skills of production and maintenance personals
Develop early equipment management program
Stabilization Perfect TPM implementation and raise TPM levels
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State TPM objectives in a company newsletter
Place articles on TPM in a company newspaper
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Seminars for managers Slide presentation for all employs
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Special committees at every level to promote TPM
Newsletter Articles Videos Posters
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Analyze existing conditions Set goals Predicting results
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A master plan lays out your goals, what you will do to achieve them and when you will achieve them
Detailed plans for each pillar have to be prepared
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The main kick-off to TPM should take the form of a formal presentation with all the employees attending
This opportunity can be used to gain the full support of the employees
Invite external customers, affiliation and subcontracting companies
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The principle of designing for maintenance prevention can be new products, and to new existing machines
New products: must be designed so that they can be easily produced on new existing machines
New machines : must be designed for easier operation, changeover and maintenance
Existing machines: Determine how to eliminate the problem and
reduce maintenance through an equipment design change or by changing the process
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Increase equipment productivity Reduced equipment downtime Increased plan capacity Lower maintenance and production cost Approaching zero equipment-caused
defects Enhance job satisfaction Increase return on investment
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Instructions Step1 Stand in a circle with a group of at least four people. Step2 Use your right hand to grab the right hand of the
person directly across from you. Step3 Use your left hand to grab the left hand of the person
to the right of the person holding your other hand. Step4 Untangle, as a group, back into one open circle,
without letting go of hands or dislocating any joints.
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TPM may be the only thing that stands between success and total failure for some companies.
It can be adapted to work not only in industrial plants, but in construction, building maintenance, transportation, and in a variety of other situations.
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A. Total problem maintenanceB. Total process maintenanceC. Total productive maintenanceD. Time process management
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c Total productive maintenance
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A. Japanese conceptB. Chinese conceptC. American conceptD. Indian concept
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A Japanese concept
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A. MicrosoftB. Sun MicrosystemsC. Chunlan Group CorpD. Nippondenso
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D Nippondenso
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A. Predictive maintenanceB. Periodic maintenanceC. Breakdown maintenanceD. Preventive maintenance
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C Breakdown maintenance
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a) A=(t/p)*100
b) A=(p/t)*100
c) A=((d-p)/d)*100
d) A= (t/d)*100
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a A=(t/p)*100
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a) E=((D*N)/T)*100
b) E=(D/T)*100
c) E=((C*N))/T)*100
d) E=(R/T)*100
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C E=((C*N))/T)*100
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a. R= (Q/N)*100
b. R=(N-Q)/N *100
c. R= (T/N)*100
d. R=(C/T)*100
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b R=(N-Q)/N *100
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a. EE= A/E*R
b. EE=E/A*R
c. EE=A*E*T
d. EE=A*E*R
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d EE=A*E*R
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