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MAINTENANCE
General Objectives :
Understand the maintenance system
Specific Objectives :
After learned this unit, you should be able to :-
a. Describe the definition & objective of
maintenance
b. Describe the preventive & reduce failure
c. Explain the minimum cost of maintenance
d. Explain the life period of a machine
UNIT 1.1
UNIT 1.2
UNIT 1.3
UNIT 1.4
UNIT 1.5
MAIN MENU
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HOME
MAINTENANCE
UNIT 1.1
UNIT 1.1.1
UNIT 1.1.3
UNIT 1.1.2
ASSIGNMENT
QUESTIONS
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DEFINITION AND OBJECTIVE OF MAINTENANCE
MAINTENANCE
UNIT 1.1
DEFINITION
OBJECTIVES
EXERCISE
MAIN
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Primary Goals
1. Maintaining existing equipment The timely &appropriate response to equipment failure, reductionof equipment downtime & increase in equipmentavailability.
2. Equipment inspection, cleaning & lubrication comprehensive progamme for for operators to performroutine task.
3. Equipment modification, alteration & installation. Canbe schedule during non peak period.
Secondary Goals
1. Plant protection & safety.2. Salvage of obsolete equipment and waste disposal.3. Pollution & noise control.
MAINTENANCE
UNIT 1.1
DEFINITION
OBJECTIVES
EXERCISE
MAIN
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OBJECTIVES
1. Update equipment system or machine.
2. Reduce the risk of failure for equipment.3. Enhance the quality and maximize the equipmentvalue.
4. Increase the level of strength and toughness of theequipment.
5. Easier to identify the damage & the reason contributeto the problem.
6. Can produce and estimate the minimum cost of theequipment.
7. Can expect the machines life period.
MAINTENANCE
UNIT 1.1
DEFINITION
OBJECTIVES
EXERCISE
MAIN
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Exercise
Discuss with you friend, what are the example of
maintenance activity.
(20 minutes)
MAINTENANCE
UNIT 1.1
DEFINITION
OBJECTIVES
EXERCISE
MAIN
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PREVENT AND REDUCE DAMAGE
MAINTENANCE
UNIT 1.1.1
PREVENT
MAIN
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PREVENT AND REDUCE DAMAGE
1. Electric & electronic system unpredictable lifetime.
Sometimes the equipment might having a failure
before its time.2. Periodical Maintenance is required to make sure the
instruments are not easy damaged, working safely &
outlast.
3. Periodical maintenance usually implement by doing
examination in daily, weekly, monthly or annually by
using suitable criteria.4. This can help to detect possibility that will happen to
equipment or system by doing analysis to the
examination result.
MAINTENANCE
UNIT 1.1.1
PREVENT
MAIN
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MINIMIZE MAINTENANCE COST
MAINTENANCE
UNIT 1.1.2
MINIMIZE
MAINTENANCE COST
MAIN
EXAMPLE
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MINIMIZE MAINTENANCE COST
1. Maintenance should be planned properly.
2. Made before a system or equipment is produce or
operate.
MAINTENANCE
UNIT 1.1.2
MINIMIZE
MAINTENANCE COST
MAIN
EXAMPLE
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MINIMIZE MAINTENANCE COST
Maintenance PlanningIs the place where all the maintenance processarrangement were made. And also, in this period allinformation is produce & future plan is prepared.
Without Maintenance PlanningNo maintenance plan determination to an equipmentmaintenance.
Preventive MaintenanceThe purpose of this maintenance is to determine thecondition of an equipment by referring the observation
data @ by using a criteria that has been prepared in orderto reduce failure in the system that is plan to be made.
Repair MaintenanceMaintenance that is made after a failure happened to theequipment that is maintain & also to keep the item wherethe maintenance can made the equipment operateaccording to the function that is needed
MAINTENANCE
UNIT 1.1.2
MINIMIZE
MAINTENANCE COST
MAIN
EXAMPLE
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MINIMIZE MAINTENANCE COST
Emergency MaintenanceThis maintenance is needed to repair a machineimmediately to avoid serious effect to the machine.Normally this maintenance need a long period ofmaintenance; more than one day. This failure are affectedby the environment effect.
Term & RegulationMaintenance that are more to preventive action where itsstart with the discussion result. This is followed by theterm & regulation which all the result item should be doneroutinely @ by using a process that connected to the
monitoring system.
Maintenance scheduleComplete schedule system that contain with themaintenance schedule, preventive activity that are coverwith date, time, operation number & etc.
MAINTENANCE
UNIT 1.1.2
MINIMIZE
MAINTENANCE COST
MAIN
EXAMPLE
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MINIMIZE MAINTENANCE COST
MAINTENANCE
MAINTENANCE
PLANNING
RELATIONSHIPCOST AND
TIME
MAINTENANCEPERIOD
UNIT 1.1.2
MINIMIZE
MAINTENANCE COST
MAIN
EXAMPLE
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MAINTENANCE
BACK
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MAINTENANCE
Cost
(RM)
Time
(year)
Diagram 1.1 : Relationship between the minimum cost of plan
maintenance & without plan maintenance
Without Plan
Maintenance
Plannedmaintenance
BACK
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MAINTENANCE
BACK
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To Ensure the Life Period of a Machine
MAINTENANCE
UNIT 1.1.3
LIFE CYCLE OF
MACHINES
MAIN
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To Ensure the Life Period of a Machine
1. The life period of a machine is unpredictable, dependto the environmental factors.
2. Periodic maintenance (schedule) is required to makesure the machine life time.
3. Its also depend to the machine utilization.
4. Improper maintenance would create impurity stick onthe machine / equipment that will shorten themachine life time.
5. Determine temperature changes, humidity level,chemical environmental factors.
MAINTENANCE
UNIT 1.1.3
LIFE CYCLE OF
MACHINES
MAIN
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WELCOME TO ASSIGNMENT SECTION FOR ET 603 MODULE
MAINTENANCE
ASSIGNMENT 1
ASSIGNMENT 2
MAIN
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In a group, you are required to make a research/
observation to a home appliances equipment. The
research should cover the schematic diagram, 3 types of
failure & the process step to troubleshoot the failure. The
equipment are as below :-
a. Air conditioner.
b. Washing machine.
c. Television.
d. Lamp & ceiling fan.
e. Alarm system & single phase distribution board.
f. 3 phase switch gear & distribution board.
Pass up date - ___________ 12.15 afternoon.
Format - type.
For any imitative work, marks annulment will be
implement.
Grouping ____ person per group
MAINTENANCE
ASSIGNMENT 1
ASSIGNMENT 2
MAIN
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QUESTION
1
QUESTION
2
QUESTION3
QUESTION4
QUESTION5
QUESTION
6
MAINTENANCE
QUESTIONS
ANSWERS
MAIN
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Explain the definition of maintenance.
ANSWER
QUESTION1
MAINTENANCE
QUESTIONS
ANSWERS
MAIN
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Describe the objective of maintenance.
ANSWER
QUESTION2
MAINTENANCE
QUESTIONS
ANSWERS
MAIN
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Refer to the diagram 1.1, explain the graph.
ANSWER
QUESTION3
MAINTENANCE
QUESTIONS
ANSWERS
MAIN
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What is the meaning of prevent to reduce
failure in maintenance.
ANSWER
QUESTION4
MAINTENANCE
QUESTIONS
ANSWERS
MAIN
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Explain briefly how the cost of maintenance
can be reduce.
ANSWER
QUESTION5
MAINTENANCE
QUESTIONS
ANSWERS
MAIN
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What is the factor that reduce the life
period of a machine that are using
electronics component?
ANSWER
QUESTION6
MAINTENANCE
QUESTIONS
ANSWERS
MAIN
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ANSWER
1
ANSWER
2
ANSWER3
ANSWER4
ANSWER5
ANSWER
6
MAINTENANCE
QUESTIONS
ANSWERS
MAIN
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All activities necessary to keep a system andall its components in working order.Maintenance program should be maintainthe capability of the system whilecontrolling the cost.
ANSWER1
MAINTENANCE
QUESTIONS
ANSWERS
MAIN
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a. Update equipment system or machine.b. Reduce the risk of failure for equipment.c. Enhance the quality and maximize the
equipment value.d. Increase the level of strength and
toughness of the equipment.e. Easier to identify the damage & the
reason contribute to the problem.f. Can produce and estimate the minimum
cost of the equipment.g. Can expect the machines life period.
MAINTENANCEANSWER
2
QUESTIONS
ANSWERS
MAIN
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Kos permulaan bagi senggaraan berperancangan
adalah melebihi kadar kos yang diperlukan bagi
senggaran tidak berperancangan. Kos ini akanmeningkat sedikit kerana aktiviti senggaraan
berkala yang dilakukan & akibat peningkatan usia
mesin yang digunakan.
Walaubagaimanapun kos bagi senggaraan tidak
berperancangan menunjukkan kos operasi akanmeningkat dengan banyaknya akibat daripada
terdapat banyak aktiviti sengaaraan yang tidak
terancang yang mana mengakibatkan kehilangan
kos yang lebih seperti kos buruh, masa dan
sebagainya.
MAINTENANCEANSWER
3
QUESTIONS
ANSWERS
MAIN
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Pencegahan bagi mengurangkan kerosakkan
dalam senggaraan Senggaraan ini membawamaksud sesuatu penentuan yang dibuat adalah
mengikut kepada sesuatu pemerhatian atau
menggunakan kriteria yang ada bersuaian
dengan tujuan untuk pengurangkan
kemungkinan berlakunya kegagalan dalamsesuatu sistem yang hendak dibuat.
MAINTENANCEANSWER
4
QUESTIONS
ANSWERS
MAIN
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To minimize the cost of maintenance, each ofthe maintenance equipment process need to
be planned properly and each maintenance
plan should have preventive maintenance,
corrective, schedule of maintenance & term &
regulation of maintenance.
MAINTENANCEANSWER
5
QUESTIONS
ANSWERS
MAIN
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1. Temperature changes, humidity level, chemical environmentalfactors.
2. Its also depend to the machine utilization.
3. Periodic maintenance (schedule) is required to make sure themachine life time. Improper maintenance would createimpurity stick on the machine / equipment that will shortenthe machine life time.
MAINTENANCEANSWER
6
QUESTIONS
ANSWERS
MAIN
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MAINTENANCE
Cost(RM)
Time
(year)
Diagram 1.1 : Relationship between the minimum cost of plan
maintenance & without plan maintenance
Without Plan
Maintenance
Plannedmaintenance
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