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Oct 26, 2014

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MAKALAH PREVENTIVE MAINTENANCE

DISUSUN OLEH : DARRYL VALENTINO SUMIRANA ( 209131008 )

POLITEKNIK MANUFAKTUR NEGERI BANDUNG

PREFACEPraises for Allah SWT. has given his blessing and the gift to us so we managed to finish this paper is timely entitled "Preventive Maintenance".This paper contains information about understanding preventive maintenance or more specifically discuss the application of preventive maintenance, characteristics and application of preventive maintenance,this paper is expected to provide information to us after learning all about preventive maintenance.

We realize that this paper is far from perfect, therefore criticism and suggestions from all parties as constructive is always our hope for the perfection of this paper.

The final word, we say thank you to a party all who have participated in the preparation of this paper from beginning to end, may Allah Almighty always be pleased with all our efforts, amin.

Bandung, 20 Juli 2012

Writer

DAFTAR ISI

Pendahuluan ............................................................................................... 1 Daftar isi ..................................................................................................... 2 Chapter 1 : introduction .............................................................................. 3 Chapter 2 : Basic Theory ............................................................................ 8 Bab 3 Bab 4 : Pembahasan .............................................................................. 16 : Kesimpulan dan Saran .............................................................. 26

Daftar Pustaka ............................................................................................. 28

CHAPTER I INTRODUCTION

1.1 Background British Standard Glossary of terms (3811:1993) defined maintenance as: the combination of all technical and administrative actions, including supervision actions, intended to retain an item in, or restore it to, a state in which it can perform a required function. maintenance is a set of organised activities that are carried out in order to keep an item in its best operational condition with minimum cost acquired. Bandung Polytechnic for manufacturing its self is one of the professional educational institutions in Indonesia, as befits an educational institution, then it becomes an obligation for Bandung Polytechnic for Manufacturing to provide supporting facilities in the educational process and the production process. In the last decade, the need for Maintenance of a company or industry, particularly in Polman with the activities of maintenance and regular maintenance on a machine or tools, so that the machine can run well. In this case, preventive maintenance became one of the most important maintenance activities that students should do. The preventive maintenance program covered several things such as : Maintenance schedule of all types of machine that exist in POLMAN Doing maintenance activities based on schedule board ( inspection, small repair, medium repair, overhaul ) Trouble analysis and trouble repair

From those things above we can make a conclusion that preventive maintenance is one of the most important maintenance activities and we should know about it. 1.2 Objective of the Study The purpose of this activity report writing are:

1. Students understand the meaning of a engine maintenance, so as to minimize the occurrence of damage to the machine that can inhibit the activities of education both and production both.

2. Students can understand about the basics of maintenance, especially about preventive maintenance.

3. Students are expected to master the sciences base and use of tolls can be applied in preventive maintenance activities.

4. Students can take knowledge when the practice preventive maintenance and then sharing for other students.

5. Students can working with the attention of safety factor for tools and human in the area working 1.3 Scope of the Study The report of this praktice is focused on: a) Limitation of issues Understanding the right prespective of maintenance and preventive maintenance Improving knowledge about lubrication Improving knowledge about calibration Inspection of schaublin lathe machine

Inspection of aciera unviersal milling Inspection of surface grinding machine Repair the carriage bolt of lathe machine Change the nut of aciera universal milling Small repair of aciera universal milling Lubrication for schaublin universal milling Calibration for aciera universal milling Levelling milling machine

b) Technical Collection of the data Data obtained in the manufacture of this activity report sourced from: The Explanation of the instructor. reference books that suport about Preventive maintenance and the sciences of the other maintenance. Browsing the internet. Discussions with the lecturers and the parties related to the process of making this activity report. Taking pictures through the camera

1.4. Systematics of Writing

This report made by systematic to divided into four chapters, Including :

Chapter I is an introduction that describes the background, objectives and so on.

Chapter II is the basis of the theory, which explains about all things related to the theory and the theory of Maintenance related with machinery, machine elements etc.

Chapter III is a discussion, which includes the discussion conducted at the preventive maintenance, problem analysis and solution of problems.

Chapter IV is the conclusion, which is the conclusion of the maintenance foundry and maintenance work practices and suggestions to make a change towards a better.

CHAPTER II BASIC THEORY 2.1 Definitions of MaintenanceBritish Standard Glossary of terms (3811:1993) defined maintenance as: the combination of all technical and administrative actions, including supervision actions, intended to retain an item in, or restore it to, a state in which it can perform a required function. maintenance is a set of organised activities that are carried out in order to keep an item in its best operational condition with minimum cost acquired. Activities of maintenance function could be either repair or replacement activities, which are necessary for an item to reach its acceptable productivity condition and these activities, should be carried out with a minimum possible cost.

2.2 Maintenance History1. In the period of pre-World War II, people thought of maintenance as an added cost to the plant which did not increase the value of finished product. Therefore, the maintenance at that era was restricted to fixing the unit when it breaks because it was the cheapest alternative. 2. During and after World War II at the time when the advances of engineering and scientific technology developed, people developed other types of maintenance, which were much cheaper such as preventive maintenance. In addition, people in this era classified maintenance as a function of the production system. 3. Nowadays, increased awareness of such issues as environment safety, quality of product and services makes maintenance one of the most important functions that

contribute to the success of the industry. World-class companies are in continuous need of a very well organised maintenance programme to compete world-wide.

2.3 Maintenance ObjectivesMaintenance objectives should be consistent with and subordinate to production goals. The relation between maintenance objectives and production goals is reflected in the action of keeping production machines and facilities in the best possible condition. Maximising production or increasing facilities availability at the lowest cost and at the highest quality and safety standards. Reducing breakdowns and emergency shutdowns. Optimising resources utilisation. Reducing downtime.

Improving spares stock control. Improving equipment efficiency and reducing scrap rate. Minimising energy usage. Optimising the useful life of equipment. Providing reliable cost and budgetary control. Identifying and implementing cost reductions.

2.4 Types of Maintenance Run to Failure Maintenance (RTF) Preventive Maintenance (PM) Corrective Maintenance (CM) Improvement Maintenance (IM) Predictive Maintenance (PDM)

2.5.1 Run to Failure Maintenance (RTF)The required repair, replacement, or restore action performed on a machine or a facility after the occurrence of a failure in order to bring this machine or facility to at least its minimum acceptable condition. It is the oldest type of maintenance. It is subdivided into two types: Emergency maintenance: it is carried out as fast as possible in order to bring a failed machine or facility to a safe and operationally efficient condition. Breakdown maintenance: it is performed after the occurrence of an advanced considered failure for which advanced provision has been made in the form of repair method, spares, materials, labour and equipment.

Disadvantages: 1. Its activities are expensive in terms of both direct and indirect cost. 2. Using this type of maintenance, the occurrence of a failure in a component can cause failures in other components in the same equipment, which leads to low production availability. 3. Its activities are very difficult to plan and schedule in advance.

This type of maintenance is useful in the following situations: 1. The failure of a component in a system is unpredictable. 2. The cost of performing run to failure maintenance activities is lower than performing other activities of other types of maintenance. 3. The equipment failure priority is too low in order to include the activities of preventing it within the planned maintenance budget.

2.5.2 Preventive Maintenance (PM)It is a set of activities that are performed