Senior High School QUARTER 1 Electrical Installation and Maintenance NCII MODULE 1 Prepare Electrical and Hydraulic Tools Electrical and Installation Maintenance – Grade 11 Alternative Delivery Mode Quarter 1-4 – Module 1-4 Republic Act 8293, section 176 states that: No copyright shall subsist in any work of the Government of the Philippines. However, prior approval of the government agency or office wherein the work is created shall be necessary for exploitation of such work for profit. Such agency or office may, among other things, impose as a condition the payment of royalties. Borrowed materials (i.e., songs, poems, pictures, photos, brand names, trademarks, etc.) included in this book are owned by their respective copyright holders. Every effort has been exerted to locate and seek permission to use these materials from their respective copyright owners. The publisher and authors do not represent nor claim ownership over them. Published by the Department of Education Secretary: Leonor M. Briones Undersecretary: Assistant Secretary: Development Team of the Module Writer: Content Editor: Language Editor: Proof-reader: Engr. Roland V. Sindayen Jr. Cherry Q. Sadicon; Fe L. Dalugdug; Shiela T. Arellano Cleo C. Canonce Marsha Liza L. Management Team: Chairperson: Dr. Arturo B. Bayocot, CESO III Regional Director Co-Chairperson: Dr. Victor G. De Gracia Jr. CESO V Asst. Regional Jonathan S. dela Peña, PhD, CESO V Schools Division Superintendent Rowena H. Para-on, PhD Assistant Schools Division Superintendent Mala Epra B. Magnaong, Chief ES, CLMD Members: Neil A. Improgo, PhD, EPS-LRMS; Bienvenido U. Tagolimot, Jr., PhD, EPS-ADM; Erlinda G. Dael, PhD, CID Chief; Norberto E. Rosales, EPS (TLE-TVL) In-charge; Celieto B. Magsayo, LRMS Manager; Loucile L. Paclar, Librarian II; Printed in the Philippines by __________________________________ Department of Education – Bureau of Learning Resources (DepEd-BLR) Office Address: Zone 1, Upper Balulang Cagayan de Oro City 9000 Telefax: (088) 880-7071, (088) 880-7072 E-mail Address: region10@deped.gov.ph Department of Education • Republic of the Philippines Senior High School QUARTER 1 Electrical Installation and Maintenance NCII MODULE 1 Prepare Electrical and Hydraulic Tools This instructional material was collaboratively developed and reviewed by educators from public and private schools, colleges, and/or universities. We encourage teachers and other education stakeholders to email their feedback, comments, and recommendations to the Department of Education at action@deped.gov.ph. We value your feedback and recommendations. Department of Education • Republic of the Philippines Table of Contents Introduction …………………………………….…….…… 1 Overview ………………………………………………… 1 Instruction ………………………………………………… 1 What to Learn ………………………………………………… 1 What I Know What Is Knew Definition of Terms ………………………………………………… ………………………………………………… ………………………………………………… 2 3 4 Quarter 1 Lesson 1 Identify and Prepare Electrical and Hydraulic Tools Learning Outcome 1. Identify Electrical and hydraulic tools Self-Check 1 Learning Outcome 2. Request tools, equipment, and materials Self-Check 2 Performance Task Learning Outcome 3. Safe Handling of Electrical Power and Hydraulic Tools. Self-Check 3 Learning Outcome 4. Operating Procedure of Electrical Power and Hydraulic Tools Self-Check 4 Performance Task Learning Outcome 5. Maintain Electrical Power and Hydraulic Tools Self-Check 5 Performance Task Post-Assessment References Answer key ………………………………………………… ………………………………………………… ………………………………………………… Introduction The content of this module will give you the opportunity to develop your skills in Preparing Electric and Hydraulic tools with accordance to standard operating procedures, techniques and knowledge of Electrical and Installation maintenance that will help you acquire National Certificate Level II. This module contains information and suggested learning activities on the preparation of electric and hydraulic tools. It includes instructions and procedure on how to prepare appropriate tools and materials needed in electrical wiring installation; in storing unused and surplus electrical materials upon completion of the job; and maintaining and soring basic tools and equipment. Overview This will be the source of information for you to acquire knowledge and skills in this particular trade independently and at your own pace, with minimum supervision or help from your instructor. This module consists of two learning outcome. The learning outcome contains learning activities with instructions sheets. Before you start, read well the discussion; answer the pre-assessment; and work out the activities provided just to assess your competence necessary to get a Certificate of Competency or National Certificate Level II. Instruction You are required to go through a series of learning activities in order to complete each learning outcome of the module. In each learning outcome are Information Sheets and activity sheets. Perform these activities on your own and answer the self-check at the end of each learning outcome. You may use another answer sheet at the end of each module to write your answers for each self-check and activity. What to Learn in this Module At the end of the lesson, you are expected to: Identify electric and hydraulic tools Request tools, equipment and materials Explain how to handle safely electrical power and hydraulic tools Identify the Parts Electrical Power Tools Explain the Operating Principles of Electrical Power Tools Practice how to operate electrical power tools Maintain electrical power and hydraulic tools 1 WHAT I KNOW? Pre-Assessment Direction: Select the best answer. Write the letter of the correct answer on your answer sheet. _____1. This is a flame retardant, moisture resistant wire used for building wiring installation in dry or wet locations. a. thermoplastic portable cords (types SJT & ST) b. thermoplastic wire (type TW) c. control cable (braided type) d. flat cord (type SPT) _____2. The appropriate tool used in cutting flexible armored cable. a. Pliers b. Backsaw c. Hacksaw d. Knife _____3. What do you call a plastic or metal material that is used for mounting of convenient outlets and switches on walls? a. Junction box b. Frames c. Utility box d. fitting _____4. It is used for branching conductors and enclosing splices. a. Utility box b. Fastening device c. Junction box d. Adhesive _____5. What is the safety device which automatically cuts off current that exceeds thecircuit rating? a. Circuit b. Circuit breaker c. Conduit d. Galvanic reaction _____6. It is a conduit fitting used to make a 90 degree change in direction of the conduit run to a quarter bend. a. coupling b. offset c. nipples d. elbow _____7. It is a process of removing sharp edges or burrs left after cutting the pipe. a. shaping b. reaming c. finishing d. smoothing _____8. How many degrees in the direction of conduit run does a quarter angle bend provides? a. 45 degrees b. 90 degrees c. 135 degrees d. 180 degrees _____9. It is a type of condulet which makes conduit turns to the right. a. C b. LL c. LB d. LR _____10. It is a short length conduit or tubing which is used to extend a conduit system and also used between conduit and tubing such as boxes or enclosures between two boxes. a. connector b. coupling c. nipple 2 d. condulets What Is New Do the following activity. Matching Type: Match the picture in Column B and Functions in Column A. 1. A handheld power tool used for cutting A. 2. Use to bend pipes using heat 3. Uses drill bit to drill holes 4. Use for polishing www.google.com 5. Use to drill holes on concrete 6. Use to bend pipes except PVC conduits B. 7. Angle Grinder 8. Hand Drill 9. Hydraulic Bender www.google.com 10. Heat Gun C. www.google.com D. www.google.com 3 Definition of Terms Flat Screw Driver - blade tip is wedge-shaped and resembles a negative (-) sign. This is used to drive screws with a single slot ahead. Philip screw driver - has a cross tip resembling a positive (+) sign. This is used to drive screws with cross slot heads. Claw Hammer- a hammer with one side of the head split and curved, used for extracting nails. Combination Pliers (Lineman’s Pliers) - is used for gripping, holding, and cutting electrical wires and cables and even small nails. Side Cutting Pliers - type of pliers is used for cutting medium and big wires and cables. Long Nose Pliers - used for cutting and holding wires. This can reach tight space or small opening where other pliers cannot reach. Wire Stripper - A tool used for removing insulation of medium sized wires ranging from gauge #10 to gauge #16. Electrician’s Knife - used by linemen to remove insulation of wire and cables in low and high voltage transmission lines. Hacksaw - tool is used to cut metal conduit and armored cable. Junction Box - an octagonal shaped electrical material where the connections or joints of wires are being done. Circuit Breaker - a protective device used to automatically blow and cuts the current when trouble in the circuit such as short circuit or overload occurs. Utility Box - a rectangular shaped metallic or plastic (PVC) material in which flush type convenience outlet and switch are attached. Stranded Wire - is made of multiple strands joined together to make a single wire. Solid Wire -is made of a single strand of copper or aluminum wire. Clamps- electrical materials used to hold and anchor electrical conduits in its proper position. Connectors- used to attach metallic or non-metallic conduit to the junction or utility boxes. Conduits/Pipes- electrical materials used as the passage of wires for protection and insulation. These could be rigid metallic, flexible metallic conduit (FMC), rigid nonmetallic (PVC), and flexible non-metallic or corrugated plastic conduit (CPC). https://gltnhs-tle.weebly.com/lesson-12.html 4 What Is It? L.O. 1. Operating Procedure of Electrical Power and Hydraulic Tools Lesson Information 1.1 Kinds and Functions of Electrical Power and Hydraulic Tools Learning Objectives: After Reading this discussion you must be able to identify electrical power and hydraulic tools that is commonly used during electrical installation. Electrical and hydraulic tools are used to multiply manual work of humans. Tools can be considered as extension of the human hand thereby increasing its speed, power and accuracy. Advantages of using proper electrical tools. 1. 2. 3. 4. 5. Efficiency of the work is met. High quality of work is achieved. Accomplishment of a task is faster. Accuracy is obtained. It is less stressful on the part of the user. Electrical Power Tools 1. Angle Grinder - An angle grinder, also known as a side or disc grinder, is a hand held power tool used for cutting, grinding and polishing. www.google.com 2. Hand Drill - A drill is a tool with a rotating drill bit used for drilling holes in various materials. The drill bit is gripped by a chuck at one end of the drill and rotated while pressed against the target material. AC Power Operated Battery Operated www.google.com www.google.com 5 3. A Heat Gun is a device used to emit a stream of hot air. Heat guns can be used to dry and strip paint, apply heat shrink tubing, apply shrink film, dry out damp wood, bend and weld plastic, soften adhesives, heat shrink wrap on packaging, and thaw frozen pipes, depending heavily on heat output www.google.com 4. Hydraulic Bender - A hydraulic pipe bender is used for bending almost all types of pipes except PVC conduit pipes. The bending capacity of hydraulic pipe benders varies as per the strength, power and performance. The hydraulic pipe benders are designed with extra power for large jobs. They are suited for various types of bending and forming applications. www.google.com Electrical Tools and Materials 1. Pliers. Hand-operated tool for holding and gripping small articles or for bending and cutting wire. The handle insulation is not considered sufficient protection alone. Other safety precaution must be observed. The common types of plier are: Diagonal cutting Snap ring www.thespruce.com www.thespruce.com Long nose Combination www.thespruce.com www.thespruce.com Slip joint Side cutting www.thespruce.com www.thespruce.com 6 2. Screw drivers are used to drive and pull out screws. They come in various sizes and shapes and with either sharp or square tips. The width of the screw driver should match the width of the screw slot. Common types of screw drivers are: Flat head Square head www.garagetooladvisor.com www.thespruce.com www.garagetooladvisor.com Reed and Prince Y tip www.garagetooladvisor.com www.garagetooladvisor.com www.thespruce.com Philip head Triangle head www.garagetooladvisor.com www.garagetooladvisor.com 3. Wire puller (fish wire) is used to pull wires into the conduit or raceway. www.google.com 4. EMT bender is a tool used to bend electrical metal tubing. www.google.com www.google.com 7 5. Drilling Equipment is needed to make holes in building structure for passage of wires and conduit in both new and old installation, indoor or outdoor wiring. Common types of drilling tools and equipment are: www.google.com www.google.com Electric drill Auger brace www.google.com www.google.com Gimlet Drill bits www.google.com Hand drill www.google.com Masonry bit 6. Soldering tools are used in making splices and taps connections of wires. www.google.com www.google.com Soldering iron with deluxe stand Soldering gun www.google.com Blow torch 7. Hammer are used to drive and pull out nails. They are made of either hard steel or plastic. A claw hammer with fiberglass insulated handle is specially designed for electricians. Common examples of hammer are: www.google.com Claw hammer www.google.com Ball peen hammer 8 www.google.com Mallet 8. Measuring tools and instrument. The electricians uses the following measuring tools and devices to measure value of voltage, current and resistance, wire length, opening sizes of wire, conduit and other items. Gltnhs-tle.weebly.com Gltnhs-tle.weebly.com Steel tape Gltnhs-tle.weebly.com Wire gauge Gltnhs-tle.weebly.com Gltnhs-tle.weebly.com Multitester Voltmeter Gltnhs-tle.weebly.com Gltnhs-tle.weebly.com Galvanometer Clamp meter Vernier caliper Gltnhs-tle.weebly.com Ammeter Gltnhs-tle.weebly.com Micrometer Caliper 9. Sawing and Cutting tool. It is used to cut through material, very often wood and metal. www.google.com Hacksaw www.google.com Keyhole saw 9 10. Wire is a single, usually cylindrical, flexible strand or rod of metal. www.google.com www.google.com Stranded Solid 11. Cables are composed of two or more electric conductors insulated from one another. They are larger than wires. www.google.com 10 Types of Wire and Cable insulation. Insulations Letter Type WP SB SBW R RH RW RH – RW RU RU MI Weather Proof Slow Burning Slow Burning Weather proof Rubber – Code Compound Heat Resistant Moisture Resistant Moisture and Heat Resistant Latex (Regular) Latex (Moisture Resistant) Mineral (Metal – Sheated) Thermoplastic Compound Thermoplastic Moisture – Resistant Thermoplastic Moisture and Heat Resistant Thermoplastic Thermoplastic and Fibrous Outer Braid Thermoplastic and Asbestos Varnish Cambric Standard Black Heat Resisting Paper Solid Type Oil – Filled Untreated Treated T TW THW TBS T V Asbestos Non – impregnated Impregnated Asbestos – Varnished – Cambric Outer Asbestos Braid Lead Covered Cotton Braid Covered Silicon Asbestos A and AA AI and AIA AVA AVB SA https://studylib.net/doc/1839746 6/preparing-electric-andhydraulic-tools 11 12. Electrical Boxes are made of steel and nonmetallic materials (plastic). Metal boxes are made of #14 heavy galvanized steel and available in four principal shapes: square, octagon, rectangular, and circular. www.google.com www.google.com www.google.com Utility box Junction box Square Box www.google.com www.google.com Circuit Breaker Box Safety Switch box Fuses and Circuit Breaker Fuses and circuit breakers are electrical protective devices which are used to interrupt the flow of current when short circuit or over current occurs. They are available in different sizes and shapes and ratings. The common types are: www.google.com Cartridge Fuse www.google.com Knife blade fuse www.google.com Plug fuse 12 www.google.com Circuit breaker (2 pole type) Switch It is an electrical device which is used to turn ON and OFF the circuit. www.google.com www.google.com Flush type Tumbler type Fittings are electrical materials which are commonly used to fit wiring devices during wiring installation. The following are some examples of these materials: www.google.com Insulated staple wire www.google.com Electrical tape www.google.com Metal clamp www.google.com Condulet www.google.com PVC fitting www.google.com PVC clamp 13 www.google.com Porcelain tubing www.google.com Sand paper www.google.com Male plug www.google.com Locknut and Bushing www.google.com www.google.com PVC and CPC Connector www.google.com PVC and CPC coupling www.google.com Wire connector Terminal block 14 What I Have Learned SELF-CHECK 1.1 Direction. On your answer sheet, illustrate the following electrical materials. 1. Circuit breaker 2. Utility box 3. Philip head screw driver 4. PVC clamp 5. Male plug 6. EMT bender 7. Locknut 8. Insulated staple wire 9. Stranded wire 10. Long nose plier What I Have Learned SELF-CHECK 1.2 Direction. Identify the tools being describe. Write your answer on your answer sheet. 1. It is used to drive and loosen screws. 2. It is a tool used to bend electrical metal tubing. 3. It is needed to make holes in building structure for passage of wires and conduit in both new and old installation, indoor or outdoor wiring. 4. It is used to pull wires into the conduit or raceway. 5. It is also known as a side or disc grinder, is a hand held power tool used for cutting, grinding and polishing. 6. These are some electrical materials which are commonly used to fit wiring devices during wiring installation. 7. It is a hand-operated tool for holding and gripping small articles or for bending and cutting wire. 8. It is composed of two or more electric conductors insulated from one another. 9. These are electrical protective devices which are used to interrupt the flow of current when short circuit or over current occurs. 10. It can used to bend electrical PVC pipe. 15 What Is In? Now since you are done performing and answering the activities intended for you to identify the electrical and hydraulic tools. This time let us deepen your knowledge about electric and hydraulic tools through identifying major parts of it. Below are the major parts of the common electric and hydraulic tools. Lesson Information 1.2 1. Parts of Angle Grinder www.google.com 2. Parts of Hand Drill www.google.com 16 3. Parts of Heat Gun www.google.com 4. Parts of Hydraulic pipe bender www.google.com 17 What I Have Learned SELF-CHECK 1.3 Direction: Identify the parts of a portable electric drill. Write the correct answer on your answer sheet. ______________1. ______________2. ______________3. ______________4. ______________5. ______________6. www.google.com ______________7. ______________8. 18 What Is In? Before you proceed with the new lesson, take a few minutes and write down some of the information that you’ve learned from the previous lessons. Do this in a sheet of paper for at least 100 words. This time you will learn new information about the process of borrowing things and making an inventory of the things you have. L.O. 2. Request tools, equipment, and materials Borrow electrical tools and materials through requisition slip form. Produce a list of electrical tools and materials using inventory form. 19 What Is It? Lesson Information 2.1 REQUISITION SLIP FORM Requisition slip form is a written or printed request of something that is needed. You can utilize this kind of form whenever you need to borrow something from your electrical laboratory just to accomplish your actual performance. REQUISITION SLIP FORM (SAMPLE) Name: Juan dela Cruz Date: Project: Extension wire Location: School Campus Classification: Electrical Installation and Maintenance NC II Purpose: For Electrical laboratory use UNIT COST NO. QUANTIY UNIT DESCRIPTION 1 10 mtrs Flat cord wire #14 AWG 2 1 pc 3 1 pc TOTAL COST 3 Gang outlet (surface type) Male plug ( heavy duty) __________________ Requisitioner ____________________ Teacher https://studylib.net/doc/1839746 6/preparing-electric-andhydraulic-tools 20 What I Have Learned SELF-CHECK 2.1 PREPARING REQUISITION SLIP FORM Direction: Using the given format below, make a requisition for your electrical project which is wiring up a small room with a lamp controlled by a switch. The activity will involve embedding a rigid conduit on the concrete wall and wooden ceiling. REQUISITION Slip Form Name: ________________ Project: ____________________ Location: ___________________ Classification:_______________ Purpose:____________________ No. Quantity Unit Description _________________ Requisitioner Unit Cost Total Cost _________________ Teacher https://studylib.net/doc/1839746 6/preparing-electric-andhydraulic-tools 21 What Is It? Lesson Information 2.2 Inventory form is a list of tools, materials, property and other resources. INVENTORY FORM (SAMPLE) Name:Juan dela Cruz Section: ________________________ School: _________________________ Shop lab: Electricity Purpose: ________________________ Tools / Equipment Quantity No. of Functional pliers 13 12 power drill 5 4 hacksaw 11 10 No. of Not Functional But Repairable No. of Condemnable No. of Borrowed No. of Missing 1 0 0 0 0 0 0 1 1 __________________ Requisitioner _____________________ Teacher https://studylib.net/doc/1839746 6/preparing-electric-andhydraulic-tools 22 What I Have Learned SELF-CHECK 2.2 PREPARING AN INVENTORY FORM Direction: Using the given format, make an inventory of your available tools inside your house. Inventory Form of Tools Name: Project: Location: Classification: Purpose: Tools Equipment Quantity No. of Functional Items 23 No. of Not Functional but Repairable Items No. of Condemnable Items No. of Borrowed Items No. of Missing Items https://studylib.net/doc/1839746 6/preparing-electric-andhydraulic-tools Performance Task (Individual Activity) 2.1 NOTE: THIS PERFORMANCE TASK IS TO BE PERFORMED ON SCHEDULED DATE. Direction: Using the given format below, make an inventory of your available tools inside your laboratory. Inventory Form of Tools Name: Project: Location: Classification: Purpose: Tools Equipment Quantity No. of Functional Items No. of Not Functional but Repairable Items No. of Condemnable Items No. of Borrowed Items No. of Missing Items https://studylib.net/doc/1839746 6/preparing-electric-andhydraulic-tools 24 What Is In? This time you will learn new things about how to handle safely electrical power and hydraulic tools. You need to learn safe handling before going on with the topic which is the operating procedure of electrical power and hydraulic tools. Tools are such a common part of our lives that it is difficult to remember that they may pose hazards. Tragically, a serious incident can occur before steps are taken to identify and avoid or eliminate tool-related hazards. . L.O. 3. Safe Handling of Electrical Power and Hydraulic Tools. Explain how to handle safely electrical power and hydraulic tools. Familiarize safety notices found in manuals. 25 WHAT I KNOW? Pre-Assessment Matching Type: Match the picture in Column B and its meaning in Column A COLUMN A COLUMN B ______1. It indicates a potentially hazardous situation which if not avoided, may result in property damage. ______2. It indicates a potentially hazardous situation which, if not avoided, could result serious injury or death. ______3. It indicates an imminently hazardous situation which if not avoided, may result in serious injury or death. ______4. Read and Understand Instruction Manual. A. B. C. D. ______5. Eye Wear Protection E . 26 What Is New Do the following activity. True or False: Direction: Write true if the statement is correct and write false if the statement is incorrect. _____1. Ensure that the heat gun, guard and attachments (Including handle) are secure and correctly fitted. _____2. Keep fingers, hands and power cords clear of the tip the heat gun (heat gun tube or nozzle). _____3. Examine the power cord, extension lead, plugs, sockets and power outlet for possible damage. _____4. Disconnect the drill from the electrical supply when installing the bits. _____5. Clamp stock so it will not move during the drilling operation. _____6. Before drilling, turn the drill on to see if the bit is centered and at place. _____7. Never grind with the portable disc grinder in an area with flammable materials or combustible gases. _____8. Never lay the portable disc grinder down until the disk stopped rotating. _____9. Never disconnect the hose when it is under pressure _____10. Keep the electrical cords and extension cords out of the way work when grinding. 27 What Is It? Lesson Information 3.1 Learning Objectives: After Reading this module you must be able to explain how to handle safely electrical power and hydraulic tools. Safe Handling and Operating Principle of Power Tools Power tools must be fitted with guards and safety switches; they are extremely hazardous when used improperly. To prevent hazards associated with the use of power tools, workers should observe the following general precautions: 2. 3. 4. 5. Never carry a tool by the cord or hose. Never yank the cord or the hose to disconnect it from the receptacle. Keep cords and hoses away from heat, oil, and sharp edges. Disconnect tools when not using them, before servicing and cleaning them, and when changing accessories such as blades, bits, and cutters. 6. Keep all people not involved with the work at a safe distance from the work area. 7. Secure work with clamps or a vise, freeing both and to operate the tool. 8. Avoid accidental starting. 9. Do not hold fingers on the switch button while carrying a plugged-in tool. 10. Maintain tools with care; keep them sharp and clean for best performance. 11. Follow instructions in the user’s manual for lubricating and changing accessories. 12. Be sure to keep good footing and maintain good balance when operating power tools. 13. Wear proper apparel for the task. Loose clothing, ties, or jewellery can become caught in moving parts. 14. Remove all damaged portable electric tools from use and tag them: “Do Not Use.” 28 Safe Handling and Operating Principle of Hydraulic Tools 15. Read and understand the entire owner's manual before attempting assembly or operation. 16. Read and understand the warnings posted on the machine and in this manual. Failure to all of these warnings may cause serious injury. 17. Replace the warning labels if they become obscured or removed. 18. Hydraulic Tools are designed and intended only if you are not familiar with the proper and safe operation of a pipe bender, do not use until proper training and knowledge have been obtained. 19. Before operating Hydraulic Tools (Pipe Bender), remove tie, rings, watches and other jewellery, and roll sleeves up past the elbows. Remove all loose clothing and confine long hair. Non-slip footwear or anti-skid floor strips are recommended. Do not wear gloves. 20. Do not operate Hydraulic tools while tired or under the influence of drugs, alcohol or any medication. 21. Check damaged parts. Before further use of the machine, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform it is intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect it is operation. A guard or other part that is damaged should be properly repaired or replaced. 22. Provide for adequate space surrounding work area and non-glare, overhead lighting. 23. Keep the floor around the machine clean and free of scrap material, oil and grease. 24. Keep visitors a safe distance from the work area. Keep children away. 25. Give your work undivided attention .Looking around, carrying on a conversation and “horse-play” are careless acts that can result in serious injury. 26. Maintain a balanced stance and do not overreach or us excessive force to perform any machine operation. 27. Use the right tool. Do not force a tool or attachment to do a job for which it was not designed. The right tool will do the job better and safer. 28. Use recommended accessories; improper accessories maybe hazardous. 29. Maintain tools with care and clean for the best and safest performance. Follow instructions for lubricating and changing accessories. 29 Note: Familiarize yourself with the following safety notices found in manuals: This means that if precautions are not heeded or observed, it may result in minor injury and/or possible machine damage. This means that if precautions are not heeded or observed, it may result in serious injury or possibly even death. Always Use Proper PPE Safety glasses must be worn at all times in work areas. Long and loose hair must be contained. Appropriate footwear with substantial uppers must be worn. Rings and jewellery must not be worn. Close fitting/protective clothing must be worn. Hearing protection must be worn when using this machine. 30 What I Have Learned SELF-CHECK 3.1 True or False Direction: Write true if the statement is correct and write false if the statement is incorrect. No Statement 1 Keep the floor around the machine clean and free of scrap material, oil and grease. 2 Never yank the cord or the hose to disconnect it from the receptacle. 3 Use the right tool. Do not force a tool or attachment to do a job for which was not it designed. The right tool will do the job better and safer 4 Maintain tools with care; keep them sharp and clean for best performance. 5 Wear proper apparel for the task. Loose clothing, ties, or jewelry can become caught in moving parts. 6 Read and understand the entire owner's manual before attempting assembly or operation. 7 Avoid accidental starting. Do not hold fingers on the switch button while carrying a plugged-in tool 8 CAUTION means that if precautions are not heeded or observed, it may result in minor injury and/or possible machine damage. 9 Use the right tool. Do not force a tool or attachment to do a job for which it was not designed. The right tool will do the job better and safer 10 Remove all damaged portable electric tools from use and tag them: “Do Not Use.” 31 Answer What Is In This time you will learn new ideas about how to operate electrical power and hydraulic tools. Always remember that power tools can be hazardous when improperly used. Since you are done with safe handling, the next topic you will be guide you on how to operate electrical power and hydraulic tools. . L.O. 4. Operating Procedure of Electrical Power and Hydraulic Tools Explain the Operating Principles of Electrical Power Tools Practice how to operate electrical power tools 32 What Is It? Lesson Information 4.1 Operating procedure of Electrical Power and Hydraulic Tools Learning Objectives: After Reading this discussion you must be able to know the operating procedures of electrical power and hydraulic tools that is commonly used during electrical installation. Operating Angle Grinder Performance Objective: Given necessary tools and materials, you must be able to operate Angle Grinder. Operating Precaution: 1. Examine the power cord, extension lead, plugs, sockets and power outlet for possible damage 2. Ensure the grinding disc for damage, don not use damage grinding disc 3. Ensure that the grinding disc, guard and attachments (Including handle) are secure and correctly fitted. 4. Keep fingers, hands and power cords clear of the grinding disc. Operating Procedure: Grinding Works 1. Attach Grinding Disc to angle grinder 2. Make sure the Disc is fully fitted with the inner flange. 3. Lock the outer flange using wrench, make sure the Disc is properly installed and lock tightly. www.academia.edu 33 4. Mark accurately the area for cutting/grinding. www.academia.edu 5. Hold tightly the handle of the grinder and turn the power switch ON. www.academia.edu 6. Drop the grinding disc/wheel through the marked area. (Caution: Hold tightly the grinder with both hands and put your goggles and dust mask) 7. Apply an amount of pressure while cutting/grinding. Make sure you hold the grinder with a firm grip, as there is a tendency for the grinder to want to jump out of your hands when it hits the area. Concrete Cutting Direction of Grinding www.academia.edu 8. After grinding, remove the disc from the cut area and Turn-Off the grinder then remove the power cord, 9. Clean the grinder before storing. 34 Performance Task (Individual Activity) 4.1 NOTE: THIS PERFORMANCE TASK IS TO BE PERFORMED ON SCHEDULED DATE. Direction: Perform the operating procedure of Angle Grinder. Trainee’s Name: __________________________________ Date: ____________ Operating Angle Grinder Directions: Rate the operation in using angle grinder against each of the following criteria. Place an X on the appropriate box at the right of each item to indicate how well the given project meets the criterion. No Criteria Yes 1. Grinding Disc/Wheel is attached properly 2. Grinding Disc/Wheel is fully fitted with the inner flange. 3. Grinding Disc/Wheel is tightly locked with outer flange using wrench 4. Area for grinding are marked before grinding 5. Operated correctly the angle grinder 6. Cleaned angle grinder before storing Comments and Suggestions: Name of Trainer Date: Name and Signature www.academia.edu 35 Operating Hand Drill Performance Objective: Given necessary tools and materials, you must be able to operate Hand Drill. Operating Precaution: 1. Examine the power cord, extension lead, plugs, sockets and power outlet for possible damage. 2. Keep fingers, hands and power cords clear of the rotating part of the hand drill and drill bit Operating Procedure: Drilling Works 1. Choose the size and location of the hole. (See Project 1.1-4b) 2. Base on the given project, measure and mark the location with Pencil. 3. Use center punch and make a small hole on the center of the marked area. Make a small hole using Center Punch www.academia.edu 4. Identify the correct size of drill bit to be used (the size depends on the size of screw being used) 5. Secure the drill bit in the chuck. (Leave the hand drill unplug) open an empty chuck by twisting the outer barrel with your hand. 6. Place the bit in between the three grips and tighten the chuck. (Use chuck key to tighten) Chuck Key Insert Drill Bit to chuck www.academia.edu 7. Drill the hole, (Always wear proper PPE) Place the point of the bit over the marked area with small hole. Marked Area for drilling www.academia.edu 36 8. Hold the hand drill perpendicular to the surface and slowly squeeze the trigger button or switch gently. (Hold firmly so it doesn’t shift once it starts turning Perpendicular with the area Trigger Button (Switch) www.academia.edu www.academia.edu Correct Way of Holding Hand Drill 9. Check the depth of your hole with the screw that is going into it. (Drill deeper if necessary) Depth of the hole depends on the screw www.academia.edu 10. Unplug the drill, and remove the bit from the chuck 11. Clean hand drill before storing. 37 Performance Task (Individual Activity) 4.2 NOTE: THIS PERFORMANCE TASK IS TO BE PERFORMED ON SCHEDULED DATE. Direction: Drill a hole for number 6 TOX for screw. Follow the operating procedure of Hand Drill. 38 Performance Criteria Check List Trainee’s Name: __________________________________Date: ______________ Operating Hand Drill Directions: Rate the operation in using Hand drill against each of the following criteria. Place an X on the appropriate box at the right of each item to indicate how well the given project meets the criterion. Criteria Yes No 1. Identified dimension and size of hole for drilling 2. Marked and punched accurately the area for drilling 3. Identified correctly the size and type of drill for drilling 4. Drill bit securely inserted to chuck and tightened. 5. Operated correctly the hand drill 6. Drilled hole accurately a. Accurate depth b. Accurate Dimension 7. Cleaned Hand Drill before storing Comments and Suggestions: Name of Trainer Date: Name and Signature www.academia.edu 39 Operating Heat Gun Performance Objective: Given necessary tools and materials, you must be able to operate Heat Gun. Operating Precaution: 1. Examine the power cord, extension lead, plugs, sockets and power outlet for possible damage 2. Ensure that the heat gun, guard and attachments (Including handle) are secure and correctly fitted. 3. Keep fingers, hands and power cords clear of the tip the heat gun (heat gun tube or nozzle) Operating Procedure: Bending Works 1. Prepare the material for heating 2. Check the nozzle to be used for heating base on the area for heating www.academia.edu 3. Hold and Turn On (Plug the power) the switch by squeezing the switch button (Most Heat Gun has variable speed and heat) squeeze to full speed and heat if the material needs more heat and medium speed and heat if the material needs small amount of heat. 4. Point the nozzle on the area or material to be heated Note; excessive heat may damage the material heated and the distance of the heat gun nozzle and area to be heated affects the amount of heat that hits material or area. 5. Turn Off and let the nozzle cool down. 6. Clean heat gun before storing. 40 Performance Task (Individual Activity) 4.3 NOTE: THIS PERFORMANCE TASK IS TO BE PERFORMED ON SCHEDULED DATE. Direction: Perform the operating procedure of Heat Gun. Performance Criteria Check List Trainee’s Name: ________________________________Date: ______________ Operating Heat Gun Directions: Rate the operation in using Heat Gun against each of the following criteria. Place an X on the appropriate box at the right of each item to indicate how well the given project meets the criterion. Criteria Yes No 1. Prepared materials for heating 2. Used correct nozzle for heating 3. Identified correctly the size and type of drill for drilling 4. Operated the Heat Gun correctly 5. Heated Material not damage 6. Cleaned Heat Gun before storing Comments and Suggestions: Name of Trainer Date: Name and Signature www.academia.edu 41 Operating Hydraulic Bender Performance Objective: Given necessary tools and materials, you must be able to operate Hydraulic Bender. Operating Precaution: 1. Check hydraulic pump for any defects before using. 2. Always observe operating precautions of the bender. Operating Procedure: 1. Identify the size of pipe for bending to match the size of die to be used. 2. Raise the handle and the upper wing plate. 3. Select the suitable bending die for the pipe to be bent and slip it on the end of cylinder ram. 4. Select the positions of swaging blocks for the pipe. Note: For shorter pipes, position the swaging blocks closer together to account for the pipe shortening during the bending process 5. Turn the swaging blocks to the notch that best fits the diameter of the pipe to be bent. (Lubricating the swaging blocks will promote ease of movement) 6. Place the pipe for bending 7. Lower the upper plate www.academia.edu 8. Close the release valve (Turn clockwise) 9. Pump the handle to bend the pipe 10. When the pipe bend has been made, release the pressure by opening the release valve (Turn counter clockwise) the ram will automatically retreat. 11. Clean hydraulic bender before storing 42 Performance Task (Individual Activity) 4.4 NOTE: THIS PERFORMANCE TASK IS TO BE PERFORMED ON SCHEDULED DATE. Direction: Perform the operating procedure of Hydraulic Bender. Performance Criteria Check List Trainee’s Name: _________________________________Date: ______________ Operating Hydraulic Bender Directions: Rate the operation in using Hydraulic Bender against each of the following criteria. Place an X on the appropriate box at the right of each item to indicate how well the given project meets the criterion. Criteria Yes No 1. Prepared pipe for bending. 2. Used appropriate die for bending. 3. Swaging blocks fitted appropriately with the size of pipe. 4. Operated the Hydraulic bender correctly 5. Pipe bent without damage. 6. Cleaned hydraulic bender before storing Comments and Suggestions: Name of Trainer Date: Name and Signature www.academia.edu 43 What Is In This time you will learn how to maintain electrical power and hydraulic tools and how to store it properly. Regular maintenance and servicing of power tools and electric tools will help to ensure that they operate with optimum efficiency at all times. This will not only help to keep tool operating costs low but it can also increase tool safety and reliability. Electrical power and hydraulic tools are maintained and stored properly upon completion of the job in line with the manufacturer’s specification. Defective electrical power and hydraulic tools are segregated and reported to the person concerned in line with the company standards. L.O. 5. Maintain Electrical Power and Hydraulic Tools Prepare Maintenance Schedule for Power Tools. Prepare Maintenance Schedule for Hydraulic Bender. Report damaged electrical and hydraulic tools. 44 What Is It? Lesson Information 5.1 Maintaining Electrical Power and Hydraulic Tools Learning Objectives: After Reading this discussion you must be able to maintain and store properly the electrical power and hydraulic tools that is commonly used during electrical installation. You must also be able to report the damaged electrical and hydraulic tools. Maintenance: 1. Maintenance is an action carried out to retain electrical power and hydraulic tools in an acceptable condition, 2. The principal objectives of maintenance can be clearly defined as follows: To extend the useful life of electrical power and hydraulic tools To assure the optimum availability of electrical power and hydraulic tools To ensure operational readiness of electrical power and hydraulic tools To ensure safety of personnel using electrical power and hydraulic tools Types of Maintenance 1. Planned Maintenance – Work activities are performed as scheduled or expected a. Preventive Maintenance –Maintenance performed to prevent or find failure before they develop into breakdown b. Predictive Maintenance – Maintenance performed at a predetermined periods when the maintenance activity is most cost effective and before the equipment fails. 2. Unplanned Maintenance – Maintenance performed unexpectedly a. Emergency – Maintenance performed to put the item on hand IMMEDIATELY to avoid serious consequences www.academia.edu 45 Maintenance Schedule Maintenance Schedule – Is a list allocating specific maintenance of equipment and tools to a specific period. Sample Maintenance Schedule MAINTENANCE SCHEDULE Maintenan ce Activity Cleaning of power tools Lubrication January February 1 1 2 3 4 2 3 / 4 / March 1 2 3 April 4 1 2 3 / May 4 / 1 2 3 June 4 / 1 2 3 Remarks 4 / After Use Complete listing of all Maintenance activities to be performed x / / Checking of power cords / Before use Accomplished Scheduled www.academia.edu Legend / -Maintenance Scheduled X –Maintenance Accomplished 46 Lubrication The following features contribute to safety and economic lubricating machine tools: 1. Plates on machines clearly show the grades of lubricant, quantities and 2. 3. 4. 5. intervals are required. The machine name, type, and model should be visible. Maintain the proper level of lubrication reservoirs. Suitable method of lubrication should be followed to minimize or prevent metal – to – metal contact at all times. Sufficient lubricant capacity is needed to prevent overheating and thermal distortion of machine tool structures. Adequate sealing should be properly observed. Install provision for removal of contaminant collected by the lubricant (e.g., filters). 6. Types of Lubricant www.google.com www.google.com 1. Liquid 2. Solid www.google.com www.google.com 3. Grease 4. Paste Liquid lubricant. A lanolin or natural water repellent lanolin is derived from wool grease and a safe alternative of those common petro chemical based lubricants. These lubricants are also preventive agents against corrosion. Water. It can also be used as a major component aside from other based oils. Vegetable oils. These are primarily derived from plants and animals. 47 Purpose of Lubricating: Lubricating performs the following key functions: 1. 2. 3. 4. 5. 6. 7. Keeps movable part apart Reduces friction Transfers heat Carries away contaminant and debris Transmits power Protects against wear Prevents corrosion BASIC LUBRICATION The function of a lubricant is simple. It reduces friction between moving metal surfaces. A lubricant coats surfaces and resists being displaced by the pressure keeping the metal parts separated. Lubricants also prevent corrosion, block contaminants and can serve as a coolant. A good lubricant flows easily under pressure and remains in contact with moving surfaces. It does not leak out from gravitational or centrifugal forces nor does it stiffen in cold temperatures. There are several types of lubricants: 1.Oils cover a broad class of fluid lubricants which has particular physical properties and characteristics. Petroleum oils (mineral oils) are made from naphthenic or paraffinic oils. Naphthenic oils contain little wax and their low pour point makes them good lubricants for most applications. Paraffinic oils, on the other hand, are very waxy, which makes them useful for hydraulic equipment and other machineries. 2.Ideal for lubricating bearings, gaskets, seals and other moving parts, greases consist of an oil or synthetic fluid (~80%), a thickening agent (~10%) and additives (~10%). The consistency of greases is usually ranked by their relative hardness on a scale set by the National Lubricating Grease Institute (NLGI). The softest greases are rated at 000 (which is a flowing liquid) with higher numbers indicating harder grease. Most grease falls in the range between 1 and 4. 3.Solid lubricants are usually fine powders, such as Molybdenum Disulfide (Moly), graphite and Teflon® (PTFE). They can be used alone, or as additives in grease or dispersions, or as dry film bonded lubricants. Lubricating solids can last longer than unfortified oils and greases because of their ability to form burnished films on surfaces. 48 4.Rust remover is used mainly to dissolve rust. It is also use as an excellent cleaner. For example, to remove a rusted bolt, spray remover directly on the bolt, wait for approximately five minutes; and unscrew. For a bicycle chain, apply the rust remover to clean the chain, and then apply a thick lubricant (oil or PL-100). WD-40 and Release All are two of the many brands of rust removers on the market. 5.Dry lubricant is a product that, although greasy when applied, dries in a few minutes and leaves a protective film. Since it dries rapidly, it doesn't attract dust, so there is no mess. This is why it is recommended to be used on rubber, car door gaskets, handsaws, mitre saw, saw sliders, window sashes, etc. It can also be used on balky wooden drawers, but cabinet makers usually prefer floor wax because it is more durable. JIG-A-LOO is the common brand of a dry lubricant. a. Locksmiths also use a dry lubricant, graphite, to free stuck door locks. This product, commonly found in stores, should be applied sparingly into the keyhole, as it is very messy. Graphite lubricant is composed of a fine black powder that no cleaner can remove, so it is wise to protect the door when graphite is applied. 6.Penetrating lubricant. Its lubricating properties persist even after having removed residues, as it penetrates into metal. It is ideal for door hinges, even the fridge, hard to open pliers, ski bindings, and as it does not hold dirt and dust. The PL-100 is thick and very efficient. Synthetic lubricants cover a broad category of oils, greases, and pastes of varied properties. Synthetic lubricants are more inert, generate less waste, are capable of a wider range of temperatures and have a longer life than petroleum materials. They are even applicable to elastomers, seals and O-rings. 1. Synthetic oils are used to lubricate instrument bearings, hydraulics, air compressors, gas and steam turbines, and other applications. They have excellent viscosity-temperature characteristics, good resistance to oxidation and an extremely wide operating temperature range. 2. Synthetic greases can last a lifetime, making them very cost-effective. They are chemically inert, and their high thermal stability makes them useful for aerospace, electrical, automotive and other high-tech or industrial applications. Some of these lubricants keep their viscosity in temperatures ranging as high as 550° F and are non-flammable up to 1,200° F. 49 Silicones are very stable and very inert lubricants, which provide a wider range of operating temperatures than non-silicone synthetic lubricants. Other advantages include water repulsion and electrical insulation. Flourosilicones have a higher resistance to harsh environments and the ability to carry bearing loads. Lubricant manufacturers can provide technical data sheets on their products to advise you on the best applications of each type of lubricant. Kinds, Uses, and Properties of Cleaning Solvents Kinds of Cleaning Solvents 1. Solutions are homogeneous mixture of two or more components; can be gaseous, liquid, or solid. When we speak of a solution, we usually think of a solid dissolved in water. While water is the most common solvent, other liquids are frequently employed as solvents for certain substances – for example wax maybe dissolved in gasoline. The dissolved material in a solution is termed as solute (e.g. wax) while the dissolving medium is called solvent (e.g. gasoline). However, the term can be interchanged depending on which substance is of greater amount. 2. Solvent is a component of a solution that dissolves solute and is usually present in large proportion or amount. It can be classified as polar or nonpolar. Polar solvents are solvents which dissolve or are soluble in water; while nonpolar solvents are solvents which do not dissolve or are insoluble in water. Solvents that are usually used for cleaning in automotive shops are water, gasoline, kerosene, thinner and detergent soap. The table below shows the kinds of cleaning solvent based on their solubility in water. Cleaning Solvents a. water b. gasoline c. kerosene d. thinner e. detergent soap Solubility in Water soluble insoluble insoluble insoluble soluble 50 Polar x x Nonpolar X X x Uses of Cleaning Solvents Cleaning Solvents Uses 1. Gasoline - It is used to wash oil/greasy tools/ equipment. 2. Diesoline - It is used to wash oil engine, transmission, and other parts of the vehicle. 3. Kerosene - It is used to remove dust, grease oil, and paint. 4. Thinner - It is used to remove spilled paint on the floor, walls and tools. 5. Soap and water - It is used to wash, clean upholstered furniture such as seats, tables, cabinets. Occupational Health and Safety Practices in Handling Cleaning Solvents Disregarding the basic precautionary measures could lead to eye injury and cuts in using cleaning solvents. You should never use compressed air to clean your clothes, hands or body. The pressure can cause the cleaning solvents and dirt particles to penetrate your skin, resulting in infection and /or blood poisoning. Do not use compressed air to clean an object immediately after it has been removed from a hot cleaning tank. Rinse the cleaning solvents away with water. Do not use carbon tetrachloride as a cleaning solution. The fumes, when inhaled can cause serious internal injury and possibly result in death. When steam-cleaning, place the object to be cleaned on a pallet and wear a face shield and rubber gloves for protection against loose debris. If a job or cleaning task requires the use of gloves, use the appropriate gloves. If you have cut, nicked, or burned yourself, or something has got into your eyes, report immediately to the first-aid person. Keep all inflammable cleaning solvents in closed tin containers and whenever possible, store them in a separate area. 5S (METHODOLOGY) 5S is a reference to a list of five Japanese words translated into English. It is a method of organizing a workplace, especially shared workplaces (like a shop floor or an office space, even in school). It is sometimes referred to as a housekeeping methodology; however this characterization can be misleading because organizing a workplace goes beyond housekeeping. 51 The key targets of 5S are workplace morale and efficiency. The assertion of 5S is, that time must not be wasted. Additionally, it is quickly obvious when something is missing from its designated location. 5S advocates believe the benefits of this methodology come from deciding what should be kept, where it should be kept, and how it should be kept. This decision making process usually comes from a concept of standardization which builds a clear understanding, among employees how work should be done. The 5S's stands for: SEIRI: SORT (CLEAN UP) This is the first in the 5S program: "Sorting" means to sort everything in each work area. Keep only what is necessary. Put in a separate storage area materials/tools that are not frequently used and discard the ones that are no longer functional. Sorting is the first step in making the work area tidy. It makes it easier to find the things you need. In the sorting process, you can eliminate broken equipment and tools. It frees up additional space when we discard the things that we no longer need. Obsolete fixtures, molds, jigs, scrap material, waste and other unused items/materials are disposed. SEITON: SET IN ORDER (ORGANIZE) This is the second step in the Five S program: Step two is to organize, to arrange or organize everything. Commonly used tools should be readily available. Storage areas, cabinets and shelves should be properly labeled. Always keep the floor clean and paint floors for you to make it easier to spot dirt, waste materials and scattered parts and tools. Outline areas on the floor to identify work areas, movement lanes, storage areas, finished product areas, etc. Put shadows on tool boards, making it easy to be located. In an office/school, there should be a designated area for bookshelves for frequently used manuals, books and catalogs. Label the shelves and books so that they can be easily found. The objective of this step is to put everything in the workplace and properly identified and labeled. This means that there are two important parts to systematic organization. The first part is putting everything in its proper place and setting up a system so that it is easy to return each item to its proper place. The second part is where good labeling and identification practices are important. Both the equipment/tools and materials you use, as well as their proper storage locations, need to be clearly identified and labeled. 52 SEISŌ: SWEEP (REGULAR CLEANING) Step Three: requires you to do regular cleaning. Once you have everything from each individual work area up to your entire facility sorted (cleaned up) and organized, you need to keep it that condition. This requires regular cleaning or to go along with our third S, "shining" things up. Regular, usually daily cleaning is needed or everything will be returned to their original places. This can be done by regular inspection. While cleaning its needed also to inspect the machines, tools, equipment and supplies you work with. Regular cleaning and inspection makes it easy to spot lubricant leaks, equipment misalignment, breakage, missing tools and low levels of supplies. If these minor problems are not addressed they can lead to a serious loss in production. SEIKETSU: STANDARDIZE (SIMPLIFY) Step Four: is to simplify and standardize our actions so that it will be a habit in our routine. The good practices developed in steps 1 through 3 should be standardized and made easy to accomplish. Develop a work structure that will support the new practices and make them into habits. As you learn more, update and modify the standards to make the process simpler and easier. One of the hardest steps is avoiding old work habits. It is easy to slip back into what you have been doing for years. It gives comfort most of the time for this is part of your habit. Use standards to help people work into new habits that are a part of your Five S program. Use labels, signages and banners in the workplace to make people aware of the standards being observed. SHITSUKE: SUSTAIN Step Five: The final step is to continue training and maintaining the standards. Have a formal system for monitoring the results of your 5S program. Constant monitoring is crucial at this stage. Continue to educate people about maintaining standards. When there are changes - such as new equipment, new products, new work rules - that will effect your Five S program, make the necessary adjustments to accommodate those changes. Make needed changes in the standards and provide training that addresses those changes. Translations and modifications Often in the west, alternative terms are used for the five S. These are "Sort, Straighten, Shine, Systemize and Sustain". "Standardize" is used as an alternative for "Systemize". Sometimes "Safety" is included as 6th S. 1. Clear out and Classify i. Clearing items no longer required ii. Tagging items that may be required and storing away from workplace 53 2. Configure i. A specific place for specific items ii. “ A place for everything and everything in its place” 3. Clean and check i. Identify the cleaning zones and establishing cleaning routines 4. Conformity 5. Custom and practice i. Monitoring process adherence ii. Continually validating process iii. Customer satisfaction by doing scientific training to workers iv. Continually focus on man, machine, material and method Alternative acronyms have also been introduced, such as CANDO (Cleanup, Arranging, Neatness, Discipline, and Ongoing improvement). Even though he refers to the ensemble practice as "5S" in his canonical work, Hirano prefers the terms Organization, Orderliness, Cleanliness, Standardized Cleanup, and Discipline because they are better translations than the alliterative approximations. Practice Good Housekeeping Good housekeeping is one of the surest ways to identify a safe workplace. You can tell how workers feel about safety just by looking at their housekeeping practices. Good housekeeping is not the result of cleaning up once a week or even once a day. It is the result of keeping cleaned-up all the time. It is an essential factor in a good safety program, promoting safety, health, production, and morale. Whose responsibility is housekeeping? It is everyone's. Clean work areas and aisles help eliminate tripping hazards. Respecting "wet floor" signs and immediately cleaning up spills prevents slipping injuries. Keeping storage areas uncluttered reduces the chances of disease and fire as well as slips, trips, and falls. Accumulated debris can cause fires and clutter slows movement of personnel and equipment during fires. Other housekeeping practices include keeping tools and equipment clean and in good shape or keeping hoses and cables or wires bundled when not in use. Broken glass should be picked up immediately with a broom and dustpan, and never with bare hands. Be aware of open cabinet drawers, electric wires, sharp corners or protruding nails. Unsafe condition should be addressed immediately. How a workplace looks makes an impression of employee’s behavior at work. A visitor's first impression of a business is important because that image affects the amount of business it does. Good housekeeping goes hand-in-hand with good public relations. It projects order, care, and pride. 54 Besides preventing accidents and injuries, good housekeeping saves space, time, and materials. When a workplace is clean, orderly, and free of obstruction; work can get done safely and properly. Workers feel better, think better, do better work, and increase the quantity and quality of their work. 55 What I Have Learned SELF-CHECK 5.1 Direction: Identify the type of lubricant that is needed. Write, “RUST REMOVER”, “SOLID LUBRICANT”, “OIL”, “GREASE”, AND PENETRATING LUBRICANT” on your answer sheet . 1. Removing rust from bolts, hand tools, bicycle chain and equipment parts. 2. Maintaining heavy structures like garage door or gate and other related tasks. 3. Application of maintenance activity for common hand tools, equipment and other hardware. 4. Recommended to be used on rubber, car door gaskets, and window sashes. _____________5. Maintenance for stock-up parts like bearing, bushing, and heavy bolts and nuts 56 What I Have Learned SELF-CHECK 5.2 Direction: Identify the following information by writing “ALWAYS” and “NEVER” before each number. Use separate sheet for your answers. ___________1. Perform regular check or the condition of tools, instrument and equipment. ___________2. Place electrical leads in areas where they can be damaged. ___________3. Assign competent people to repair damaged electrical leads, tools and equipment. ___________4. Decrease cost of replacement. ___________5. Test and tag electrical tools and equipment regularly. ___________6. Use damaged electrical leads, tools and equipment. ___________7. Use safety switches when using electrical tools and equipment. ___________8. Improved system reliability. ___________9. Apply preventive maintenance on tools and equipment to prevent electrocution. ___________10. Use electrical leads, tools and equipment in damp a wet condition. 57 Performance Task (Individual Activity) 5.1 NOTE: THIS PERFORMANCE TASK IS TO BE PERFORMED ON SCHEDULED DATE. Direction: Perform the following maintenance activities for the material indicated in “A” and “B” below. A. Hand drill, Angle Grinder and Heat Gun Cleaning Lubricating of Gears Checking of power cords and plugs Check Frayed Cords Check power Switch Check Tag-out B. Hydraulic Bender Check the oil level Check for any leaking Lubrication Cleaning 58 What I Have Learned SELF-CHECK 5.3 Direction: Using Maintenance Schedule template prepare a Maintenance Schedule for electrical power tools prepare maintenance schedule for electrical power and hydraulic tools. MAINTENANCE SCHEDULE Prepared by: ______________________ Trainer: __________________________ Maintenance Activity January February March April May June Remarks www.studylib.net/doc/18397466/ preparing-electric-and-hydraulictools 59 Post Assessment Test I – Multiple Choice Direction: Read and analyze the statement carefully. Write the letter of the correct answer in your answer sheet. 1. What measuring device is used by an electrician to measure value of voltage, current, and resistance? a. Volt-Ohmmeter c. Megger b. Multi-tester d. drilling Equipment 2. These are electrical materials in which splices and joints are being made. a. Utility box c. Square Box b. Junction box d. Electrical Boxes 3. What action can be carried out to retain an item or to restore it to a functional condition? a. repair and maintenance c. corrective maintenance b. emergency maintenance d. maintenance 4. It is an electrical device used in controlling the flow of current in a circuit or even the entire circuit. a. Flush type switch c. Main switch b. Tumbler switch d. Switches 5. Electrical conductors which is single, usually cylindrical, flexible strand or iron rod of metal. a. Stranded conductor b. Wires c. Cables d. Conductors 6. Which of the following should we use to keep a flammable cleaning solvent? a. closed tin container b. plastic pail c. aluminum basin 7. As a safety precaution, which of the following safety devices should be worn in electrical wiring? a. Face shield b. Rubber gloves c. Apron 8. Which of the following solvents should not be used as a cleaning solution for it poses hazards to health? a. Gasoline b. Kerosene c. Carbon tetrachloride 60 9. What can the operator expect to happen when the wire brush attachment is used on the portable disc grinder? a. The grinder may be jumped out or be thrown out. b. The grinder moves back and forth. c. The grinder stays steady on the material being bushed. d. The grinder performs well. 10. Why is it necessary to tighten the disk lock nut snuggly only when the disc is replaced on the portable disc grinder? a. The threads will be stripped on the spindle. b. The disc may be too difficult to remove next time. c. The natural rotation of the disc and spindle will cause the threads to tighten. d. The loose threads are allowed to hold some of the vibration created by the portable disc grinder. Test II – Identification Direction: Identify what is being described in each of the following sentences. Write your answer in your answer sheet. 1. It is used to drive and to pull out nails. 2. It is commonly used to make terminal loops on copper wire and can reach tight places. 3. It is used to scrape surfaces of conductors and to remove big cables insulations. 4. It is performed in order to correct a failure. 5. It is performed in order to prevent failures before they develop into a breakdown. 6. An accident that has to be prevented when using power tools. 7. What we look at if the product has passed the quality standards? 8. What should you do when there is something wrong with the normal function of the product after warranty period? 9. What should you do when malfunction or trouble has occurred a week after purchasing the products? 10. It is an action carried out to retain or restore an item at an acceptable condition. 61 References: Books Electrical and Installation & Maintenance Learners Manual for Senior High School Training Regulations Electrical Installation and Maintenance NCII Technical Education & Skills Development Authority Competency Based Learning Material Electrical Layout and Estimate, Fajardo Max Jr. Practical Electricity III, Azares, Efren F. and Cirilio B. Online Resources https://www.scribd.com/doc/101420918/Module-6-Preparing-Electrical-Power-andHydraulic-Tools https://lrmds.deped.gov.ph/detail/6205 https://studylib.net/doc/18397466/preparing-electric-and-hydraulic-tools https://www.slideshare.net/maricrisbrandes/electrical-and-hydraulic-toolsmaintenance-procedure https://www.csunitec.com/pdf_files/CSU-Overview-Catalog.pdf https://www.dtwd.wa.gov.au/sites/default/files/teachingproducts/AUT034_CCBY.PD F https://www.researchgate.net/publication/24399412_The_WHO_modules_in_occupa tional_safety_and_health_training_for_prevention https://www.osha.gov/sites/default/files/2018-12/fy11_sh-2231811_Mod_1_InstructorNotes.pdf https://www.academia.edu/34572518/OHSE_Trainer_training_in_Occupational_heal th_safety_and_environment_course_Trainers_Manual_Module_1 http://sam.dgs.ca.gov/TOC/3800/386/.htm http://electrical.about.com/od/electricaltools/tp/top16electricaltools.htm http://gltnhs-tle.weebly.com/module.html http://encyclopedia2.thefreedictionary.com/Electric+Power+Tool https://www.powertoolinstitute.com https://www.technologyinstitute.com https://www.omnicontrols.com https://www.wikihow.com 62 ANSWER KEY Pre Assessment Matching Type 63 Self-Check 1.2 Self-Check 1.3 Pre-Assessment Matching type 64 Activity True or False Self-Check 3.1 Self-Check 5.1 65 Self-Check 5.2 Post Assessment TEST I 66 Post Assessment TEST II 67