OBJECTIVE: At the end of the lesson, the students should be able to; 1. Lubricate electric tools in line with manufacturer’s specification TLE_IAEI9- 12ET-If-j-2 2. Identify the different maintenance procedure of electrical and hydraulic tools. 3. Appreciate the importance of maintaining electrical and hydraulic tools
Let’s start our day with the new lesson. Now, I have here an activity. This activity called “ Word Puzzle” M A I N T E N A N C E G F Y I O K O F I O P R N I N O U H A L I R B O D C L E A N U E O F O I L S X Z H B O T A F G R U D G E R T E D H Y D R A U L I C C A E L E C T R I C I T M A I L M Y U L A N T A Q W E A O L R N U O G U S T R U P E T O O E Q U I P M E N T K T
Let us have first a group activity . I will group you into 2 groups. Once you are all in your groups. I want you to choose one representative or leader for our presentation. Each group will prepare a short cheers and yells. This activity shows different pictures, all you need to do is to identify the pictures. Direction: Draw a smiling face 😊 if the picture shows the proper way of maintaining electric and hydraulic tools. Draw a sad face 😔 if the picture shows an improper way of maintaining electric and hydraulic tools
PROPER TOOL STORAGE Proper storage of tools ensures their durability and efficiency. They must be stored in dry places. Correct labeling of cabinets and tool racks in accessible locations for laboratory activity in the shop is also important.
BASIC TIPS IN STORING ELECTRICAL AND HYDARULIC TOOLS Commonly used tools and equipment should be placed at the center shelves of the cabinet. Heavy tools and equipment like power grinder should be placed at the lowest shelf. Light tools should be placed at the upper shelf. Tools and equipment must be stored according to their kinds. Defective tools shall keep in section intended for them for inventory purposes.
HOW TO HANDLE AND MAINTAIN TOOLS Wipe or clean tools after every use with a clean and soft cloth to remove dirt. Keep all tools in a tool room and tool rack. Tools should be applied/wiped with an appropriate oil to prevent them from rusting. Drill tools should be sharpened properly. Tooth cutting tools should be sharpened as often as necessary.
Never drop tools especially precision instrument or testing tools. Never use screwdrivers as chisel Never file the soldering tip of the soldering copper. Do not overheat the electric soldering copper. Always issue or lend tools with a receipt. Tools borrowed should be returned in a good condition.
MAINTENANCE PROCEDURE Maintenance is an action carried out to retain an item in or to restore it to an acceptable condition. Regular maintenance and servicing of power tools and electric tools will help to ensure that they operate with the optimum efficiency at all times. The first thing to do in any preventive maintenance system is to use your power of observation.
PLANNED MAINTENANCE Preventive maintenance – prevents failures before they develop into a breakdown Corrective maintenance – corrects failures Emergency maintenance – it is necessary to put the item at hold immediately to avoid serious consequences such as the loss of production, extensive damage of assets, and for safety reasons.
LUBRICANT A substance that helps to reduce friction between surfaces in mutual contact, which ultimately reduces heat generated when the surfaces move.
TYPES OF LUBRICANT Liquid Solid Grease 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 Water , can also be used as a major component aside from other based oil. Vegetable oils , these are primarily derived from plants and animals.
PURPOSE OF LUBRICATING Keeps moving part apart Reduces friction Transfers heat Carries away contaminant and debris Transmit power Protects against wear Prevents corrosion
So, now that we already know the different maintenance procedure of the electric and hydraulic tools. I will group you into 3 groups. Each group must select 1 leader to present the activity. Instruction : Each group will answer the given question and present to the class. 1. Give at least 1 basic maintenance of electric and hydraulic tools? Why? 2. Why is it important to know the proper way of maintaining the electric and hydraulic tools?
EVALUATION Direction: True or False. Write T if the statement is true and write F if the statement is False. _____ 1. Proper storage of tools ensures their durability and efficiency. _____ 2. Electric and hydraulic tools must be stored in wet places. _____ 3. Emergency maintenance – prevents failures before they develop into a breakdown _____ 4. Corrective maintenance – corrects failures _____ 5. Emergency maintenance – it is necessary to put the item at hold immediately to avoid serious consequences such as the loss of production, extensive damage of assets, and for safety reasons
Direction: True or False . Write T if the statement is true and write F if the statement is False. _____ 6. Maintenance is an action carried out to retain an item in or to restore it to an acceptable condition. _____ 7. Lubricant is a substance that helps to reduce friction between surfaces in mutual contact, which ultimately reduces heat generated when the surfaces move. _____ 8. Irregular maintenance and servicing of power tools and electric tools will help to ensure that they operate with the optimum efficiency at all times. _____ 9. Lubricants carries away contaminant and debris _____ 10. Heavy tools and equipment like power grinder should be placed at the lowest shelf.
ASSIGNMENT What are the electrical safety symbols and their meaning, ?