35538 Power Nailers Tg

Transcript

Woodworking Tools Power Nailers Teacher’s Guide Introduction This Teacher’s Guide provides information to help you get the most out of Power Nailers, part of the Woodworking Tools series. The contents in this guide will allow you to prepare your students before they use the program, assist them as they navigate through the content, and present followup activities to reinforce the material’s key learning points. Woodworking Tools is a 16-part series of programs that address the safe operation of the most popular and useful types of woodworking tools. Each program delves into a different tool, including its purpose and associated parts. It teaches students how to choose the proper blade or bit for the task and perform the various woodworking operations that can be accomplished with a particular tool. The 16 videos in this series enable and encourage students to safely and creatively use power tools to their maximum proficiency. Power Nailers is an 18-minute video targeted to teenagers and young adults. Its content is appropriate to such curriculum areas as Technology Education, Trade, and Industrial Education. In addition, the information presented in Woodworking Tools could also be presented in vocational/technical schools or adult education courses that focus on shop, carpentry, woodworking, or construction education and research. Learning Objectives After watching each video program in the series, students will be able to: • • • • Identify which tools are best for which job in the wood shop. Understand how to safely operate a variety of woodworking tools. Demonstrate how to safely clean, maintain, and sharpen a variety of woodworking tools. Explain how to change and adjust bits, blades, and other elements of a variety of woodworking tools. Educational Standards The Power Nailers video program correlates with the following standards: ■ The competency standards for Core Curriculum and Carpentry from the National Center for Construction Education & Research; ■ The State Standards of Essential Knowledge and Skills for Trade and Industrial Education (Construction-Maintenance Systems, High School) for the State of Texas; ■ The Technology Education Standards (Tools, Resources, and Technological Processes) for the State of New York. • 2.0 Career Cluster: Architecture and Construction Careers in designing, planning, managing, building and maintaining the built environment. (Competency Standards for Core Curriculum and Carpentry from the National Center for Construction Education & Research.) 2 Copyright © 2006 Shopware® • The student knows the function and application of the tools, equipment, technologies, and materials used in construction carpentry. The student is expected to safely use hand and power tools and equipment commonly employed in carpentry. The student demonstrates knowledge of new and emerging technologies that may affect construction carpentry. (Texas State Standards on Building Carpentry: Essential Knowledge and Skills for Trade and Industrial Education—Construction-Maintenance Systems, High School) • The student knows the function and application of the tools, equipment, technologies, and materials used in mill and cabinetmaking. The student is expected to safely use hand and power tools and equipment commonly employed in mill and cabinetmaking; properly handle and dispose of humanly and/or environmentally hazardous materials used in mill and cabinetmaking; utilize the proper procedures in sawing, planing, shaping, turning, boring, mortising, and sanding various types of woods; demonstrate knowledge of numerically-controlled and computer-controlled production devices; and demonstrate knowledge of new and emerging technologies that may affect mill and cabinetmaking. (Texas State Standards on Mill and Cabinetmaking: Essential Knowledge and Skills for Trade and Industrial Education— Construction-Maintenance Systems, High School) • The student applies technological knowledge and skills to design, construct, use, and evaluate products and systems to satisfy human and environmental needs. The student uses a variety of materials and energy sources to construct things; understands the importance of safety and ease of use in selecting tools and resources for a specific purpose; and develops basic skills in the use of hand tools. (New York State Standards on Technology Education—Tools, Resources, and Technological Processes) Program Summary Regardless of whether a student wants to gain an overall understanding of the myriad of woodworking tools available in today’s wood shops, or just focus on one specific tool’s features and capabilities, the Woodworking Tools series will be an invaluable visual learning aid. By emphasizing safety issues, the series allows students to understand not only which tools are best for each kind of job in the wood shop, but also how to operate, clean, maintain, and sharpen the woodworking tools for maximum efficiency and safety. 3 The Woodworking Tools video program series consists of sixteen titles: • Table Saws • Cutoff Saws • Radial Arm Saws • Band Saws and Scroll Saws • Routers • Jointers • Planers • Lathes • Power Nailers • Drill Presses • • • • • • Drills and Drivers Stationary Sanders Circular Saws Jigsaws and Reciprocating Saws Rotary Tools, Bench Grinders, and Sharpeners Building a Workcenter Power Nailers presents a comprehensive review of the basic operation, controls and features, safe operating techniques, and maintenance for three types of power nailers—the framing nailer, the finish nailer, and the powder-actuated fastener. Main Topics Topic 1: Introduction The program’s host, Pete Bilotta, introduces the three types of power nailers—tools which he believes will make the use of a hammer to drive nails virtually obsolete. Topic 2: Overview Pete presents an overview of the three types of nailers, including what job each type is used for, how each type is powered, and the types of nails it uses. Topic 3: Controls and Features This section highlights the basic controls shared by all framing and finish nailers. Topic 4: Safe Operating Techniques for Power Nailers The host reviews key safety precautions for finish and framing nailers and demonstrates how to operate a power nailer safely. Topic 5: Safe Operating Techniques for Powder-Actuated Fasteners The host continues his presentation of safe operating techniques by focusing on powder-actuated fasteners. He details safety precautions, and explains how to match power loads, ensure base material is suitable for fastening, and load the tool properly. Topic 6: Maintenance In this section, Pete explains proper maintenance and storage tips, and demonstrates how to both clear a jam in a nailer, and deal with misfires in a fastener. Topic 7: Key Points The program concludes with an overview of the key points that have been discussed. 4 Fast Facts • A clipped-head nail has a portion of the head removed, giving it a D-shape. This configuration allows more nails to fit in the magazine, which cuts down on reloading. The downside is that the nails may not meet code in certain areas, since they’re considered to have less holding power in structural applications than round-head nails. • The trigger switch in an air nailer is used to fire the nails in one of two ways. In the sequential firing mode, each squeeze of the trigger dispenses a single nail. In the bump fire mode, the trigger is held in the depressed position, while nails are dispensed each time the nosepiece contacts the work. Firing mode is determined according to the position of the drive-type selector. • On an angled nailer, the magazine is mounted at approximately 20 degrees or more, which helps improve accessibility when nailing in a confined space. • Before using a pneumatic power nailer, the first step is to insert the appropriate air inlet fitting. Air nailers accept 1/4-inch NPT fittings. The shank size must be matched to the coupler on the air line. • To prevent unintentional firing with an air nailer in the bump-fire mode, the nosepiece must not re-contact the material during recoil. • On an air nailer, nail depth is affected by the available air pressure regardless of the actual depth setting. For example, low air pressure will result in shallow nail depth even if the deepest adjustment is selected. To insure accurate nail depth adjustments, the air pressure must be within the manufacturer’s recommended operating range. This information can be found in the instruction manual that comes with the tool. • For quick visual identification, each power load on a powder-actuated fastener has a colorcoded tip. The colors have corresponding numbers to further identify strength, with number 1 (gray) being the weakest, and number 4 (yellow) being the strongest. • Operating an impact-driven fastener is essentially the same as operating a powder-actuated fastener, except that a hammer blow is required to trigger the load with an impact-driven fastener. • A good way to prevent misfires on a powder-actuated fastener is to clean the barrel and chamber using a detergent motor oil, along with a small wire brush. The parts should be dried thoroughly after cleaning, since residual oil will collect dirt and dust. • Before clearing a jam on a pneumatic nailer, remember to disconnect the air hose if applicable, set the trigger lock if equipped, and/or remove the battery and/or fuel cell. 5 Vocabulary Terms air compressor: The part of a pneumatic power nailer that compresses air in order to be used as a motive power. clipped-head nails: Nails that have a portion of the head removed, giving them a D-shape, allowing more nails to fit in the magazine. However, the nails may not meet code in certain areas, since they’re considered to have less holding power in structural applications than round-head nails. drive pins: The fasteners used for a powder-actuated nailer. finish nailers: Nailers designed to drive thin gauge nails, used primarily for assembly work and millwork installation. While most finish nailers are powered by compressed air, cordless electric models are available and can drive thin gauge nails up to 21/2 inches long. framing nailer: A hammer designed for structural nailing, as in house construction. Pneumatic framing nailers are powered by compressed air. Framing nailers are designed to accept one of two nail types: round-head nails or clipped-head nails. impulse nailer: A power nailer that relies on a fuel cell along with a rechargeable battery for power. magazine loader: Nails are stored in a chamber, called a magazine, that runs the length of the nailer. Once engaged, the magazine loader applies pressure on the nails to maintain the tool’s automatic feed. power load: On powder-actuated fasteners, the power load has a color-coded tip. The colors have corresponding numbers to further identify strength, with number 1 (gray) being the weakest, and number 4 (yellow) being the strongest. pneumatic oil: Oil used on pneumatic tools to reduce the risk of internal corrosion. powder-actuated fasteners: Designed exclusively for attaching wood to concrete or steel, these tools come in both impact-driven and trigger-activated models. round-head nails: An alternate to clipped-head nails, this type of nail has a round head. safety glasses: Usually made with shatter-resistant plastic lenses to protect the eyes from flying debris, safety lenses may be constructed from a variety of materials that vary in impact resistance. Standards suggest that they maintain a minimum 1 mm thickness at the thinnest point, regardless of material. 6 trigger switch and drive-type selector: The trigger switch is located in the nailer’s handle and is used to fire the nails in one of two ways. In the sequential firing mode, each squeeze of the trigger dispenses a single nail. In the bump fire mode, the trigger is held in the depressed position, and nails are dispensed each time the nosepiece contacts the work. Firing mode is determined according to the position of the drive-type selector. variable depth adjuster: To control how far a nail is driven into the work, power nailers are equipped with a variable depth adjuster. Depending on the setting, nails can be driven to a level just above or below the surface of the workpiece. Pre-Program Discussion Questions 1. Have you ever used a power nailer? What type did you use, and for what task? 2. Can anyone name the various types of nailers available? What do you know about them? 3. Would you consider power nailers more or less dangerous than other woodworking tools? Why? What precautions do you think should be taken to protect yourself and others when using this type of tool? Post-Program Discussion Questions 1. What are the similarities and differences between pneumatic framing nailers and impulse nailers? 2. Discuss and point out the basic controls and features of the finish nailer. 3. What are the benefits and disadvantages of clipped-head nails? 4. For what jobs are powder-actuated fasteners exclusively designed? 5. How do you test to make sure the material you are working on is suitable for fastening? Individual Student Projects • After each student has completed the first Group Activity (below), ask your students to write a paper or create a multimedia presentation discussing one of the sets of tools, addressing, in particular, the advantages and disadvantages of each design, and explaining which tool they preferred and why. Have the students consider and suggest any feature(s) that could improve the usability of the tool. 7 Group Activities • Divide your class into groups, giving each group a set of the following tools: — an angled nailer and a straight nailer — a pneumatic framing nailer and an impulse nailer — a trigger-activated powder-actuated fastener and an impact-driven fastener. Ask each group to practice operating each set of the tools, so they can see and feel the differences between them. Then have the groups rotate, so everyone can have a chance to operate each tool. • Divide the class in half and give each group either a nailer or a fastener. Have each group discuss how they would safely clear a nail jam or deal with a misfire on the fastener. Then ask each group to present its findings to the class. Internet Activities • Divide the class into two groups and ask each to review the important safety considerations for operating nailers or fasteners. Then ask each group to create a safety poster for the shop that details the safety precautions for its tool, adding images from magazines or the Internet, or of their own design. • Have your students research possible projects on the Web sites listed later in this guide, locating steps in the project that call for the use of power nailers and fasteners. This will provide practical applications for the procedures that are shown in the video. 8 Assessment Questions Q1: What types of nails are framing nailers designed to accept? Q2: What gauge nails do finish nailers typically use? Q3: For what jobs are powder-actuated fasteners exclusively designed? Q4: What are drive pins, and how are they used in a nailer? Q5: What basic controls do all framing and finish nailers share? Q6: True or False: On a straight power nailer, the magazine is mounted at a right angle to the body. Q7: How is the magazine mounted on an angled nailer? Q8: Nail depth on an air nailer is affected by what? Q9: What are important things to remember to do after each use of a pneumatic power nailer to insure optimum performance? 9 Assessment Questions Answer Key Q1: What types of nails are framing nailers designed to accept? A1: Framing nailers are designed to accept either round-head nails or clipped-head nails. Q2: What gauge nails do finish nailers typically use? A2: Finish nailers typically use 16- to 18-gauge nails from 11/4 up to 21/2 inches in length. Q3: For what jobs are powder-actuated fasteners exclusively designed? A3: Powder-actuated fasteners are designed exclusively for attaching wood to concrete or steel. Q4: What are drive pins, and how are they used in a nailer? A4: Drive pins are the fasteners used for a powder-actuated nailer. The plastic collar surrounding the tip holds the pin inside the tool’s muzzle. Drive pins are fired by power loads, which come in various strengths for different applications. Q5: What basic controls do all framing and finish nailers share? A5: All framing and finish nailers share the trigger switch, drive-type selector, variable depth adjuster, and the magazine loader. Q6: True or False: On a straight power nailer, the magazine is mounted at a right angle to the body. A6: This statement is true. Q7: How is the magazine mounted on an angled nailer? A7: On an angled nailer, the magazine is mounted at approximately 20 degrees or more, which helps improve accessibility when nailing in a confined space. Q8: Nail depth on an air nailer is affected by what? A8: Both depth setting and air pressure. Nail depth is affected by the available air pressure regardless of the actual depth setting. Q9: What are important things to remember to do after each use of a pneumatic power nailer to insure optimum performance? A9: It’s important to drain the air compressor after each use. This will prevent moisture from accumulating in the tank and contaminating the tool. To further reduce the risk of internal corrosion, apply several drops of pneumatic oil to the tool when you’re finished using it. Prior to storing the tool, fire it at least twice to allow the oil to circulate. 10 Additional Resources About.com: Woodworking http://woodworking.about.com Encarta Encyclopedia: Woodworking http://encarta.msn.com/encyclopedia_761570306/Woodworking.html Inside Woodworking: Free Online Woodworking Magazine http://www.inside-woodworking.com/tools/PowerTools.html WoodNet.net: The Woodworker’s Online Resource http://www.woodnet.net/tips/index Woodworker’s Information and Plans for Woodworkers: WOOD Magazine http://www.woodmagazine.com Woodworking Shop Safety Tips http://www.wood-worker.com/articles/shop_safety.htm Woodzone.com http://www.woodzone.com/tips.htm Available from Films Media Group • www.filmsmediagroup.com • 1-800-257-5126 Multimedia Woodshop Safety • Windows/Macintosh CD-ROM #20466 Multimedia Woodshop Safety uses video and animation sequences, along with still photos, to provide an overview of shop practices including stationary woodworking equipment, portable power and hand tools, as well as material storage and handling. In addition to the usual shop safety practices, the user is also reminded of the hazards of horseplay, loose clothing, and lack of concentration on the job. As the viewer moves into the arenas of stationary woodworking equipment and power tools, he is guided through an inspection for evidence of loose fittings, bad wiring and/or grounding, and poor tool use of lathe, drill press, and band and bench saws. The program segment dealing with materials storage offers ideas which facilitate safety and accessibility. Issues of wood stacking, container labeling, chemical mixing, hazardous materials handling, and lighting are addressed. Part of the Series Shop Safety. A Shopware Production. ©1996. Portable Power Woodworking Tools • VHS/DVD-R #26093 • 9-part series 11 This series features the most popular and useful types of woodworking tools. Students learn the safe operation of each tool, the different models and their purpose, the parts, choosing the proper blade or bit for the task, and the various woodworking operations that can be accomplished with each tool. A Meridian Production. The series includes: Biscuit Joiner | Circular Saws | Drills | Jigsaws | Power Plane | Reciprocating Saw | Router Bit Magic | Routers | Sanders. (14-20 minutes each) Safety First: Woodworking Safety • VHS/DVD-R #14464 • Closed captioned Covers the most common hand tools and their proper applications. The importance of a clean working environment, preventive maintenance on machinery, and using the correct tool for each job is covered in detail. Also covered are how to check power cords for defects, sharpening and replacing saw blades, and correct body position when using equipment. Part of the series Safety First: Shop Safety. A Cambridge Educational Production. (30 minutes) ©1995. Woodworking • VHS/DVD-R #26839 • 19-part series This comprehensive library of low-cost woodworking videos provides all of the information your students need in the world of woodworking, from types of wood, to cutting techniques, to workshop safety. Each video covers a specific topic clearly and comprehensively, giving enormous flexibility in the classroom. Use videos to complement your lesson plans, to introduce new material, to review safety procedures, or as a handy reference for students who need additional help. A Meridian Production. The series includes: Cabinet Doors and Hinges | Cabinet Drawers | Chamfers and Bevels | Crosscutting | Cutting Curves and Circles | Dados and Rabbets | Gluing and Clamping | How to Safely Build with Pressure Treated Wood | Joinery | Measuring Hardwoods | Miter Joints | Outdoor Uses of Pressure Treated Wood | Preparing Hardwood to Use | Ripping | Safety in the Workshop | Smoothing Wood | Uses of Hardwood | Using Veneers | What Is Hardwood. (8-14 minutes each) Woodworking Equipment Safety • VHS/DVD-R #20422 • 15-part series • Closed captioned This series of fifteen live-action videotapes shows students the proper safety procedures for the set-up and use of stationary and portable woodworking equipment. Viewers are guided through the step-by-step procedures for using safety guards, clamping devices, protective equipment, and more. An excellent series for introducing new students to the joys of safe woodworking and also as a refresher course for experienced craftsmen. A Shopware Production. The series includes: Router Safety | Portable Drill Safety | Saber Saw Safety | Portable Circular Saw Safety | Portable Sander Safety | Drill Press Safety | Scroll Saw Safety | Shaper Safety | Wood Lathe Safety | Jointer Safety | Thickness Planer Safety | Band Saw Safety | Radial Arm Saw Safety | Table Saw Safety | Disk/Belt Sander Safety. (13-33 minutes each) 12 Woodworking Power Tools • VHS/DVD-R #26837 • 5-part series • Closed captioned This series of live-action videotapes details both basic and advanced operational techniques for each of the five most important and useful woodworking power tools. Clear, sharp, color video graphically portrays the proper operation of each machine, and the correct use of its associated accessories. Close-ups detail how each machine performs cutting, forming, or shaping operations. Shaping procedures and considerations are stressed throughout, emphasizing the proper use of each machine’s safety guards. Personal safety procedures and equipment are also thoroughly covered, along with proper housekeeping methods which can help assure that accidents do not occur. This series is recommended for all woodworking students as well as the home craftsman. A Meridian Production. The series includes: Band Saw: Operation & Safety | Jointer/Surfacer & Accessories: Operation & Safety | Radial Arm Saw: Operation & Safety | Table Saw & Accessories: Operation & Safety | Wood Lathe & Accessories: Operation & Safety. (14 minutes each) Woodworking Tools • VHS/DVD-R #26836 • 7-part series This series explains the basic operation of each woodworking tool, how each is adjusted, how blades are changed, and how each is used for specialty operations. Safety is stressed throughout. A Meridian Production. The series includes: Band Saw | Drill Press | Jointer | Planer | Shaper | Table Saw: Safety and Basic Operation | Table Saw: Specialty Operations. (7-26 minutes each) 13 2572 Brunswick Pike, Lawrenceville, NJ 08648 w w w. s h o p w a r e - u s a . c o m Call Toll Free: 800/487-3392 35538