2 Learning TargetsI can explain safety skills used in agricultural mechanics.I can explain general shop safety.I can explain shop equipment
3 Terms Tilting Arbor Saw Kickback Band Saw Power Tool Miter Saw Saber SawStockSafetyPlanerBelt/Disk SanderSafety GlassesRelief Cuts
4 I can explain safety skills used in agricultural mechanics.
5 One of the most important things a person involved in agricultural mechanics can learn is how to create a safe place to work
6 Safety is defined as freedom from accidents. In agricultural mechanics, both hand tools and power tools are used.Whenever any type of machine is used or any type of work is done there is the possibility of accidents
7 Safety PrecautionsInstall all machinery according to the manufacturer’s specifications.Keep all tools and equipment adjusted to specifications.Use tools and equipment only for their intended purpose.Provide proper storage for tools, materials, fuels, chemicals, and waste materials.
8 Keep all moving parts properly shielded. Protect eyes, face, feet, and other parts of the body with proper protective clothing and devices.Avoid running and other horseplay that create hazards.Read and follow all precautions.Use common sense
10 Protective ClothingIt is very important, while working in the agricultural mechanics lab, to wear some type of protective clothing.The type of equipment being used by the person determines the type and amount of protective clothing.
11 The face and eyesRegarded as the most critical parts of the body to be protected.This is because the eyes are so easily damaged.Safety glasses or goggles provide a minimum amount of eye protection.
12 Body No part of the body is safe from injury in lab accidents. Suitable protective clothing that fits properly helps to prevent and reduce injuries.There should be no cuffs, strings, or ties for machinery to catch.
13 FeetLeather shoes with steel toes are recommended when working in the agricultural mechanics lab.Shoes should also have a minimum top of 6-inches.This is to reduce the chance of any material falling down the shoe while working.
17 Planer A planer is sometimes known as a thickness or surface planer. The sharp knives in a planer dress the wood and reduce its dimension to a standard desired size.
18 Check all stock for defects and metallic devices before planning. Measure the thickest part of the stock and adjust the planer based on the measurements.The thickest adjustment for the planer should only be 1/8 inch less than the thickest part.Never adjust the planer more than 1/8 inch at a time.
19 Stock must be a least 14 inches long before being planed on the tabletop planer. Allow the planer to come up to full speed before beginning your first pass.Boards of different thicknesses should never be planed at the same time.If the stock jams or sticks in the planer, you are to turn the machine off and notify the instructor.
20 Band SawA band saw uses a long continuous blade that moves between guides, pulleys, and wheels.Band saws are used to make curved and straight cuts in the wood.
21 The size of the saw is determined by the diameter of the two large wheels. Example a saw with 16-inch wheels would be known as a 16 inch band saw.Pull the stock towards you, it could cause the blade to jump off the track.
22 Keep your hands and fingers several inches from the side of the blade.
23 Use ‘relief cuts’ on tight curves to avoid breaking the blade.
24 Never back material out of a long cut until power has been turned off and the motion of the blade has stopped.
25 If the blade comes out of the guides or breaks, stop the machine immediately by turning off the power.Do not open the access door to the machine until the wheels have come to a complete stop.Have the instructor reposition or install a new blade.
26 Saber SawA saber saw a portable electric- powered saw with a small ridge blade that may be used to cut circles, curves, and holes in wood.
27 Before using a saber saw, be sure the blade is firmly in place. Adjust the base for thickness of the material being cut.Stock being cut should be clamped to the table before you start cutting.
28 Miter SawA miter saw is used for cutting wood materials, especially small pieces of trim, at precise angles to assure good fit.The angles of cut range from degrees.
29 Put one hand on the handle and use the other to hold the material against the fence that is being cut.Stand to the side of the path of the saw blade.Be sure hands and arms are not in the line of the cut.Carefully lower the saw onto the material to be cut.
30 After cutting, allow the saw to raise, turn off the switch, and wait until the saw has stopped turning before taking your hands off the handle and moving the material that was cut.The saw head should be locked back and down when you are finished making a cut.This saw should be unplugged when you finish using it.
31 Belt/ Disc SanderA sander is used to smooth and shape materials and prepare them for painting or other purposes.
32 Wood should be sanded with the grain in a back and forth motion. Stock should never be laid on the belt while it is being turned on.
33 Table SawWith a tilting arbor saw , the blade is tilted so that sawing at an angle is possible.The tilting arbor saw is more popular because it is easier and safer to use.
34 Many accidents result from the incorrect use of a table saw. When using a table saw, do not stand directly in front of the saw blade.The saw may “kick” the board back toward the operator.
35 Always use a guard for the blade of a saw. Failure to use a guard may mean the loss of a finger, hand, or your life.When ripping narrow pieces of stock use a push stick instead of your hands.
36 The height of the saw should be set 1/8 to ¼ inch higher that the thickness of the stock. Do not feed the wood to fast that the cut is rough.Sawing to slowly causes the saw blade to heat and become dull.