1. Woodworking with Power
Woods
Unit 1: Safety

2. Safety Precautions with Machines
Wearing safety glasses
Ensuring the teeth of saw blades are pointing down
Making sure that boards are free of paint, nails and other foreign materials
Firmly gripping hand power tools
Asking for help with large pieces of materials
Clamping work down to a bench when sanding or drilling
Keeping work area free of clutter and clean
Tie back hair
Keep loose clothing (like long sleeves) rolled up
See p. 188 Ag Mech book

3. Jig Saw Checking blade tension before cutting
SAFE
UNSAFE
Checking blade tension before cutting
Cutting plastic at 750 RPM
Insert the sabre blade in the lower chuck only
To adjust blade tension sleeve after inserting a jeweler’s blade
Attempting to turn curves too short for the blade
To use the saw blade having 32 teeth per inch for general purpose sawing
To operate the saw with the guide post hold-down foot 1/8”-1/4” above the work
To make adjustments when the saw is running
To use any speed depending on time to complete operation
To talk to others while sawing

4. Table Saw Safe Unsafe Working on a littered floor
Checking the width of the cut at the front and back of the blade when ripping
Not talking while sawing
Not using the machine without instruction or permission
Using a push stick to rip narrow stock
Making sure the teeth of the saw blade are pointing toward the direction from which the wood will be fed.
Working on a littered floor
Removing scraps while the saw is running
Removing guards
Extending saw blades as far as possible through stock
Sawing warped or twisted stock
Free hand sawing
Standing directly in line with the saw blade

5. Finishing Sander Safe Unsafe Securely tighten sand paper clamps
Lift machine from work before turning off
Tear or cut sandpaper sheets to size
Hold the sander with one hand and the work with the other or clamp
Clean the sander before storing
Disconnect from power source before changing sandpaper
Placing excessive pressure on the machine to make it cut faster
Starting the sander while it is sitting on the piece of work
Using torn or worn sandpaper
Setting sander on the edge of the table or bench
Sanding across the grain
Cutting the 3rd prong from the ground plug