Summary of Safe Operating Procedures for Mortising Machines (printable version)
Make all adjustments with the power off.
Adjust the auger bit so that it extends 1/16″ to 1/8″ beyond the end of the chisel.
If you are attempting to chisel completely through the stock, place a wood pad beneath the stock so the chisel will not damage the table.
Always clamp the stock securely to the table. Never attempt to hold the stock down with your hand.
Manually turn the bit spindle around 360 degrees prior to turning on the power.
Be sure to tighten the bit and chisel firmly. Always remove the chuck key before turning on the power.
Keep your hands at least 4″ away from the chisel while the power is on.
Keep the work area clean and free of wood chips.
Never use excessive force to press the mortising chisel and bit into the stock.
If performing deep cuts, back out periodically to clean out the hole, and allow the chisel and bit to cool off.