Drilling
The basic operation when drilling is:
1.Line up your drill bit with the intended hole location.
2.Clamp the workpiece to the table.
3.Turn the drill press ON.
4.Use the downfeed handles to move the spin- ning drill bit into the workpiece.
For safe operation and optimum results when drilling, follow these guidelines:
CLEAR CHIPS: Raise the drill bit often to clear chips and cool the drill bit. This will ease the work of the drill press motor and extend the life of your drill bits.
SECURE WORKPIECE TO TABLE: Clamp the workpiece to the table or in a vise that is secured to the table before drilling.
PROTECT THE TABLE: Protect the table by plac- ing the workpiece on scrap wood when through drilling. Also, use the depth stop to ensure that the drill bit goes no deeper than necessary.
USE CORRECT SPEEDS: Use the correct speed for the diameter of the drill bit being used and the type of material being drilled. Refer to Choosing Speeds on Page 19 to select the correct speed for your application.
ADJUST SPEED TO DIAMETER OF BIT: Reduce speed when using large diameter bits; increase speeds when using smaller diameter bits.
ADJUST SPEED TO MATERIAL: Use slower speeds with harder materials. Softer materials can be drilled with higher speeds. However, some materials, such as plastics, can melt at high speeds.
APPLY LUBRICANT: Use some form of lubricant on all materials except wood or cast iron. Refer to Lubrication Suggestions on Page 19 to find the correct lubrication for your application.
DRILL ACCURATELY: Mark the hole location with a center punch before drilling to prevent drill bit wandering and to ensure accurate placement of holes. Consider using a
If the workpiece is not clamped down, the operator's hand could get pulled into the bit or the workpiece can be thrown with great force. Clamp the workpiece to the table before drilling.
Quill Travel
The Model G9749 has both a rapid and a fine downfeed control for quill travel. Quill travel can be set to a specific distance using the depth gauge and depth stop.
To use the quill lock:
1.To lock the quill in place, rotate the quill lock lever (see Figure 18 on Page 21) clockwise and hand tighten.
2.Unlock the quill by rotating the quill lock lever counterclockwise.
Note: The quill has a strong tendency to trav- el upward quickly if not controlled. Use the downfeed control to manage the quill move- ment when the quill is not locked in place. Also, for maximum rigidity, the quill should not be extended any more than necessary to drill the hole. Adjust the table height if greater distances are needed.
