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Model G0756 (Mfg. Since 2/13)
Ta p pi ng M o d e
When in tapping mode, the spindle direction
can immediately alternate between forward and
reverse by pressing any of the three buttons at the
end of the downfeed handles. This feature is criti-
cal to back the tap out of a hole before it bottoms
out and snaps off, as well as clearing away waste
chips during the tapping process.
Pilot holes must be drilled prior to beginning any
tapping operation.
To use tapping mode:
1. DISCONNECT MACHINE FROM POWER!
2. Determine the maximum tapping depth with-
out bottoming-out the tap, and adjust the
depth stop accordingly.
3. Clamp the workpiece to the table.
4. Put on safety glasses and a face shield.
Select tapping mode, and turn the spindle
rotation switch counter-clockwise.
5. Install the tap, and apply tapping fluid to the
contact point of the tap and workpiece.
6. Connect the machine to power.
7. Select "tapping" mode with the drilling/tap-
ping switch
8. Select the appropriate spindle speed. Speeds
vary according to the material, bit, and proce-
dure. There are several online resources to
choose from for calculating spindle speed
9. Press the spindle start button.
10. Begin threading. Without disengaging the
tap from the threads, frequently alternate
spindle rotation by pressing any end button
to reverse spindle and eject chips from the
hole. Frequently removing chips will prevent
galling and tap breakage.
Coolant System
This machine comes with a coolant system for
use in drilling and tapping operations. This feature
promotes precision cutting and tool longevity.
To operate the coolant system:
1. Ensure there is a sufficient amount of clean
coolant in the reservoir (refer to Page 20 for
detailed instructions).
2. Aim the coolant nozzle at the contact area of
the workpiece and the work tool.
3. Turn the coolant pump switch on the control
panel to the ON position.
4. Regulate the coolant flow to the contact area
using the coolant ball valve shown in Figure
25.
Figure 25. Coolant ball valve.
Coolant Ball Valve