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OPERATION MANUAL
5.4 SETTING UP FOR TAPPING
The Hafco Metalmaster DMF-44 is fitted with a Tapping mode. When selected the spindle turns
clockwise until it comes up against a micro switch in the depth stop which will bring the
spindle to a complete stop and then reverse the spindle. The feed of the tap is by hand using
the course down feed with handles.
To Use The Tapping Mode:
1. DISCONNECT MACHINE FROM POWER!
2. Install the tap, into a tapping chuck and bring it
down until it touches the top of the hole to be
tapped. Select the maximum tapping depth on the
depth gauge, (Fig. 5.8) making sure that the tap does
not bottom out.
3. Adjust the depth stop by turning the knurled knob
(A in Fig. 5.9) accordingly.
4. Apply some tapping fluid to the contact point of the
tap and to the workpiece.
5. Connect the machine to power.
6. Select the “tapping” mode with the drilling/tapping
switch on the control panel (Fig. 5.10)
7. Select the appropriate spindle speed. Speeds vary
according to the type of material of the work piece,
the tap, and the procedure. There are several
on-line resources to choose from for calculating the
spindle speed.
8. Using the course feed handles, slowly lower the tap
into the drilled hole, applying enough pressure for
the tap to start cutting.
NOTE: A tapping chuck is required to use the
tapping function (Order Code T004
B
)
F
ig
. 5.8
a
F
ig
. 5.9
F
ig
. 5.10
Содержание Metalmaster DMF-44
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