Darex LEX150 User manual

47
Congratulations on the purchase of your Darex
XT-3000 Countersink Attachment. This fixture
comes with 2 V-40 double angle collets and is
used in conjunction with the Darex XT-3000 X-Y
Attachment.
By now you are familiar with the ‘quick disconnect’
feature of your XT-3000. Begin by removing the
current sharpening
fixture and replacing it
with the X-Y table.
Secure it in place by
rotating the ‘Docking
Lever’ clockwise. In a
similar manner, lock
the Countersink
Attachment to the top
of the machine.
It is now necessary to
determine the shank
diameter of the tool that will
be sharpened and place the
corresponding collet into the
Countersink Attachment.
To do so
slowly rotate
the spindle
clockwise until
the Spindle
Lock engages
the spindle.
Now unscrew the
Draw Tube assembly.
Place the correct collet
in the end of the Draw
Tube and replace the
Draw Tube assembly
and tighten 3 or 4
revolutions. Should
you need a collet size other than the ones
provided, you may order them from Darex
Corporation. (1-800-547-0222)
Slide the cutting tool
into the spindle leaving
approximately 1” or
more of the tool
exposed. Loosen the
Alignment Thumb
Screw and rotate the
Alignment Arm
assembly around until
the dowel pin
intersects both the
cutting edge and the
heel simultaneously.
Tighten the Alignment
Thumb Screw. Rotate
the Draw tube
assembly clockwise to
tighten the tool in the
spindle. Return the
Alignment Arm to its
original position and
release the spindle lock
pin by pulling up and
turning the pin 90°.
The cutting tool is now
oriented to the spindle
cam and is ready to be
sharpened.
Countersink Instructions
LEX150
Pivot Lock Knob
X-Axis Knob
Y-Axis Knob
Thumb Screw
Alignment
Arm
Spindle Lock

48
To sharpen the tool, determine which angle the
tool will be sharpened at. To adjust the X-Y table,
loosen the Pivot Lock Knob and swing the table to
that angle. Tighten the Pivot Lock Knob.
Remove the
Countersink
Attachment from
the top of the
machine and
place it on the X-Y
Table. Again,
rotate the
Docking Lever
clockwise to secure the fixture. Turn the machine
ON.
Using both the X and Y axis feed knobs, carefully
position the cutter into the grinding wheel.
Once the
tool touches
the grind
wheel, begin
to rotate the
spindle in a
clockwise
direction
slowly
feeding the
cutter into the wheel. Once the desired amount is
ground off, continue rotating 1 or 2 more
revolutions to “spark out” the cutter. While still
rotating the spindle, use one of the feed axis
knobs to position the cutter safely away from the
grinding wheel. Loosen the Docking Lever and
return the Countersink Assembly to the top of the
XT-3000 to remove the cutter. The sharpening is
now complete.
Y-Axis Knob X-Axis Knob
Pivot Lock Knob

49
Countersink Attachment

50
Counter Sink Attachment LEX150
SA16823TA Alignment Assembly
PP16823TF Alignment Thumb Screw
PP16820BF Alignment Arm
PP16312FF 1/8"x2" Dowel pin
PP08558FF Washer
SA16860BA Swing Arm Assembly
PP16860BF Swing Arm
PP06136FF Dowel Pin
PP08560LF Bearing
SA16830TA
PP16830TF Indexing Pin Bushing
PP08041TF Indexing Pin
PP08046TF Indexing Pin Knob
PP08045TF spring
PP08376FF roll pin
CS Spindle lock assy.