
10
6. Using the Green Pointer X2
Connect the machine to the power
supply.
Adjust the machine speed according to
the recommendations below.
Select the electrode clamp to suit the
tungsten to be ground.
6.1 How to operate Green Pointer X2
Place the tungsten electrode in the
electrode holder (5) with approximately
35 mm protruding.
Push the electrode clamp into the depth
setting gauge (12) until the clamp is
located into the allen screw (15), turn
clockwise to tighten.
Put the electrode holder through the
electrode holder guide (6) until the
tungsten is touching the diamond wheel,
this operation can be observed through
the inspection cover (29).
Start the motor (1.1).
6.2 How to grind the electrode
Turn the electrode holder, whilst pushing
the electrode against the diamond wheel.
Do not push too hard in order to avoid
blueing of the electrode. This can be
viewed through the inspection cover
The grinding is completed when the stop
of the electrode holder (14) touches the
end face of the electrode holder guide
(6).
Switch off the motor and remove the
electrode holder when the motor has
come to a complete stop.
Place the electrode holder in the depth
setting gauge. Turn anti clockwise and
the electrode can be removed.
Note:
Do not press too hard at the electrode holder
before the stop (14) has been reached.
Remember to put the electrode holder into
the grinding chamber before you start the
machine and to keep it there until the motor
has stopped. (Otherwise grinding dust may
come out of the chamber).
Recommended turning speed
Diameter of the electrode 1.0 mm 1.6 mm 2.0 mm 2.4 mm 3.2 mm 4.0 mm
Speed adjustment 3 3 2 2 1 1
7. Maintenance
Remove the plug from the power supply before
carrying out any maintenance or repairs.
7.1 Replacing the filter
The filter has to be changed when the
amount of dust makes it difficult to watch the
grinding process through the inspection
cover (29).
1. Loosen the allen screw (25.3) at the
filter housing (25).
2. Remove the filter cover (25.2).
3. Remove the filter cassette (26) and put
it into the plastic bag for disposal.
4. Insert a new filter cassette so that the
rubber seal is sitting tight to the grinding
head (2).
5. Mount the filter cover and tighten the
screw.
7.2 Replacing the diamond wheel
1. Remove the electrode holder (5).
2. Loosen the knurled screw (22)
3. Unscrew the electrode holder guide (14)
using the spanner (SW 17)
4. Remove the grinding chamber (10)
including the inspection cover (29).
5. Unscrew the nut retaining the diamond
wheel, using the spanners (SW14 &
SW13), two flats are located on the
motor spindle behind the diamond
wheel for this purpose.
6. Remove the diamond wheel.
7. Insert a new diamond wheel and
replace the retaining nut.
8. Replace the grinding chamber and
inspection cover
Replace the electrode holder guide
9. If the grinding head chamber is too dirty
it can be cleaned with an alkalised
solution and rinsed with water. If doing
so remember to remove the filter
first