Migatronic GREEN POINTER X2 Guide De L'utilisateur page 9

Connection and start-up
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.
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).
Recommended turning speed
Electrode Ø (mm) 1.0
Speed adjustment 3
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).
1.6 2.0 2.4 3.2 4.0
3 2 2 1 1
Maintenance
Remove the plug from the power supply before carrying out
any maintenance or repairs.
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.
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.
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