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Insert the 1.5 mm hexagon key wrench through the hole located on top of the
chuck tool. Insert the key wrench as far as it will go into the chuck. The key
wrench will come in contact with the micro adjustment screw at the very bottom
of the chuck. Keep the chuck tool still and turn the wrench counter-clockwise;
At this point, the chuck is released and can be removed by turning the key wrench
counter-clockwise. Having removed the chuck with the hexagon key wrench,
loosen the micro adjustment screw even more to have a greater field of
adjustment;
If simply adjusting the chuck, place the chuck back into the front end
housing of the micromotor after having cleaned it with a cloth. If replacing
the chuck, use the new chuck.
To adjust the chuck properly, it is necessary to use a bur with a shaft that is in
good condition;
After having placed the chuck back into the front end housing of the micromotor,
place the chuck tool over the chuck. Insert the bur into the chuck through the hole
located at the top of chuck tool. Secure the chuck and bur into place by turning the
chuck tool clock-wise, making sure that the bur is held firmly in place. This is the
position of maximum adjustment;
At this point, turn the chuck counter-clockwise by a half turn to create a margin
of clearance. Remove the bur and chuck tool;
Turn the front end of the micromotor counter clock-wise. Reinsert the bur into
the chuck. Turn the front end of the micromotor clock-wise to lock the bur in
place;
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