5
If the collet cannot be loosened by hand using
the Collet Wrench, additional torque may be
required. To use the Collet Wrench, place
the triangular cutout in the wrench over the
collet (see Fig. 3), and turn counterclockwise
to loosen and clockwise to tighten the collet.
If more torque is required, hold the handpiece
with the Collet Wrench secure on the collet,
and tap the wrench with a solid tool (see
Fig. 3a) in a counterclockwise direction. This
procedure will loosen the collet, which can
then be removed by hand.
If the handpiece collet is so tight that the
above procedure will not loosen it, then
remove the Head Assembly from the Motor
Assembly. This can be done by grasping the
Motor Connecting Ring (see Fig. 1) and pulling
upward. Insert the Chuck Joint Wrench (see
Fig. 3b) into the Nylon Coupler (#510-0151),
hold the Head Assembly and Chuck Joint
Wrench securely in one hand, and with the
Collet Wrench in place on the collet, loosen
in a counterclockwise direction (for parts
drawing, refer to page 11.)
After a collet is replaced, be sure that the
Collet Release Ring is rotated to its full “S”
position and that the collet rotates freely
when turned by hand. If the collet does not
rotate freely, it is not fully seated in the Head
Assembly, and you must repeat the removal-
replacement procedure.
Blank Bar
R
Collet
Wrench
Collet
Release
Ring
Fig. 3a
S
R
Collet
Wrench
Tighten
R
Loosen
Fig. 3a
Fig. 3b
6
4.
Operating Procedure with Power Hand 3 Controller
With your rotary handpiece fitted with a selected tool, connect the Gesswein
Power Hand 3 Controller to an electrical supply and the handpiece to the
A motor or B motor output socket.
Put the Controller Main Switch to the “ON” position, which lights up the LED
lights of controller. Then select the A motor or B motor button depending
on which socket the handpiece is plugged in to. Check to make sure the
desired rotational direction is selected on the Fwd./Rev. button. Then press
the START/STOP button to supply power to your handpiece. RPM speed is
adjusted by the round dial in the center. It is always best to start at minimum
RPM and then increase to the desired RPM speed.
A Load Indicator light is located on the front panel of the PH3 Controller with
8 steps of LED lights from green to yellow to red. The display lights up as
force is being applied to the handpiece. For best results and long life, stay
within the green.
