6
4.
Precautions
A.
Before operating the Marathon, be sure
that the Voltage Selector Switch is set to
the voltage you will be running the unit
from.
B.
Use Marathon in a suitable location in
temperature of 32-104°F (0-40°C). Using
it in an excessively dusty, warm or humid
location can damage the controller.
C.
Ensure the controller ventilation vents are
not obstructed.
D.
Before operating the handpiece, be sure
the Collet Release Ring is in the “S” secure
position. If the handpiece is in the “R”
release position, the motor will stall and
could possibly be damaged.
E.
Do not attempt to change tools or rotate the
Collet Release Ring while the handpiece
is running. This action will stop the motor
abruptly, causing damage of parts and
possible motor damage.
F.
Avoid stalling the motor by pushing too hard
on the workpiece or exceeding the torque
capacity of the handpiece motor. This will
cause excessive carbon brush and motor
armature commutator wear.
G.
Do not exceed the maximum rotation
speed (RPM) specified by the manufactur-
er/distributor of the tool being used.
H.
Handpiece collets are manufactured to
close tolerances. Use tools with a shank
size that corresponds to the collet being
used.
I.
Insert a tool fully into the collet until it bot-
toms the back of the collet. Using a tool not
fully inserted is dangerous and can cause
the tool to vibrate or the tool shank to bend.
J.
Never use tools out-of-round or with bent
shanks.
K.
Periodically check to see that the collet is
fully tightened. A loose collet will cause the
handpiece to run slower.
L.
Do not use the handpiece in water or oil,
and never allow any oil, water or other fluids
to enter the handpiece. Avoid having dirt or
excessive wood dust enter the inner casing.
Failure to keep foreign matter out of the
inner casing will cause damage to the ball
bearing assemblies. See Maintenance (p.
7) for cleaning instructions.
M.
Before operating the Forward/Reverse
Selector Switch turn the controller to OFF.
Make the selection, then turn the unit back
ON.
N.
Take care not to drop the handpiece.
Handpiece bearings may be damaged and
tool shanks bent.
O.
To avoid electric shock, never plug or
unplug the Power Cord with wet hands.
P.
Do not subject the handpiece cord to sharp
bending or rough treatment. This can cre-
ate an open wire or damage the cord con-
nection pins.
Q.
While operating the handpiece, wear pro-
tective safety glasses or goggles at all
times. Eyewear should meet ANSI Z87.1
and GSA Z94.3 standards.
R.
When not in use, put the handpiece in the
rubber cradle rest. It is also recommended
to put a tool or Test Pin in the collet when
not using the handpiece.
5.
Maintenance
Ensure the Marathon controller ventilation vents
(black panel) are not covered or obstructed. If
compressed air is available, use it on the vents.
If air is not available, blow into the vents and
use a soft, dry brush to remove excess dust.
Periodically remove excessive dust that accu-
mulates in the Carbon Housing Cover (Part
174). To remove this dust, unscrew the Cover
in clockwise direction. Blow air into the Cover
and the Armature Cooling Vents (fig. 7). Dust
can also be removed with a soft, dry brush. If
necessary, use a clean cloth moistened with
detergent to clean the Carbon Housing Cover
inside and out. Do not use any volatile liquid as
a cleaner (i.e., paint thinner or alcohol).
Periodically cleaning the inner threads of the
handpiece collet will ensure easy collet removal
when changing from one to another. Twist a
clean rolled-up piece of tissue paper in and out
of the collet threads.
Do not lubricate your handpiece. All handpiece
bearings are sealed and permanently lubricated.
Contact Gesswein for assistance in the event
of a fault or needed repair. Gesswein offers a
standard mechanical handpiece warranty of 90
days for parts subject to wear and 6 months for
the balance of the handpiece. The controller is
covered by a full one-year warranty from date
of purchase.
#890-2063/1014
201 Hancock Ave. Bridgeport, CT 06605, USA
orders 800.243.4466
| 203.366.5400 | fax 203.366.3953
email [email protected] |
www.gesswein.com
