ELECTRICAL REQUIREMENTS
BEFORE CONNECTING THE MACHINE TO THE POWER SOURCE, VERIFY THAT THE VOLTAGE OF YOUR POWER SUPPLY CORRE-
S
PONDS WITH THE VOLTAGE SPECIFIED ON THE MOTOR I.D. NAMEPLATE. A POWER SOURCE WITH GREATER VOLTAGE THAN
NEEDED CAN RESULT IN SERIOUS INJURY TO THE USER AS WELL AS DAMAGE TO THE MACHINE. IF IN DOUBT, CONTACT A QUAL-
I
FIED ELECTRICIAN BEFORE CONNECTING TO THE POWER SOURCE.
T
HIS TOOL IS FOR INDOOR USE ONLY. DO NOT EXPOSE TO RAIN OR USE IN WET OR DAMP LOCATIONS.
CONVERTING THE MOTOR TO 220V
Note: When converting motor voltage on a machine that is
equipped with a magnetic switch, the switch contactor
must also be changed out for one made for the appropri-
ate voltage, as well as the thermal relay/circuit breaker
and “power in” indicator light (if applicable). Failure to
make these necessary modifications to the switch will lead
to malfunction and permanent switch failure.
Should you need to convert your machine’s motor from
110V to 220V power, there is an electrical schematic
drawing on the inside of the motor cover plate. Unless
you are a qualified electrician, we do not recommend
attempting this conversion on your own. If you choose
to do so, you may risk serious personal injury, damage
to the motor and voiding the warranty of your machine.
We suggest you ask your local General International
distributor to recommend qualified electricians in your
area (or perhaps one of their own technicians) who
can make this conversion properly and safely.
EXTENSION CORDS
If you find it necessary to use an extension cord with your
machine, use only 3-wire extension cords that have 3-
prong grounding plug and a matching 3-pole recepta-
cle that accepts the tool’s plug. Repair or replace a
damaged extension cord or plug immediately.
Make sure the cord rating is suitable for the amperage
listed on the motor I.D. plate. An undersized cord will
cause a drop in line voltage resulting in loss of power
and overheating. The accompanying chart shows the
correct size extension cord to be used based on cord
length and motor I.D. plate amp rating. If in doubt, use
the next heavier gauge. The smaller the number, the
heavier the gauge.
6
In the event of an electrical malfunction or short cir-
cuit, grounding reduces the risk of electric shock. The
motor of this machine is wired for 110V single phase
operation and is equipped with a 3-conductor cord
and a 3-prong grounding plug A to fit a grounded
type receptacle B. Do not remove the 3rd prong
(grounding pin) to make it fit into an old 2-hole wall
socket or extension cord. If an adaptor plug is used C,
it must be attached to the metal screw of the recepta-
cle.
Note: The use of an adaptor plug is illegal in some
areas. Check your local codes. If you have any doubts
or if the supplied plug does not correspond to your
electrical outlet, consult a qualified electrician before
proceeding.
CIRCUIT CAPACITY
Make sure that the wires in your circuit are capable of
handling the amperage draw from your machine, as
well as any other machines that could be operating
on the same circuit. If you are unsure, consult a quali-
fied electrician. If the circuit breaker trips or the fuse
blows regularly, your machine may be operating on a
circuit that is close to its amperage draw capacity.
However, if an unusual amperage draw does not exist
and a power failure still occurs, contact a qualified
technician or our service department.
GROUNDING INSTRUCTIONS
TABLE - MINIMUM GAUGE FOR CORD
AMPERE
RATING
TOTAL LENGTH OF CORD IN FEET
110 VOLTS 25 FEET 50 FEET 100 FEET 150 FEET
220 VOLTS 50 FEET 100 FEET 200 FEET 300 FEET
AWG
< 5
------->
18 16 16 14
6 TO 10
------->
18 16 14 12
10 TO 12
------->
16 16 14 12
12 TO 16
------->
14 12 * NR * NR
* NR = Not Recommended
A
B
C
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