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All machine adjustments & maintenance shall
only be done after the machine’s power switch
has been put in the “OFF” position & the
power supply cord completely disconnected.
WARNING: Always make sure the unit is
connected to a properly grounded electrical
outlet. Failure to comply with this warning
could result in serious bodily injury or death!
WARNING: DO NOT operate on low voltage!
Low voltage causes loss of power, motor
overheating, and possibly motor winding
burnout. Voltage should be checked at the
motor while it is operating.
• Make sure that the extension cord length is
properly sized for the motor used on this saw.
See the chart in Section 2 of this document.
• Single phase 1-1/2 hp motors are factory wired
for 115 volt service and furnished with the correct
NEMA configuration Plug (LL) [See FIG. 1] on the
motor pigtail. See Table 1 below for the proper
matching connectors:
Table 1
Electric Motor Plugs & Connectors
Motor Wired for
Voltage
Motor Pigtail
Plug
(NEMA No.)
Connector
Required
(NEMA No.)
1-1/2 HP 115 V L5-20P L5-20R
1-1/2 HP 230 V L6-15P L6-15R
• For operator convenience, the 1-1/2 hp motor has
a Voltage Change Switch (J) [See FIG. 5] that allows
operation on a 115 VAC or a 230 VAC power source.
The Voltage Change Switch (J) is mounted on the
terminal box of the motor and must be set to either
115, or 230 Volt, to match the voltage supply. Make
sure that the Voltage Change Lock Bolt (TT) is in
position. It will prevent the Voltage Change Switch
[See FIG. 5] from being accidentally moved into the
wrong position.
WARNING: The Voltage Change Switch (J)
position is never to be changed while the
motor is running. Make sure that the Voltage
Change Lock Bolt (TT) is in position. It will pre-
vent the Voltage Change Switch from being
accidentally moved into the wrong position.
• Local electrical codes may require changing the plug
on the motor to the proper NEMA connector to
match the voltage supply.
• The operator must use plug and receptacle
connectors on all power cords (machine and
extension), designed and approved for the selected
motor voltage and equal to or greater than the
rated motor full load current.
• The service receptacle, branch circuit conductors,
and overcurrent protection shall have an ampere
rating equal to or greater than the motor full load
current. According to the National Electrical Code if
the branch circuit has two or more receptacles, each
receptacle has a maximum load ampere rating
equal to 80% of the receptacle’s rating.
When this machine is set up to operate on 115 VAC, the
motor has a full load rating of 19 amperes. This means
that when operating this machine on 115VAC, it can only
be used on a branch circuit with ONE 20-ampere rated
receptacle. If the circuit has two or more 20-ampere
receptacles, they each have load rating of 16 amperes
and cannot be used by this machine.
• The extension cord(s) used must have a voltage rating
greater than the selected voltage (115 or 230) and be
sized for the rated motor full load amps (as marked
on motor specification plate).
•
Good motor performance depends on proper voltage.
Extension cords that are too long and / or too small
reduce the voltage to a motor under load. Operating
below this minimum voltage will cause an increase
in motor current resulting in slow startup, and
overheating in the motor and controls. Sustained
operation under these conditions will result in
permanent damage to the motor and controls.
•
Long extension cords will probably have to be over
sized to minimize the voltage drop to the machine.
The size of the extension cord is dependent on the
total conductor length (all extension cords) & the
quality of the power source. The power cord size
shall be capable of supplying a minimum of 90%
of the motor nameplate voltage at the motor, when
the motor is running rated full load.
•
Make sure that the extension cord length is properly
sized for the motor used on this machine. Use exten-
sion cords NO SMALLER than the sizes indicated in
Table 2 below:
Table 2
EXTENSION CORD SIZE (Minimum)
MOTOR
HP
50 ft Long 75 ft Long 100 ft Long
120 V 230 V 120 V 230 V 120 V 230 V
1-1/2 # 12 # 14 # 10 # 14 # 8 # 14
• The branch circuit must have overcurrent protection
in the form of a circuit breaker or fuses. The purpose
of the overcurrent protection is to limit the current
in the branch circuit conductors and connections to
an amount equal to or less than their ratings. This
is to prevent overheating that can lead to damage