Lincoln Electric CLASSIC 300 HE, Руководство оператора

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A-2
INSTALLATION
CLASSIC
®
300HE
A-2
GENERAL DESCRIPTION
The Classic
®
300HE is a heavy duty, engine driven,
DC arc welding power source, capable of providing
constant current output for stick welding or DC TIG
welding. This welder is wound with all copper coils,
rated at 300 amps/32 Volts, and provides other
Classic
®
features such as improved door latches and
stainless hinges. With the addition of the optional
K3964-1 Wire Feed Module™, the Classic
®
300HE
will provide constant voltage output for running the
LN-7, LN-23P, or LN-25 wire feeders. The optional
K924-4 Remote Control Kit, provides a remote control
rheostat for remote fine current and open circuit volt-
age adjustment. See Section C for description.
The Classic
®
300HE has an Electronic Engine
Protection System. In the event of sudden low oil
pressure or high coolant temperature, the engine
immediately shuts down. The Classic
®
300HE has a
current range of 40-350 DC amps with output ratings
as follows:
These units are also capable of providing 3 kVA of
120/240 volts of 60 cycle AC auxiliary power.
The Classic
®
300HE uses the Kubota D1503M indus-
trial water-cooled diesel engine.
DESIGN FEATURES
Control Panel
The welder controls are located on the upper control
panel at the exciter end of the machine. The welder
controls consist of a five step “Current Range
Selector” switch and a “Fine Current Adjustment”
rheostat. The lower control panel is equipped with a
“Start” button, an “Ignition” switch, an “Idler” control
switch, and a “Glow Plug” button for easier cold
weather starting.
The lower control panel also contains an engine tem-
perature gauge, a battery charging fault indicator, an
oil pressure gauge, a fuel/hour/led indicator gauge,
temperature gauge, For auxiliary power consists of
one 20 amp, 120VAC (5-20R) duplex receptacle with
GFCI protection and one 15 amp, 240VAC (6-15R)
receptacle, protected by 2 pole, 15 Amp breaker.
All Copper Windings - For long life and dependable
operation.
Engine Idler - The Classic ® 300HE is equipped with
an electronic automatic engine idler. It automatically
increases and decreases engine speed when starting
and stopping welding or using auxiliary power. A built-
in time delay permits changing electrodes before the
engine slows to its low idle speed. The “Idler” control
switch on the panel locks the idler in high idle position
when desired.
Auxiliary Power - 3.0 kVA of nominal 120/240V,
60Hz, AC. Output voltage is maintained within ± 10%
at all loads up to rated capacity. (See Optional
Features for Power Plug Kit.)
GFCI - Protects the 20 amp, 120V duplex receptacle.
See the Maintenance Section for detailed informa-
tion on testing and resetting of the GFCI.
120 V DUPLEx RECEPTACLE AND GFCI
A GFCI protects the 120V auxiliary power
receptacle.
A GFCI (Ground Fault Circuit Interrupter) is a device to
protect against electric shock should a piece of defective
equipment connected to it develop a ground fault. If this
situation should occur, the GFCI will trip, removing volt-
age from the output of the receptacle. If a GFCI is tripped
see the MAINTENANCE section for detailed information
on testing and resetting it. A GFCI should be properly
tested at least once every month.
The 120 V auxiliary power receptacle should only be
used with three wire grounded type plugs or approved
double insulated tools with two wire plugs. The current
rating of any plug used with the system must be at least
equal to the current capacity of the associated recepta-
cle.
250A @ 30V
300A @ 32V
100%
60%
RATED OUTPUT DUTY CYCLE