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GENERAL DESCRIPTION
The RANGER 300 is a diesel-engine driven, multi-
process AC and DC arc welder and AC power gener-
ator for commercial and residential applications. As a
generator it can supply up to 12,000 continuous watts
of 120/240 volt, 60 Hz, single-phase AC power to
operate AC power tools, battery chargers, and light-
ing. It can also be used to provide standby power. As
a welder it provides 300 amps of AC current for weld-
ing with AC stick electrodes or 300 amps of DC cur-
rent for DC stick welding. The RANGER 300 can also
perform AC/DC TIG welding and DC semiautomatic
wire feed welding.
The engine used on the Ranger 300 machines is the
Kubota "Super Five" water-cooled, 3 cylinder DH905
engine. The DH905 has an offset piston design with
built-in steel strut and a more rigid crankcase. The
Kubota "Three Vortex Combustion System" gives
higher power output, lower fuel consumption, lower
noise, and cleaner exhaust. The "Super Glow System"
gives rapid pre-heating for easy starting in cold weath-
er. The large oil sump adds to the long life of this
engine. The high capacity 30 amp alternator gives fast
charging of the 495 CCA battery. The engine is
extremely smooth and has very low vibration, even at
low idle speed.
The Ranger 300 machines are housed in a heavy
gauge steel case that is protected by a durable pow-
der paint finish. The case is completely insonorized for
remarkably quiet operation. An easy to open hinged
door allows access to the engine for single side ser-
vice. The welder alternator has all copper windings
and a high temperature insulation system that includes
three coats of electrical grade varnish.
DESIGN FEATURES - ALL MODELS
FOR WELDING
• Excellent AC and DC constant current output for
stick welding applications.
• 40 to 300 amps constant current output with seven
range settings.
• Excellent semi-automatic wire feed welding on con-
stant voltage output range(s).
• TIG welding - full range on DC and up to 250 amps
on AC.
• 100% duty cycle rating on all output ranges.
• Remote control capability standard on all models.
Amphenol receptacle for easy connection of Lincoln
remote control accessories.
FOR AUXILIARY POWER
• 12,000 watts of 120/240 volt 60Hz AC auxiliary
power.
• Power for tools, lights, electric pumps and for
standby emergency power.
• Ability to drive a 2 HP motor (provided it is started
under no load).
• Two 15 amp industrial grade 120 volt duplex recep-
tacles for up to 60 amps of 120 volt power.
• One 50 amp 120/240 volt dual voltage receptacle
for up to 50 amps of 240 volt auxiliary power.
Allows easy connection to premises wiring.
• Four 15 amp circuit breakers for 120V duplex
receptacles and two 50 amp circuit breakers for
240V receptacle.
• Ability to weld and have AC power at the same time
(within machine total capacity).
• Compatible with GFCIs (ground fault circuit inter-
rupters).
OTHER FEATURES
• Insonorized for extremely quiet operation [(99LW(A)
and 74 db(A) @ 23 ft (7m)].
• Kubota 3-cylinder, liquid cooled, diesel engine.
Designed for long life, easy maintenance, excellent
fuel economy and low noise.
• Engine always starts in low idle for minimum engine
wear in cold weather.
• Manual operated lift pump for easy priming of
engine if it runs out of fuel.
• Engine protection system shuts engine down on low
oil pressure or over temperature of coolant.
• Indicator lights for low oil pressure, over tempera-
ture and battery charger low output.
• Engine Hour Meter standard on all models.
• Engine coolant recovery bottle eliminates air in radi-
ator and makes it easy to check coolant level.
• Battery with 495 cold cranking amps.
• Straight through ventilation - cooling air for welder
alternator enters front of machine and is exhausted
out rear.
• Large capacity 10 gallon (38 l) fuel tank.
• Automatic idler reduces engine speed when not
welding or drawing auxiliary power. Machine
always starts in low idle. Reduces fuel consumption
and extends engine life.
• Compact size fits many smaller trucks.
• Single side engine service with easy to open access
door.
• Copper alternator windings and high temperature
insulation for dependability and long life.
• Powder painted case and base for outstanding cor-
rosion protection.
OPERATION
B-3 B-3
RANGER 300 D AND 300 DLX
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