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B-1
OPERATION
RANGER 300 D AND 300 DLX
B-1
GENERAL DESCRIPTION
The RANGER 300 is a diesel-engine driven, multi-
process AC and DC arc welder and AC power genera-
tor 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 crank-case. 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 weather. 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 vibra-
tion, 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 stand-
by emergency power.
• 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 recep-
tacles and 2-50 amp circuit breakers for 240V recep-
tacle.
• Weld and have AC power at the same time (within
machine total capacity).
• Compatible with GFCI's (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 and excel-
lent 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 temperature
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.