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6. Press the “GLOW PLUG” button to pre-
heat the cylinders per the following table:
Never press the Glow Plug button continuously for
more than 20 seconds.
7. Release the “GLOW PLUG” button and
press the “START” button to crank the
engine. Release when the engine starts.
8. Check that the indicator lights are off. If not, imme-
diately stop the engine and investigate the indicat-
ed problem.
9. Allow the engine to warm up at low idle speed for
several minutes before applying a load and/or
switching to high idle. Allow a longer warm up time
in cold weather.
NOTE: If the engine fails to start in 60 seconds or
stops running, the “ENGINE” switch must be
switched to “OFF” and then switched back to “ON”
before attempting to restart the engine. This resets
the engine protection circuit.
COLD WEATHER STARTING AND
OPERATION
The Kubota engine used in the Ranger 300 can be
started in temperatures as low as 5°F (-15°C). At tem-
peratures below 23°F (-5°C), it is recommended that
No. 1D diesel fuel be used in place of No. 2D. Allow
engine to warm up before applying a load or switching
to HIGH idle.
STOPPING THE ENGINE
1. Remove all welding and generator power loads and
let the engine cool by running it for several minutes
at low idle.
2. Stop the engine by placing the Engine Switch in the
“OFF” position. This turns off the fuel solenoid.
You can also stop the engine by turning off the fuel
valve located on the fuel filter housing.
BREAK-IN PERIOD
Any engine will use a small amount of oil during its
“break-in” period. For the diesel engine on the
RANGER 300, break-in is about 50 running hours.
Check the oil every four hours during break-in.
Change the oil after the first 50 hours of operation,
every 100 hours thereafter. Change the oil filter at the
second oil change.
During break-in, subject the RANGER 300 to moderate
loads. Avoid long periods running at idle. Before
stopping the engine, remove all loads and allow the
engine to cool several minutes.
TABLE B.1
TYPICAL RANGER 300 FUEL CONSUMPTION
* DLX model only
OPERATION
B-10 B-10
RANGER 300 D AND 300 DLX
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Ambient Temperature
Above 50°F (10°C)
50°F (10°C) to 23°F(-5°C)
Below 23°F (-5°C)
Pre-Heat Time
NOT REQUIRED
Approximately 5 seconds
Approximately 10 seconds
CAUTION
Low Idle - No Load
2000 RPM
High Idle - No Load
3700 RPM
AC CC Weld Output
300 Amps @ 25 Volts
DC CC Weld Output
300 Amps @ 25 Volts
DC CV Weld Output
300 Amps @ 28 Volts*
Auxiliary Power
12,000 kVA
.30 gallons/hour
(1.0 liters/hour)
.60 gallons/hour
(2.2 liters/hour)
1.1 gallons/hour
(4.2 liters/hour)
1.2 gallons/hour
(4.6 liters/hour)
.90 gallons/hour
(3.6 liters/hour)
1.3 gallons/hour
(4.9 liters/hour)