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B-6
OPERATION
B-6
NOTE: DO NOT allow the RANGER 300 to run out of
fuel. If it does, you will have to bleed the injec-
tion system. See the Maintenance section of
this manual and the Engine Operators Manual
for instructions on bleeding the fuel injection
system.
USE DIESEL FUEL ONLY
Purchase diesel fuel in quantities that will be used
within 30 days, to assure freshness.
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STARTING THE ENGINE
Remove all loads connected to the AC power recepta-
cles and the welder before starting the diesel engine.
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1. Open the engine compartment door and check that
the fuel shutoff valve located above the clear plas-
tic fuel filter housing is in the open position (lever in
the vertical position). See Figure B.3.
FIGURE B.3
2. Check for proper level of coolant in the plastic
reserve overflow tank. The level should be
between the full and the low marks.
3. Check for proper oil level on the oil dipstick. Close
engine compartment door.
4. Set “IDLER” switch to “AUTO”. /
5. Set the “ENGINE” switch to “ON”. Observe that
both the oil pressure light and battery charger light
are on. Check the fuel gauge to make sure that
there is an adequate fuel level (NEVER ALLOW
THE RANGER 300 D/DLX TO RUN OUT OF
FUEL).
6. Press the “GLOW PLUG” button to pre-heat
the cylinders per the following table:
RANGER 300 D AND 300 DLX
CAUTION
CAUTION
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
Never press the Glow Plug button continuously for
more than 20 seconds.
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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.