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Operation Section
6. Turn the engine start switch key (3) to the RUN
position in order to initialize the machine. The
machine will run a self test that must be completed
before you start the engine.
7. Before you crank the engine, depress the
accelerator control (pedal) slightly.
8. Turn the engine start switch key to the START
position in order to start the engine. Release the
engine start switch key when the engine starts.
Allow the engine to operate at low idle.
Note: Before you attempt to start the engine again,
move the engine start switch key to the OFF position for
10 seconds. This will allow the diagnostic system to
reset. Refer to the appropriate Service Manual for more
detailed information about the self test.
NOTICE
Do not crank the engine for more than 30 seconds.
Allow the starting motor to cool for two minutes before
cranking again.
Turbocharger (if equipped) damage can result, if the
engine rpm is not kept low until the engine oil light/
gauge verifies the oil pressure is sufficient.
Starting Below 0 °C (32°F)
If equipped with an air inlet heater (AIH) for cold
weather starting, do not use aerosol types of starting
aids such as ether. Such use could result in an
explosion and personal injury.
1. Follow Step 1 through Step 7 of the Engine
Starting procedure.
Illustration 160 g01117947
2. If the temperature is below the preset limit,
indicator (4) will illuminate on the instrument panel.
3. When indicator (4) goes out, turn the engine start
switch key to the START position in order to start
the engine.
4. Allow the engine to warm up for several minutes.
The actual time depends on the outside
temperature. Use the latter part of this time to help
warm up the hydraulic oil by operating the joystick
control in order to raise the boom and lower the
boom.
For starting below -18°C (0°F), the use of additional
cold weather starting aids is recommended. Any of the
following may be required.
• A coolant heater
• A fuel heater
• An oil heater
• An extra capacity battery
Before you operate the machine in temperatures
below -23°C (-10°F), consult your Caterpillar dealer.
Engine and Machine Warm-Up
NOTICE
Keep engine speed low until the engine oil pressure
alert indicator goes out. If the alert indicator does not go
out within ten seconds, stop the engine and investigate
the cause before starting again. Failure to do so can
cause engine damage.
1. Do not increase the engine speed from low idle. Do
not apply load to the engine during the first ten
seconds of operation.
2. Check all other gauges and indicators. All gauges
and indicators should show normal operation.
3. Operate the engine at low idle for at least five
minutes in order to warm the oil. More than five
minutes warm up time may be required when the
machine is operated in low temperature conditions.
Use this warm up time to help warm the hydraulic oil
by operating the joystick control in order to raise
and lower the boom.