Normal Starting Procedure - Doosan DX140R Shop Manual

Normal Starting Procedure

General Information
Do not depress the accelerator pedal or move the
accelerator lever from the idle position while cranking the
engine. This can result in engine overspeed and severe
damage to the engine.
To prevent damage to the starting motor, do not engage the
starting motor for more than 30 seconds. Wait 2 minutes
between each attempt to start (electrical starting motors
only).
Engines equipped with air starting motors require a
NOTE:
minimum of 480 kPa (70 PSI).
• Disengage the driven unit, or if equipped, put the
transmission in neutral.
• With the accelerator pedal or lever in the idle position,
turn the key switch to the ON position, and wait for
the WAIT-TO-START lamp to go out; then, turn the
key to the START position.
• If the engine does not start after three attempts,
check the fuel supply system. Absence of blue or
white exhaust smoke during cranking indicates no
fuel is being delivered.
The engine must have adequate oil pressure within 15
seconds after starting. If the WARNING lamp indicating low
oil pressure has not gone out or there is no oil pressure
indicated on a gauge within 15 seconds, shut off the engine
immediately to avoid engine damage. The low oil pressure
troubleshooting procedure is located in "Troubleshooting
Symptoms" on page-195.
QSB4.5 Engine
Page 50
WARNING!
CAUTION!
CAUTION!
Figure 21
Figure 22
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