Doosan P185WDOU-T4F, Operation And Maintenance Manual

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Operation & Maintenance Manual OPERATING INSTRUCTIONS
Starting
Do not use ether or any other starting f uid. Starting f uids can cause
an explosion, f re, and severe engine damage. The engine is equipped
with an electric heater starting aid.
1. Press the Main Power Button.
2. When the Wait To Start message disappears, press and release Green Start Button.
3. Engine will crank until engine starts or engine starting time limit is reached. The first
light on the Start Button will illuminate.
4. If engine fails to start, press Main Power Button to remove power from engine.
Repeat steps 1-3.
5. When engine starts, the first two lights on the Start Button will illuminate.
6. Wait for Engine Temperature to reach 150°F (65°C). Press Service Air Button. The
third light on the Start Button will illuminate.
To ensure an adequate f ow of oil to the airend, never allow the discharge
pressure to fall below 50 psi.
Normal Operation
The operator may observe and monitor operating parameters using the Mini-Port and
gauges. In the event the compressor controller detects a parameter outside normal operating
limits, the compressor will alert and/or shutdown, and display a diagnostic code.
In the event the compressor controller detects a parameter at a dangerously high or low level,
the compressor will be automatically shut down with the cause of the shutdown shown on
the Mini-Port.
Operation Loaded
Assume engine has been started and is running in the unload state at idle speed. If there is air
demand (pressure falls below the load point pressure), compressor will load at idle speed by
opening the inlet valve. As air demand rises and falls, engine speed is controlled between idle
speed and full load speed to match the required flow while maintaining load point pressure.
Operation Unloaded
If there is no air demand at idle speed (pressure rises above the unload point pressure), the
compressor will unload by closing the inlet valve. The compressor then runs at idle speed
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