AIR COMPRESSOR GP 4P1912 - Caterpillar

marine C6.6 genset has two different types of control panel.Marine Certification Society (MCS) Control Panel
Starting Procedure
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MCS Display module
(10) Isolator Keyswitch
(16) Mode Key
(19) Stop Key
(20) Start Key Use the following procedure for Marine Certification Society control panels in order to start the engine.
Turn the Isolator keyswitch (10) for the Generator Set to the ON position. The "Power" LED will illuminate immediately. The "Self Check OK" LED will illuminate after a few seconds. The Generator Set is now ready to start. Line 4 on the display will read "SETUP V3 V2 V1".The view that is being displayed is underlined. Use the left arrow button and the right arrow button to scroll between the 4 screens of the display.
Make sure that the "Auto" LED is off. If the "Auto" LED is on press the "Mode" key once in order to extinguish the "Auto" LED and gain local control.
Press the "Start" key. If "V3" is selected, the display will indicate the current status in the start/run cycle. The display will show "start prepare" and "start relay on".
If the timer (preheat) is configured, then the timer (preheat) will be initiated. After the timer (preheat) has expired, the engine will begin to crank. Note: When the engine starts, the starting motor is disengaged and the starting motor is locked out.
If the engine did not start, then the control module will permit the starting motor to cool down for a predetermined amount of time. Once the cooldown timer has expired, the engine will crank. Note: The "Failed to Start" fault will be displayed in "V3" after 3 failed attempts to start the engine. The "Alarm" LED indicator will flash. If this occurs, move the cursor to "ACK" and press the "SEL" key in order to reset the alarm. Determine the reason that the engine failed to start before making further attempts.
After the engine has started, the timer (safety) is activated, unless the timer has been set to 0. This function allows the engine to warm up so that no faults will occur. Once the timer (safety) has expired, fault protection is available. The generator load may now be applied to the engine.
To stop the engine, open the circuit breaker and remove the load from the generator. Press and release the "STOP" key. Note: Pressing the "Stop" key will bypass the cooldown period.EMCP3 Control Panel
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(1) Display Screen
(2) Yellow Warning Lamp
(3) Red Shutdown Lamp
(7) Auto Key
(8) Run Key
(23) Isolator Keyswitch If the starting motor is operated by air, ensure that the air supply and air pressure is correct.Powering the Panel
Ensure that the isolator keyswitch (23) is in the On position.
The panel will go into stop mode and the stop lamp below the stop key (6) will be illuminated.
Press the run key (8). The panel will check the system for any shutdown event. Provided that there are no engine shutdown events, the engine can be started. There can be a delay in order for the glow plugs to operate before the starting motor will