GE ES44AC Locomotive Engine Control Panel (Switches, Circuit Breakers and Pushbuttons).
ENGINE CONTROL (EC) PANEL
The Engine Control (EC) panel is located on the rear wall of the Operator Cab. Mounted on this panel are various switches, circuit breakers, pushbuttons, and indicators used during locomotive operation. The following descriptions detail the function and operation of the Engine Control (EC) panel devices.
First we should talk about battery switch, the Battery switch is located under the engine control panel, here exactly.
in this position the battery switch is closed and all circuits are provided with battery power when diesel engine is off.
let's talk about circuit breakers
Window Heater Circuit Breaker (WHB)
Road Crossing Lights Circuit Breaker (RCLCB)
The Road Crossing Light circuit breaker provides battery power and electrical circuit protection to the Road Crossing lights on the front and rear of the locomotive.
Refrigerator Circuit Breaker (WCB)
Radio Circuit Breaker (RCB)
The Radio circuit breaker provides battery power and electrical circuit protection to the cab radio
Distributed power circuit breaker (DPCB)
Cab fan circuit breeaker (CFCB)
The Cab fan circuit breaker provides battery power and electrical circuit protection to the Cab fan.
Short Hood Headlights Circuit Breaker (FHB)
The Headlight circuit breaker provides battery power and electrical circuit protection to the two front headlights of the locomotive.
Long Hood Headlights Circuit Breaker (FHB)
The Headlight circuit breaker provides battery power and electrical circuit protection to the two Rear headlights of the locomotive.
Electric Parking Brake Switch
Air Dryer Circuit Breaker (ADCB)
The Air Dryer circuit breaker provides battery power and electrical circuit protection to the air dryer in the compressed air system.
Air Brake Circuit Breaker 1 and 2 (ABCB)
The Air Brake Circuit Breaker provides battery power and electrical circuit protection to components of the electronic air brake system.
NOTE: Both Air Brake circuit breakers, Air Brake Circuit Breaker 1 and Air Brake Circuit Breaker 2, must be ON for complete EAB system functionality.
Lights Circuit Breaker (LCB)
Fuel Pump Circuit Breaker (FPB)
The Fuel Pump circuit breaker supplies both the engine fuel pump and the ECU with power and circuit protection through separate circuit breakers, mechanically joined.
Fuel Monitor Circuit Breaker (FTB)
Local Control Circuit Breaker (LCCB)
Multi-Task Circuit Breaker (MTB)
NoTE: The Multi-Task circuit breaker (MTB) is always ON while the Battery Charge and Computer circuit breaker (BCCB) is ON. MTB should be OFF for maintenance purposes only
Battery Charger and Computer Power Supply Circuit Breaker (BCCB)
Engine Start Pushbutton
Press the Engine Start pushbutton to initiate the engine start sequence.
Engine Stop Pushbutton
Press the Engine Stop pushbutton to shut down the engine.
Crosswalk Lights Switch
This switch operates all the locomotive crosswalk lights.
Control Compartment Light Switch
This switch turns on lights in Control Areas 1, 2, 3, 4 and 5.
Front Number Light Switch
This switch operates front number lights.
MU Headlight Set–Up Switch
The MU Headlight Set–Up switch has five positions. Positioning of this switch is determined by location of the locomotive unit in the consist and whether the short hood (F end) of the locomotive unit is leading or trailing. Switch positions are as follows:
1. SINGLE OR MIDDLE UNIT – Place switch in this position on any locomotive unit operated singly or on all units, except the Leading or Trailing unit, when the locomotive consist is made up of more than two units.
2. SHORT–HOOD LEAD – LEADING UNIT – Place switch in this position when the Leading unit is operated with the short hood forward.
3. LONG–HOOD LEAD – LEADING UNIT – Place switch in this position when the Leading unit is operated with the long hood forward.
4. SHORT–HOOD TRAIL – TRAILING UNIT – Place switch in this position when the final Trailing unit is connected so its short hood trails.
5. LONG–HOOD TRAIL – TRAILING UNIT – Place switch in this position when the final Trailing locomotive is connected so its long hood trails.
Engine Control Switch (EC)
The Engine Control switch has with four positions to control engine operation:
1. START — The Engine Start pushbutton is effective only when the EC switch is in START.When the engine is running and the EC switch is in START position, engine speed is held at IDLE and power cannot be applied to the locomotive. The Alarm Bell will not ring if the engine shuts down with the EC switch in this position.
2. ISOLATE — When the engine is running and the EC switch is in the ISOLATE position, the engine speed is held at IDLE and power cannot be applied to the locomotive. The message “ISOLATED” will appear on the SDIS.
3. RUN — When the engine is idling and the locomotive is to be operated, the Engine Control (EC) switch must be moved to the RUN position.
NOTE: If the EC switch is left in the RUN or ISOLATE position when the diesel engine is shut down the Alarm Bell will sound.
4. JOG —When the locomotive is to bemoved using battery power, the EC switch is moved to the JOG position.
Auto Stop Override Pushbutton
Press the Auto Stop Override pushbutton to prevent the diesel engine from automatically shutting down.
Pressing this pushbutton will prevent an automatic engine shut down for a period of two hours.
NOTE: Pressing the Auto Stop Override pushbutton twice within 30 seconds will shut down the engine after one minute.
Air Conditioner/Heater Circuit Breaker
This circuit breaker controls power to the cab air conditioner/heater unit.
Strip Heater Circuit Breakers and Output Controls
Here is the YouTube Video if you are interested.
Nice!
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