L-1011 Procedure: Preflight Check - Fuel System, Fuel Control Amplifier, Fuel Used and Engine Oil Panel

From Lockheed L-1011 Flight Training Manual

Fuel Panel

• Verify refueling is complete and the REFUEL POWER ON switch legend is extinguished. 
• Test the fuel quantity system. Check that fuel quantity indicators and digital readouts drive towards FULL. The 2L and 2R INBD LOW quantity lights illuminate, and FUEL SYSTEM annunciator light on the CAWP is illuminated. 
• Latch in one pump switch on 2L or 2R thank, and open all three cross feed valve. This provides full pressure to all engines in preparation for start. 
• All amber lights should be extinguished, and all tank valve and cross feed valve switchlight flow bars illuminated, as well as one tank pump switch flow bar in 2L or 2R tank. 

Fuel Dump Panel 

• All light are extinguished.

Fuel Control Amplifier

• Switches should be unlatched and guarded and OVRD legend extinguished. 

Engine Fuel Used Panel

• Turn the test knob on each indicator and observe the fuel flow indicators drive to 10,000 pph, and the Fuel Used indicators increase at that rate. Fuel Used indicators are then reset by the Fuel Used Reset switch on the Fuel System panel. 

Engine Oil Panel

• Check all FILER PRESSURE lights extinguished. 
• Test the pressure gauges with the PRESS IND test switch. Oil pressure indicators go to the 9 o'clock position. 
• The (3) three oil temperature gauges should indicate approximately the same, depending on time since engine shutdown. 
• Oil quantity should be adequate for the flight (normally 15 - 20 US quarts)

Avionics Bending: Fuel Consumed Indication

L-1011 Fuel Consumption Indication System

The Engine Fuel Consumption indicator in the L-1011 cockpit consists of two instruments. The "Fuel Used" instrument located on the Second Officers lower console and the "Fuel Flow" (FF) instrument located on the main instrument panel. There is one of these instrument combinations for each engine.

The instrument on the right is the Fuel Used indicator which receives signals from the fuel flow meter installed as part of the engine fuel flow system. The signals received from the sensors are then routed through the Fuel Used instrument to the Fuel Flow instrument shown on the left in the image above.

Fuel Used Schematic 

From Lockheed L-1011 WDM, 1981

The Fuel Used Instrument is a GE 8DJ171 LWA 3

Fuel Flow Schematic 

From Lockheed L-1011 WDM, 1981

The Fuel Flow Instrument is a GE 8DJ170 LWA 1

Typically on the L-1011 every instrument has a test switch right on the instrument that drives the indicator to a predefined position. However, as you can see, the Fuel Flow instrument (on the left) does not have a test switch, because, it is tested via the Fuel Used instrument.

Below is a short video the shows the test of the Fuel Used and attached Fuel Flow instrument using the two position test switch on the Fuel Used Instrument