(g)
The EICAS status message, FUEL QTY CHANNEL, will shown on the bottom display.
(h)
The EICAS maintenance message, FUEL QTY BITE, will show on the bottom display.
NOTE: In order to view the EICAS maintenance message, FUEL
____ QTY BITE, 45 seconds must elapse before again putting the FUEL QTY test switch in the FUEL QTY position. Then the ECS/MSG switch on the right side panel, P61, must be immediately pushed and released.
(i) The FQPU will do a VERIFY test on the fuel quantity indicating system.
NOTE: The FQPU will not do a VERIFY test if the fueling
____ station door is open or if the VERIFY switch on the FQPU has just been pushed. The VERIFY test will be completed in approximately 45 seconds.
(3)
The FUEL QTY test switch has a time out of approximately 8 seconds. After approximately 8 seconds, the fuel quantity indicator and all other displays will revert back to their previous condition. This 8 second time out is to prevent a broken FUEL QTY test switch from disabling the fuel quantity indicator and the other displays.
(4)
If before using the FUEL QTY test switch, a fault had caused the fuel quantity indicator to blank, then the fuel quantity indicator may give a false reading until the VERIFY test is completed. If the fault still exists after the VERIFY test, then the fuel quantity indicator will blank again.
(5)
Once the FUEL QTY test switch is used, 45 seconds must elapse before using the FUEL QTY test switch again. Using the FUEL QTY test switch more than once in a 45 second time frame will introduce nuisance fault codes and nuisance status codes into the FQPU.
I. Load Select Indicator (Fig. 8)_____________________
(1) One load select indicator found on the fueling control panel, P28, monitors each fuel tank.
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MAINTENANCE MANUAL
(2)
There are two black-on-white LCD's for each indicator. The upper display reads fuel quantity in each tank in LBS or KGS x 1000. The lower display shows the fuel quantity selected to be loaded into the tank in LBS or KGS x 1000. A 7-1/2 watt, automatically controlled heater assures proper LCD operation in cold weather. Four permanently installed incandescent lamps provide indicator back lighting. Power is applied to the indicators whenever the fueling station door is opened.
(3)
To test the load select indicators, push the TEST IND switch on the fueling control panel, P28. The top and bottom displays should show
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