曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
EFFECTIVITY
GUN ALL 38-33-00
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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* SENSOR J2
* SENSOR J3
* TANK FULL.
The POWER ON light will stay on.
Training Information Point
NOTE: Make sure that you drain the waste tank fully before
you do the auto zero adjustment procedure. If you do
not drain the waste tank fully, an error in the waste
quantity indication can occur.
NOTE: The two point level sensor connectors are identical.
Make sure that you connect the point level sensor
connectors to the correct receptacle on the LCM.
WATER/WASTE - WASTE TANK QUANTITY INDICATION SYSTEM - LOGIC CONTROL MODULE
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D633A101-GUN Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-33-00-004
WATER/WASTE - WASTE TANK QUANTITY INDICATION SYSTEM - LOGIC CONTROL MODULE
WATER/WASTE - WASTE TANK QUANTITY INDICATION SYSTEM - LOGIC CONTROL MODULE
EFFECTIVITY
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D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-33-00-004
Purpose
The waste quantity indicator shows the level of waste in the
waste tank.
Location
The waste quantity indicator is a part of the attendant panel at
the aft attendant station.
Physical Description
The waste quantity indicator is a part of the waste system
module. The waste system module has these features:
* Waste quantity indicator
* CLEAN/CHECK SENSOR light
* LAVS INOP light and test switch.
Operation
The waste quantity indicator shows the waste quantity with a
LED segment display. The LED segment display shows the
waste quantity from E (empty) to F (full) in 1/8-tank increments.
The CLEAN/CHECK SENSOR light comes on when the waste
tank level is three inches (7.6 cm) or more below the tank full
level and one of these conditions occur:
* A point level sensor is fouled (dirty)
* A point level sensor failed the system BIT test
* There is a sensor disagreement.
A sensor disagreement occurs when one point level sensor
sends a tank full signal and the other point level sensor sends a
tank not full or sensor fouled signal.
The LAVS INOP light comes on when both point level sensors
send a tank full signal.
You can do the system BIT test when you push the LAVS INOP
test switch. If all components pass the system BIT test, the
waste quantity indicator shows a full tank and the CLEAN/
CHECK SENSOR light is off.
Training Information Point
The CLEAN/CHECK SENSOR light shows problems with the
point level sensors. When the waste tank level is three inches
(7.6 cm) or less from the waste tank full level, the CLEAN/
CHECK SENSOR light is disabled and can not come on. The
CLEAN/CHECK SENSOR light is disabled to prevent nuisance
indications when splashes from turbulence or airplane
maneuvers could cause the light to come on. The signal to
disable the CLEAN/CHECK SENSOR light comes from the
continuous level sensor, through the logic control module.
WATER/WASTE - WASTE TANK QUANTITY INDICATION SYSTEM - WASTE QUANTITY INDICATOR
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-33-00-005
WATER/WASTE - WASTE TANK QUANTITY INDICATION SYSTEM - WASTE QUANTITY INDICATOR
WATER/WASTE - WASTE TANK QUANTITY INDICATION SYSTEM - WASTE QUANTITY INDICATOR
EFFECTIVITY
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-33-00-005
Power
The 28v dc ground service bus supplies power to the waste tank
quantity indication system.
Displays
The continuous level sensor sends waste level data to the logic
control module (LCM). The LCM sends a waste level signal to
the waste system module. The waste system module contains
logic which controls which LEDs to turn on. The waste quantity
indicator shows the waste level in 1/8 tank intervals. The E
(empty) LED will be on when the waste quantity indication
system has power.
When both point level sensors send a full tank signal to the
LCM, the LCM does these steps:
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