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The waste tank is a graphite fiber reinforced plastic container.
The tank wall is graphite filaments wound over a stainless steel
liner. The center section of the tank wall includes a honeycomb
core.
The waste tank usable capacity is 60 gallons (227 liters).
The waste tank has fittings for these components:
* Waste tank rinse nozzle (2)
* Liquid separator
* Waste line inlet (2)
* Drain line
* Point level sensor (2).
An access cover at each end of the tank lets you examine or
clean the inside of the tank.
A band strap at the aft end of the tank and a tank mount on the
forward end of the tank holds the waste tank to the airplane
structure.
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE TANK
EFFECTIVITY
GUN ALL 38-32-00
Page 16
D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-012
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE TANK
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE TANK
EFFECTIVITY
GUN ALL 38-32-00
Page 17
D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-012
Purpose
The liquid separator removes moisture and waste particles
from the waste tank air.
Location
The liquid separator is at the top of the waste tank.
Physical Description
The liquid separator has these parts:
* Separator cap
* V-band coupling
* Upper separator assembly
* Lower separator assembly
* O-ring.
The v-band coupling attaches the liquid separator to the top of
the waste tank.
Functional Description
The vacuum blower pulls air out of the waste tank to an
overboard port. The air goes through the liquid separator.
Filters in the liquid separator remove the moisture and waste
particles before the air goes through the port in the separator
cap.
Training Information Point
Before you work on the liquid separator, isolate the waste tank
electrical components. Do the waste tank servicing. Do not add
the chemical precharge.
Use a general purpose cleaner detergent to clean the liquid
separator.
Use food grade processing grease on the O-ring when you
install the liquid separator.
WATER/WASTE - VACUUM WASTE SYSTEM - LIQUID SEPARATOR
EFFECTIVITY
GUN ALL 38-32-00
Page 18
D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-006
WATER/WASTE - VACUUM WASTE SYSTEM - LIQUID SEPARATOR
WATER/WASTE - VACUUM WASTE SYSTEM - LIQUID SEPARATOR
EFFECTIVITY
GUN ALL 38-32-00
Page 19
D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-006
THIS PAGE IS INTENTIONALLY LEFT BLANK
WATER/WASTE - VACUUM WASTE SYSTEM - LIQUID SEPARATOR
38-32-00
Page 20
D633A101-GUN Oct 10/2005
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
Purpose
The vacuum blower removes air from the waste tank.
Location
GUN ALL; VACUUM BLOWERS WITHOUT FILTERS
The vacuum blower is in the aft cargo compartment on the left
side. The vacuum blower is on a shelf forward of the waste tank.
GUN 001-012, 201-999; VACUUM BLOWERS WITH FILTERS
The vacuum blower is in the aft cargo compartment on the left
side. The vacuum blower is on a shelf forward of the waste tank.
The filter is on the outboard side of the vacuum blower.
GUN 001-012, 201-999
NOTE: There are two possible vacuum blowers. The old
configuration vacuum blower, PN 606802-2, has a filter.
The replacement vacuum blower, PN 645172–1, does
not have a filter. The vacuum blower without a filter is
fully interchangeable with the vacuum blower with a
filter.
GUN ALL
Physical Description
The vacuum blower is a three phase, high-speed, motor
operated fan.
The vacuum blower has these features:
* Intake port
* Exhaust port
* Electrical connection.
GUN 001-012, 201-999; VACUUM BLOWERS WITH FILTERS
* Filter
GUN ALL
Functional Description
The vacuum blower removes the air from the waste tank and
blows it out of the airplane. Removal of the air from the waste
tank causes the pressure in the waste tank to decrease. When a
flush valve opens, higher pressure cabin air pushes lavatory
　
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