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BOEING PROPRIETARY -Copyright # -Unpublished Work -See title page for details.
VACUUM WASTE SYSTEM -INTRODUCTION
Purpose
The vacuum waste system removes waste from the toilets and stores it in the waste tanks. The waste stays in the waste tanks until they are serviced.
General Description
Waste collects in the toilet. Suction then moves the waste to the waste tanks. The suction is made by the vacuum blower. The difference between the cabin pressure and the outside pressure also moves the waste to the waste tanks. You remove the waste in the waste tanks through the waste service panel. The T handle in the service panel opens the waste tank drain ball valve. When you open the waste drain valve assembly, you permit the waste tanks to drain.
These components make up the vacuum waste system:
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Vacuum toilet assembly
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Waste tank
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Vacuum blower and filter
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Vacuum blower barometric switch (not shown)
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Vacuum check valve
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Vacuum waste system tubing
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Liquid separator
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Waste tank drain ball-valve
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Waste drain valve assembly
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Waste tank rinse fitting assembly
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Waste tank rinse filter
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Waste tank rinse nozzle.
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VACUUM WASTE SYSTEM -INTRODUCTION
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VACUUM WASTE SYSTEM -BULK CARGO COMPARTMENT COMPONENT LOCATIONS -1
Bulk Cargo Compartment Component Locations
The waste tanks are in the left side of the bulk cargo compartment, behind the side wall.
The waste tank ball valves are below and inboard of each waste tank. They connect to the waste tank near the bulk cargo compartment floor.
There is a waste tank rinse nozzle on each waste tank near the top of the tank.
There is a liquid separator on top of each waste tank. It is inside of the lid of the waste tank.
The filters are in the bulk cargo compartment on the left side, behind the side wall. The filter is up-stream of the rinse nozzle inboard of the waste tank.
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VACUUM WASTE SYSTEM -BULK CARGO COMPARTMENT COMPONENT LOCATIONS -1
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VACUUM WASTE SYSTEM -BULK CARGO COMPARTMENT COMPONENT LOCATIONS -2 Bulk Cargo Compartment Component Locations
Two vacuum check valves are outboard of the forward and mid waste tanks.
Two vacuum blowers are forward of the forward waste tank.
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VACUUM WASTE SYSTEM -BULK CARGO COMPARTMENT COMPONENT LOCATIONS -2
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VACUUM WASTE SYSTEM -TAIL COMPONENT LOCATIONS
Component Location
Two vacuum blower barometric switches are immediately aft of the aft pressure bulkhead.
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VACUUM WASTE SYSTEM -TAIL COMPONENT LOCATIONS
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VACUUM WASTE SYSTEM -WASTE SERVICE PANEL COMPONENT LOCATIONS
Component Locations
Three waste tank rinse fitting assemblies and the waste drain valve assembly are in the waste service panel. You open the waste service panel door to get access to the fitting assemblies and the valve.
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VACUUM WASTE SYSTEM -WASTE SERVICE PANEL COMPONENT LOCATIONS
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VACUUM WASTE SYSTEM -LAVATORY COMPONENT LOCATIONS
Component location
A vacuum toilet assembly and a flush switch are in each lavatory. The toilet assembly is under the toilet shroud. For more information about the toilet shroud, see Lavatories -Lavatory Equipment in the Equipment Furnishings section (SECTION 25-40).
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