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flow of waste out of the waste tank.
Location
The waste drain ball valve and linkage assembly are in the aft
cargo compartment on the left side. The waste drain ball valve
is in the drain line, between the waste tank and the waste
service panel. The linkage assembly is adjacent to the waste
drain ball valve, between the valve and the waste service panel.
Physical Description
The waste drain ball valve is a manually-operated two- position
ball valve. It has these parts:
* Ball valve
* Actuator lever
* Proximity switch.
There is an electrical connection at the proximity switch.
The linkage assembly has these parts:
* Control rod
* Uniball assembly
* Handle (not shown).
Functional Description
You pull the handle at the waste service panel to open the
waste drain ball valve. The handle transmits the movement
through the control rod to the actuator lever. The actuator lever
moves the waste drain ball valve.
The proximity switch stops the operation of the vacuum blower
when the waste drain ball valve is not closed.
Training Information Point
The waste drain ball valve connects to the drain lines with vband
clamps and gask-o-seal gaskets.
You must remove the waste drain heater blanket before you
work on the waste drain ball valve.
There is a clean-out line from the drain elbow to the blockage
removal valve.
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE DRAIN BALL VALVE & LINKAGE ASSEMBLY
EFFECTIVITY
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-007
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE DRAIN BALL VALVE & LINKAGE ASSEMBLY
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE DRAIN BALL VALVE & LINKAGE ASSEMBLY
EFFECTIVITY
GUN ALL 38-32-00
Page 33
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-007
Purpose
The waste service panel lets you drain the vacuum waste
system. The waste service panel also lets you rinse the waste
tank.
Location
The waste service panel is in the aft, lower-left area of the
fuselage.
Physical Description
These are the components in the waste service panel:
* Waste drain valve assembly
* Waste drain ball valve control handle
* Waste tank rinse fitting assembly.
Two snap-latches hold the waste service panel closed.
You can get access to the waste service panel components
from the aft cargo compartment. The service panel components
are forward and below the waste tank.
Functional Description
The waste drain valve assembly connects to the waste drain
elbow. The waste tank rinse fitting assembly connects to the
rinse hose. The control handle lets you open the waste drain
ball valve.
To drain the waste tank, you open the waste drain ball valve.
The proximity switch on the waste drain ball valve stops
operation of the vacuum blower when the waste drain ball valve
is open.
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE SERVICE PANEL
EFFECTIVITY
GUN ALL 38-32-00
Page 34
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-004
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE SERVICE PANEL
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE SERVICE PANEL
EFFECTIVITY
GUN ALL 38-32-00
Page 35
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-004
Purpose
The waste drain valve assembly lets you drain the vacuum
waste system.
Location
The waste drain valve assembly is part of the waste service
panel at the aft left side of the airplane.
Physical Description
The waste drain valve assembly has these parts:
* Quick-disconnect fitting (not shown)
* Push-to-open lever
* Flapper valve (not shown)
* Drain cap
* Cap handle.
Functional Description
You open the drain cap and attach the waste drain hose to the
quick-disconnect fitting. The push-to-open lever opens the
flapper valve and lets waste drain from the vacuum waste
system.
WATER/WASTE - VACUUM WASTE SYSTEM - WASTE DRAIN VALVE ASSEMBLY
EFFECTIVITY
GUN ALL 38-32-00
Page 36
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
　
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