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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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.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
toilet waste to the waste tank.
GUN 001-012, 201-999; VACUUM BLOWERS WITH FILTERS
The filter removes particles from the air used to cool the
vacuum blower during operation.
GUN ALL
Three thermal switches give overheat protection. The switches
are wired in series and operate at 270F (132C). If a switch
operates, it stops motor operation. The switches reset when the
temperature decreases to less than their set point.
Operation
The vacuum blower operates when you push the flush switch
and the airplane is below 16,000 feet.
WATER/WASTE - VACUUM WASTE SYSTEM - VACUUM BLOWER AND FILTER
EFFECTIVITY
GUN ALL 38-32-00
Page 21
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-010
Training Information Point
The vacuum blower has two flexible coupling hoses that attach
with clamps. Four fasteners on shock mounts and a jumper
cable attach the blower to the shelf.
GUN 001-012, 201-999; VACUUM BLOWERS WITH FILTERS
There are four packings that hold the filter to 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.
You can clean the filter. Use an air source and blow the air
through the filter in the opposite direction of the usual flow.
GUN ALL
WATER/WASTE - VACUUM WASTE SYSTEM - VACUUM BLOWER AND FILTER
EFFECTIVITY
GUN ALL 38-32-00
Page 22
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-010
WATER/WASTE - VACUUM WASTE SYSTEM - VACUUM BLOWER AND FILTER
WATER/WASTE - VACUUM WASTE SYSTEM - VACUUM BLOWER AND FILTER
EFFECTIVITY
GUN 001-012, 201-999; VACUUM BLOWERS WITH FILTERS 38-32-00
Page 23
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-010
WATER/WASTE - VACUUM WASTE SYSTEM - VACUUM BLOWER
WATER/WASTE - VACUUM WASTE SYSTEM - VACUUM BLOWER AND FILTER
EFFECTIVITY
GUN 013-099, 101-118; VACUUM BLOWERS WITHOUT FILTERS 38-32-00
Page 24
D633A101-GUN Oct 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
38-32-00-010
THIS PAGE IS INTENTIONALLY LEFT BLANK
WATER/WASTE - VACUUM WASTE SYSTEM - VACUUM BLOWER AND FILTER
38-32-00
Page 25
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
Purpose
The vacuum blower barometric switch opens when the altitude
　
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