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pressure filter element installation test.
MAIN HYDRAULIC SYSTEMS - PRESSURE MODULE
EFFECTIVITY
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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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.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
29-10-00-009
MAIN HYDRAULIC SYSTEMS - PRESSURE MODULE
MAIN HYDRAULIC SYSTEMS - PRESSURE MODULE
EFFECTIVITY
GUN ALL 29-10-00
Page 25
D633A101-GUN Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
29-10-00-009
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MAIN HYDRAULIC SYSTEMS - PRESSURE MODULE
29-10-00
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D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
Purpose
The case drain filter module cleans the case drain fluid from the
engine-driven pumps (EDP) and electric motor-driven pumps
(EMDP) before it goes through the heat exchangers and back to
the reservoirs.
Location
The EDP case drain filter modules are on each engine in the
case drain line between the EDP and the hydraulic disconnects
on the engine strut.
The EMDP case drain filter modules are in the case drain line
just below their related pump, in the main landing gear wheel
well on the forward bulkhead.
Physical Description
The case drain filter module is non-bypass type with a 10-20
micron, non-cleanable, cartridge type filter element.
The case drain filter module has these components:
* Filter module head
* Filter bowl
* Replaceable filter element.
Functional Description
An arrow on the filter module shows the direction of flow
through the filter module.
A check valve on the outlet of the filter module prevents
backflow from the other pump in the system.
Training Information Point
If you replace any of the pumps because of a malfunction, you
must also replace the case drain filter element for that pump.
You can not clean the filter element and use it again.
EDP
If you operate the engine fire switch and the EDP runs for five
minutes, you must inspect the EDP case drain filter for pump
damage and replace the filter.
CAUTION: MAKE SURE THE ARROW ON THE FILTER HEAD
WILL POINT AFT. FAILURE TO DO THIS CAN
CAUSE DAMAGE TO THE EDP.
CAUTION: MAKE SURE YOU INSTALL THE CHECK VALVE IN
THE "OUT" PORT, AND THE ARROW ON THE
CHECK VALVE MATCHES THE ARROW ON THE
FILTER HEAD. FAILURE TO DO THIS CAN CAUSE
DAMAGE TO THE EDP.
MAIN HYDRAULIC SYSTEMS - CASE DRAIN FILTER MODULE
EFFECTIVITY
GUN ALL 29-10-00
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D633A101-GUN Oct 10/2005
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
29-10-00-010
EMDP
A contaminated EMDP case drain filter can cause the EMDP to
overheat and turn on the OVERHEAT light, the MASTER
CAUTION light, and the HYD light on the systems annunciator
panel.
If metal contamination is found in the EMDP case drain filter,
you must do an EMDP case drain filter metal contamination
check.
CAUTION: MAKE SURE THE ARROW ON THE FILTER HEAD
WILL POINT OUTBOARD. FAILURE TO DO THIS
CAN CAUSE DAMAGE TO THE EMDP.
CAUTION: MAKE SURE YOU INSTALL THE CHECK VALVE IN
THE "OUT" PORT, AND THE ARROW ON THE
CHECK VALVE MATCHES THE ARROW ON THE
FILTER HEAD. FAILURE TO DO THIS CAN CAUSE
DAMAGE TO THE EMDP.
MAIN HYDRAULIC SYSTEMS - CASE DRAIN FILTER MODULE
EFFECTIVITY
GUN ALL 29-10-00
Page 28
D633A101-GUN Oct 10/2005
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
29-10-00-010
MAIN HYDRAULIC SYSTEMS - CASE DRAIN FILTER MODULE
MAIN HYDRAULIC SYSTEMS - CASE DRAIN FILTER MODULE
EFFECTIVITY
GUN ALL 29-10-00
Page 29
D633A101-GUN Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
29-10-00-010
THIS PAGE IS INTENTIONALLY LEFT BLANK
MAIN HYDRAULIC SYSTEMS - CASE DRAIN FILTER MODULE
29-10-00
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D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
Purpose
The heat exchangers cool the hydraulic case drain fluid from
the pumps before the fluid goes back to the reservoir.
Location
The system A heat exchanger is in the case drain line common
　
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