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See Part II of the Airplane Maintenance Manual for the repair
procedure.
Location
The insulation panels are around the inside of the APU
compartment. The name of the panel is also the location of
the panel in the compartment.
These are the seven insulation panels:
* Forward
* Forward right
* Aft right
* Aft
* Left
* Top
* Door.
Training Information Point
The insulation panels in the APU compartment are installed in a
specified order because of the insulation panel over laps. The
APU cowl door insulation panel is installed independently.
See Part II of the maintenance manual for APU insulation panel
removal/installation procedures.
APU POWER PLANT - APU INSULATION PANELS
EFFECTIVITY
GUN ALL 49-10-00
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
49-10-00-010
APU POWER PLANT - APU INSULATION PANELS
APU POWER PLANT - APU INSULATION PANELS
EFFECTIVITY
GUN ALL 49-10-00
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
49-10-00-010
Purpose
Six of the seven insulation panels have holes for APU systems
interface connections with the airplane.
These are the six insulation panels with holes:
* Forward
* Forward right
* Aft right
* Aft
* Top
* Door.
Forward Insulation Panel
These are the holes in the forward insulation panel:
* Starter-generator wiring
* Fire detector and compartment light connector
* Generator control connector
* ECS duct
* Fire extinguisher nozzle
* Fuel line
* Three electrical connectors for APU harness.
Forward Right Insulation Panel
The forward right insulation panel has a hole for the APU
forward right mount.
AFT Right Insulation Panel
The aft right insulation panel has a hole for the APU aft mount.
Aft Insulation Panel
Two holes are in the aft insulation panel. One is for the eductor
duct and the other is for the APU exhaust duct.
Top Insulation Panel
These are the holes in the top insulation panel:
* Right forward mount strut and boot assembly
* Two right aft mount struts and boot assemblies
* Two left aft mount struts and boot assemblies
* Left forward mount strut and boot assembly
* APU starter-generator lift fitting
* Two APU lift fittings
* APU electrical ground bracket.
Door Insulation Panel
The door insulation panel has one hole for the APU drains.
APU POWER PLANT - APU INSULATION PANELS INSTALLATION
EFFECTIVITY
GUN ALL 49-10-00
Page 24
D633A101-GUN Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
49-10-00-011
APU POWER PLANT - APU INSULATION PANELS INSTALLATION
APU POWER PLANT - APU INSULATION PANELS INSTALLATION
EFFECTIVITY
GUN ALL 49-10-00
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
49-10-00-011
General
The auxiliary power unit is removed or installed from the
airplane by on of these two methods:
* Fishpole hoist
* Hydraulic jack.
The fishpole hoist method uses two fishpole hoists and APU
hoist equipment to lift and lower the APU. The APU hoist
equipment has three parts:
* Forward arm assembly
* Center beam assembly
* Aft arm assembly.
The APU hoist equipment attaches to the two APU lift fittings in
the APU compartment. The two fishpole hoists attach to the APU
hoist equipment and the APU. The two fishpole hoists are used
to move the APU up and down in the APU compartment.
The hydraulic jack method uses a hydraulic jack assembly, an
adapter, and a maintenance stand to lift and lower the APU. The
adapter attaches to the hydraulic jack assembly. The
maintenance stand is used to lift the APU, adapter and
hydraulic jack assembly to the APU compartment. The
hydraulic jack assembly then moves the APU up and down in
the APU compartment.
WARNING: MAKE SURE THE TWO FISHPOLE HOISTS ARE IN
SERVICEABLE CONDITION. THE TWO CABLES OF
THE TWO FISHPOLE HOISTS MUST SHOW NO
SIGNS OF DAMAGE. YOU CAN CAUSE INJURY TO
PERSONS OR DAMAGE TO EQUIPMENT.
CAUTION: MAKE SURE THE TWO CABLES OF THE TWO
FISHPOLE HOISTS ARE EQUALLY WOUND
AROUND THE DRUMS BEFORE YOU USE THE
TWO FISHPOLE HOISTS TO HOLD THE APU. A
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