S 022-004
(3)
Remove the filter from the filter cover.
(4)
Examine the filter and clean it or replace it if it is necessary.
S 212-005
TASK 21-61-06-102-006
3. Zone Temperature Sensor Filter Cleaning (Fig. 201)_______________________________________
A. Standard Tools and Equipment
(1) Brush - Soft Bristle
B. Consumable Materials
(1)
B00161 Detergent (or equivalent)
(2)
G01043 Cloth - Lint Free
C. References
(1) IPC 21-61-03 Fig. 4 and 10
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A
747-400
MAINTENANCE MANUAL
FLIGHT DECK
UPPER DECK
TEMPERATURE SENSOR
TEMPERATURE SENSOR
SEE A
SEE C
CREW REST AREA TEMPERATURE SENSOR
SEE B ZONE TEMPERATURE SENSOR ASSEMBLY
FWD FILTER COVER
PANEL FILTER
FLIGHT DECK TEMPERATURE SENSOR
TEMPERATURE A
SENSOR AIR INLETS SEE D
ZONE TEMPERATURE SENSOR ASSEMBLY
CREW REST AREA CEILING PANEL
CREW REST AREA TEMPERATURE SENSOR
B
Zone Temperature Sensor Filter - Maintenance Practices Figure 201 (Sheet 1)
D01205
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A
747-400
MAINTENANCE MANUAL
SEE
CEILING PANEL
FILTER
TEMPERATURE SENSOR AIR INLET
D
Zone Temperature Sensor Filter - Maintenance Practices
Figure 201 (Sheet 2)
D01220
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A
747-400
MAINTENANCE MANUAL
D. Access
(1) Location Zones
220 Control Compartment and Upper Deck Compartment Body Sta 240 to 632
E. Procedure
S 022-007
(1) Remove the filter
(a)
Find the applicable filter.
(b)
Remove the snap-on filter cover with the filter.
(c)
Remove the filter from the filter cover.
S 162-008
(2) Clean the filter
(a) Clean the filter cover and the filter with a solution of the detergent and water.
NOTE: You can put the filter cover and the filter fully into
____ the detergent solution to clean them and in the water to rinse them.
(b)
Replace the filter if you can not clean it sufficiently with the detergent.
(c)
Rinse the filter cover and the filter with the water.
(d)
Hold the filter tightly until you remove all of the water.
(e)
Dry the grilles with the lint-free cloth.
S 422-009
(3) Install the temperature sensor filter.
(a)
Put the filter in the filter cover.
(b)
Install the filter cover with the filter in the air inlet of the temperature sensor assembly.
TASK 21-61-06-402-010
4. Zone Temperature Sensor Filter Installation (Fig. 201)
___________________________________________
A. References
(1) IPC 21-61-03 Fig. 4 and 10
B. Access
(1) Location Zones
220 Control Compartment and Upper Deck Compartment Body Sta 240 to 632
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