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A 747-400 MAINTENANCE MANUAL
2) 7C19 WXR R RT
(2) S 424-007Do these steps to install each of the R/T mount filters: (a) Attach the filter to the filter bracket. (b) Carefully install the filter assembly into the filter enclosure. (c) Put the cover on the top of the filter enclosure. (d) Tighten the cover with the two knobs and four washers.
(3) S 414-014Do this task to install the left WXR R/T in the E30 equipment rack: "Weather Radar Receiver/Transmitter Installation" (AMM 34-43-02/401).
(4) S 414-038Do this task to install the right WXR R/T into the E30 equipment rack: "Weather Radar Receiver/Transmitter Installation. (AMM 34-43-02/401).
(5) S 414-013Install the towing static inverter in the E30 equipment rack (AMM 24-29-05/401).
(6) S 864-014Remove the DO-NOT-CLOSE tags and close these circuit breakers: (a) P7 Overhead Circuit Breaker Panel 1) 7C7 WXR L RT 2) 7C19 WXR R RT
(7) S 864-020Do this task to supply electrical power: (AMM 24-22-00/201). "Manual Control"
(8) S 714-008Do the operational test or the ground test (AMM 34-43-00/501).
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747-400 MAINTENANCE MANUAL
S 414-022
(9)
If access is not necessary, close the access door on the 117AL electronic compartment. (AMM 06-09-01/201).
S 864-021
(10)
If electrical power is not necessary, do this task to remove electrical power: "Manual Control" (AMM 24-22-00/201).
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A
747-400
MAINTENANCE MANUAL
EQUIPMENT RACK, E30
WEATHER RADAR R/T MOUNT
SEE A
RIGHT RECEIVER/TRANSMITTER
TOWING STATIC LEFT RECEIVER/TRANSMITTER
INVERTER FILTER ENCLOSURES
EQUIPMENT
RACK, E30
KNOB AND WASHER
(2 EACH ENCLOSURE)
WEATHER RADAR R/T MOUNT A
Weather Radar R/T Mount Filter Installation
Figure 401
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747-400 MAINTENANCE MANUAL
WEATHER RADAR R/T MOUNT FILTER - CLEANING/PAINTING
__________________________________________________
1. General_______
A. This subject has one task, to clean the R/T mount filters.
TASK 34-43-08-107-001
2. Filter Cleaning_______________
A. Standard Tools and Equipment
(1) Dry air pressure source.
B. Consumable Materials
(1) B00541 Cleaner - General purpose detergent, P-D-220
C. References
(1) AMM 34-43-08/401, Weather Radar R/T Mount Filter
D. Access
(1)
Location Zones 116 Area Between the Nose Gear Well and the Fuselage, RH
(2)
Access Panels 117AL Electronics Compartment Access Door
E. Procedure
(1) S 017-004Do this task to remove the R/T mount filter: Removal" (AMM 34-43-08/401). "R/T Mount Filter
(2) S 167-002Clean the R/T mount filter. (a) Clean the filter in a container with hot water and detergent soap. (b) Dry the filter with a clean, dry compressed air.
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