(f)
Remove the four screws, washers and a gasket that attach the waveguide section 5 to the waveguide switch.
(g)
Remove the six screws and locknuts that connect the E30-1 upper shelf to the E30 rack.
CAUTION: BE CAREFUL TO PREVENT ACCIDENTAL DAMAGE TO THE WIRE
_______ BUNDLES ON THE E30-1 UPPER SHELF. WHEN YOU REMOVE THE E30-1 UPPER SHELF FROM THE E30 RACK, DAMAGE TO THE WIRES CAN OCCUR.
(h)
Carefully remove the E30-1 upper shelf from the E30 rack.
(i)
Remove the four screws and washers and a gasket from the right feeder waveguide at the waveguide switch.
(j)
Remove the four screws and washers and a gasket from the right feeder waveguide at the R/T mount waveguide.
(k)
Remove the right feeder waveguide.
(l)
Remove the four screws and washers and a gasket from the left feeder waveguide at the waveguide switch.
(m)
Remove the four screws and washers and a gasket from the left feeder waveguide at the R/T mount waveguide.
(n)
Remove the left feeder waveguide.
(o)
Remove the four screws and washers that attach the waveguide switch to the R/T mount support.
(p)
Remove the waveguide switch.
S 024-070
(7)
Put a cover on the waveguide switch that is lint free for protection of the waveguide flanges and electrical connector.
(8)
Put a dust cap on waveguide section 5.
S 024-072
(9)
Put dust caps on the waveguide flanges of the right R/T feeder waveguide.
S 024-073
(10)
Put dust caps on the waveguide flanges of the left R/T feeder waveguide.
S 024-071
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
34-43-07
ALL ú ú 01B Page 403 ú Jun 10/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
E30-1 UPPER ANGLE ASSEMBLY
ELECTRONIC
EQUIPMENT
RACK, E30
E30-1 UPPER SHELF SCREW AND WASHER (6 LOCATIONS) ELECTRONIC EQUIPMENT RACK, E30 . WEATHER RADAR R/T MOUNT
SEE A
FEEDER WAVEGUIDES
DUAL R/T MOUNT
WAVEGUIDE SWITCH
AIR HOSE
R/T MOUNT CONNECTORS AND GROUND TERMINALS
SEE C
AIR HOSE
E30 RACK
AIR PLENUM
AIR HOSE
CLAMPS
WIRE BUNDLES
AEO 302
DISCONNECT PANEL
SEE B
WEATHER RADAR R/T MOUNT
A
Weather Radar Waveguide Switch Installation Figure 401 (Sheet 1)
E00436
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. PASSENGER AIRPLANES ú
34-43-07
ú ú 02B Page 404 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
D41898P
D41892P D41891P
D41893P
D41886P D41890P
D41895P D41888P
FWD OUTBD D41894P
D41887P
AEO 302 DISCONNECT PANEL R/T MOUNT
B
R/T MOUNT WAVEGUIDE (2 LOCATIONS)
LEFT FEEDER
WAVEGUIDE RIGHT FEEDER WAVEGUIDE WAVEGUIDE SWITCH
WAVEGUIDE SECTION 5 TO ANTENNA
WIRE BUNDLE
SCREW, WASHER
SCREW, WASHER (4 LOCATIONS)
(4 LOCATIONS) GASKET
GASKET
WAVEGUIDE SWITCH CONNECTOR
R/T MOUNT CONNECTIONS AND GROUND TERMINALS
INBD
FWD C
Weather Radar Waveguide Switch Installation Figure 401 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. PASSENGER AIRPLANES ú
34-43-07
ú ú 05B Page 405 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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