ALL 04.1 Page 406 Oct 25/9834-31-09
(b) Use a spatula to make sure the sealant is a smooth symmetrical 45-degree fillet (c) Let the sealant dry until it cannot be dented (d) Apply Boeing color 702 white gloss enamel, BMS 10-60 to the not painted surface of the antenna plate. (10) Remove the DO-NOT-CLOSE tags and close these circuit breakers: (a) P7 Overhead Circuit Breaker Panel 1) 7A6 NAV RADIO ILS L 2) 7B6 NAV RADIO ILS C 3) 7B17 NAV RADIO ILS R (11) Do this task to remove the door locks: Nose Gear Door Lock Removal (AMM 32-00-30/201). (a) Close the nose gear doors.
EFFECTIVITY
ALL 02.1 Page 407 Oct 25/9834-31-09
GLIDE SLOPE ANTENNA COAXIAL RELAY - REMOVAL/INSTALLATION
________________________________________________________
1. General_______
A. Two glide slope antenna coaxial relays are installed one each on panels P31 and P32. The panels are located on the forward side of station 400 bulkhead in the lower forward equipment bay. The relays are secured to the panels by screws and have provisions for connecting 3 coaxial cables and one electrical connector. On LH 011-099; AZ 221-299; SN 351-399; IB 406-499, a third coaxial relay for glide slope antenna system No. 3 is installed on panel P31.
2. Equipment and Materials_______________________
A. Nose landing gear door lock - 7MIT65B04012
B. Ferrite bar 1.20 X 1.45 X 0.03 inches in size - Ferroxcube Corporation 3E2A or equivalent. (2 required)
3. Referenced Procedures_____________________
A. 34-31-00, VOR/ILS Navigation System - Adjustment/Test
4. Remove Glide Slope Antenna Coaxial Relay________________________________________
A. Examine all glide slope antenna coaxial relays (switches) to determine that the serial number of each relay with a part number 910C31200 has a suffix "E" (e.i., 357E).
NOTE: When you replace the coaxial relay with a Transco coaxial relay
____ part number 910C31200, make sure that the serial number has a suffix "E".
B. Disconnect coaxial cables and electrical connector from relay.
C. Remove screws securing relay to panel. Use care not to drop relay as it comes loose from support.
5. Install Glide Slope Antenna Coaxial Relay_________________________________________
A. Position relay to mounting base and install screws.
B. Connect cables to relay and hand-tighten.
C. AF 157, 161, 183, 184 WITHOUT SB 34-2264, perform prepare-to-test and glide slope test portions of system test (Ref 34-31-00).
D. LH 011-099; AF 115-156, 158-160, 162-182, 185-199, AND AF 157, 161, 183, 184 WITH SB 34-2264; AZ 221-299; SN 351-399; IB 406-400; AT ALL; GN ALL; MD ALL AND VM ALL, test coaxial relays for satisfactory operation as follows:
(1)
Install nose gear door locks.
WARNING:_______REFER TO 32-00-30 FOR LOCK INSTALLATION PROCEDURE. RAPID ACTION OF DOORS MAY INJURE PERSONNEL OR DAMAGE EQUIPMENT IF LOCKS ARE NOT PROPERLY INSTALLED.
(2)
Provide electrical power (Ref 24-22-00).
(3)
Check that appropriate circuit breakers on panels P7, P12 and P126 are closed.
EFFECTIVITY
LH 011-099; AF 115-199;
AZ 221-299; SN 351-399;
IB 406-499; AT ALL; GN ALL;
MD ALL; VM ALL 34 Page 401 Oct 25/9534-31-10
GLIDE SLOPE ANTENNA HYBRIDS, B554 AND B555 AND COAXIAL RELAYS, B404 AND B405
SEE A
VOR/ILS RECEIVER VOR/ILS RECEIVER
NO. 3 NO. 1
P31 PANEL
SEE B
VOR/ILS
RECEIVER
P32 PANELNO. 2
GLIDE SLOPE ANTENNA SWITCHING PANEL
A
LEFT AND CENTER G/S ANTENNA HYBRID, B554
LEFT G/S COAXIAL RELAY, B404
RIGHT G/S ANTENNA HYBRID, B555
RIGHT G/S COAXIAL RELAY, B405
REMOVAL AND INSTALLATION
B
Glide Slope Antenna Coaxial Relay Installation Figure 401 (Sheet 1)
EFFECTIVITYAF 115-151 AND AF 157,161,183,184799 Page 402 WITHOUT SB 34-2264 Sep 25/94
34-31-10
HYBRID, B554 AND GLIDE SLOPE ANTENNA B404 AND B405 COAXIAL RELAYS, NO. 3 RECEIVER VOR/ILS NO. 1 RECEIVER VOR/ILS
SEE C
P31 PANEL
NO. 2 RECEIVER VOR/ILS P32 PANEL SEE D
GLIDE SLOPE ANTENNA SWITCHING PANEL C
LEFT G/S COAXIAL RELAY, B404
RIGHT G/S COAXIAL RELAY, B405
REMOVAL AND INSTALLATION
D
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747飛機維護手冊AMM CHAPTER 34 - NAVIGATION 第34章導航2(43)
