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No specific blanking caps
No specific protective covers
No specific soft-jawed pliers
No specific warning notice
No specific access platform 1.5 m (4 ft. 11 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-36-00-010-040 Opening of the Thrust Reverser Doors
73-11-70-991-300 Fig. 401
3. Job Set-up
__________
Subtask 73-11-70-941-051
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
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(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 73-11-70-010-053
B. Get Access
(1) Open the fan cowl doors (Ref. TASK 71-13-00-010-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(2) Put the access platform in position. Subtask 73-11-70-040-052
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041). Subtask 73-11-70-010-054
D. Open the thrust reverser doors (Ref. TASK 78-36-00-010-040):
FOR 1000EM1
451AL, 452AR
FOR 1000EM2
461AL, 462AR
4. Procedure
_________ (Ref. Fig. 401/TASK 73-11-70-991-300) Subtask 73-11-70-020-052
A. Remove the Burner Staging Valve as follows:
(1) Disconnect the electrical connectors , Channel A (50) and Channel B
(60) , from the BSV (70). If necessary, use soft-jawed pliers.
(2) Put blanking caps on the disconnected electrical connectors.
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R Burner Staging Valve (BSV) Figure 401/TASK 73-11-70-991-300
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(3) Remove the bolts (10, 40) and nuts (30, 80) that attach the BSV (70) to the fuel supply manifold.
(4) Remove the BSV (70) from the fuel supply manifold.
(5) Remove the gasket (20) and keep it.
(6) Install protective covers on the open ports of the BSV (70) and the fuel supply manifold.
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TASK 73-11-70-400-002
Installation of the Burner Staging Valve (BSV)
1. Reason for the Job
__________________
R This procedure is only necessary on engines that have not implemented SB R 73-0112. Service Bulletin CFM56-5B SB 73-0112 deleted the BSV system. R
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific soft jawed pliers
No specific warning notice
No specific access platform 1.5 m (4 ft. 11 in.)
No specific Torque Wrench : range 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM 发动机燃油和控制 ENGINE FUEL AND CONTRO(80)
