Operational Test of Crossfeed Valve Using Individual
Motors: ...
Removal of the Fuel Crossfeed Valve (10QM)
Installation of the Fuel Crossfeed Valve (10QM)
Removal of the Crossfeed Valve Actuator 5QE
Installation of the Crossfeed Valve Actuator 5QE
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞28-23-00∞∞∞∞∞∞∞∞∞∞Page 201
Nov 01/03 CES
3. Fault Confirmation
__________________
R A. Table of the circuit breakers referred to in this procedure:
R -------------------------------------------------------------------------------R PANEL DESIGNATION IDENT. LOCATION R -------------------------------------------------------------------------------
R 49VU FUEL/X FEED/VALVE/MOT1 2QE A12
R 121VU FUEL/X FEED/VALVE/MOT2 1QE M24
R B. Test
R (1) Do the procedure for the Operational Test of the Crossfeed Valve R Using Individual Motors (Ref. AMM TASK 28-23-00-720-001).
R NOTE : During the operational test when the C/B-2QE is set to open,
____ R the OPEN legend of the P/BSW-4QE will not come on. This is R because the C/B-2QE also supplies 28VDC to the related lamp R control circuit in the BOARD-ANN LT TEST & INTFC (6LP).
R (2) If, during the test of the crossfeed system:
R
R - the ON and/or the OPEN legends of the P/BSW-4QE do not come on, do
R the procedure (Ref. TASK 28-23-00-810-802)
R
R - the crossfeed valve status (colored position indication) is shown
R XX or is not shown correctly on the ECAM, FUEL system display page,
R do the procedure (Ref. TASK 28-23-00-810-804)
R
R - the crossfeed valve (10QM) does not open and/or close, do Para.
R 4.A.
4. Fault Isolation
_______________
R A. Procedure
R (1) Remove the actuator, crossfeed valve (5QE) (Ref. AMM TASK 28-23-51-000-001).
R (2) Do a check of the crossfeed valve (10QM) as follows:
R (a) Make sure that the drive spindle of the valve can turn freely:
R - through the 90 degrees between the closed and open position
R - through the 90 degrees between the open and closed position.
R (3) If the drive spindle:
R
R - does not turn freely, do step (4)
R
R - turns freely, do step (5).
R
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞28-23-00∞∞∞∞∞∞∞∞∞∞Page 202
Nov 01/03 CESR (4) Replace the VALVE-FUEL CROSSFEED (10QM) (Ref. AMM TASK 28-23-41-000-R 001) and (Ref. AMM TASK 28-23-41-400-001).
R (a) If the fault continues, do step (5).
R (5) Make sure that the P/BSW-4QE, C/B-1QE and C/B-2QE are still set to R the conditions that showed the fault in Para. 3.B. If necessary, R reset the conditions.
R (6) Use a multimeter to do a test for 28VDC between a ground point with R easy access and the actuator (5QE) test point (connector and pin) as R shown in the table that follows.
R -----------------------------------------------------R | MOTOR UNDER TEST | FAULT | TEST POINT | R |------------------|----------------|-----------------|
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