R (9) On the FUEL page, make sure the left wing tank fuel content and the R right wing tank fuel content become stable and stay stable for twenty R (20) minutes.
R (10) If the fuel continues to flow (leaks past the valve) when the R DEFUEL/XFR valve is closed.
R (a) Do a check and replace if necessary:
R 1_ The ACTUATOR-DEFUEL/XFR VALVE (11QU) (Ref. AMM TASK 28-25-53-R 000-001), and (Ref. AMM TASK 28-25-53-400-001).

R 2_ The DEFUEL/XFR VALVE (11QM) (Ref. AMM TASK 28-25-43-000-001),
R and (Ref. AMM TASK 28-25-43-400-001).

R (11) Do the test given in Para. 4.A. Step (3) to Step (6).
R (12) If no fault is found:
R - continue with the procedure which now tests the R refuel valve with
R left wing fuel pumps pressure.

R (13) On the panel 800VU, put the MODE SELECT SWITCH to DEFUEL/XFR
R position.
R (a) Make sure the OPEN light comes on.

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R (b) On the center tank rear spar, make sure the DEFUEL/XFR ACTUATOR
R (11QU) see/feel indicator is in the open position.

R (14) On the FUEL page, make sure the left wing tank fuel content decreases
R and the right wing tank fuel content increases.

R (15) On the panel 800VU, put the REFUEL VALVES switch for the RIGHT wing
R to the NORMAL position.

R (16) On the FUEL page, make sure the left wing tank fuel content and the
R right wing tank fuel content become stable and stay stable for twenty
R (20) minutes.

R (17) If the fuel continues to flow (leaks past the valve) when the
R VALVE-REFUEL, R WING TK (8QU) is closed, do a check and replace if
R necessary:
R - the VALVE-REFUEL, R WING TK (8QU) (Ref. AMM TASK 28-25-51-000-001),
R and (Ref. AMM TASK 28-25-51-400-001).

R (18) If no fault is found:
R - continue with the procedure which now tests the C refuel valve with
R left wing fuel pumps pressure.

R (19) On the panel 800VU, put the REFUEL VALVES switch for the CENTER tank
R to the OPEN position.

R (20) On the FUEL page, make sure the left wing tank fuel content decreases
R and the center tank fuel content increases.

R (21) On the panel 800VU, put the REFUEL VALVES switch for the CENTER tank
R to the NORMAL position.

R (22) On the FUEL page, make sure the left wing tank fuel content and the
R center tank fuel content become stable and stay stable for twenty
R (20) minutes.

R (23) If the fuel continues to flow (leaks past the valve) when the
R VALVE-REFUEL, CTR TK (10QU) is closed, do a check and replace if
R necessary:
R - the VALVE-REFUEL, CTR TK (10QU) (Ref. AMM TASK 28-25-51-000-002),
R and (Ref. AMM TASK 28-25-51-400-002).

R (24) If no fault is found:
R - continue with the procedure which now tests the L refuel valve with
R right wing fuel pumps pressure.

R (25) On the panel 40VU, release (out) the L TK PUMPS P/BSWs to switch off
R the left wing tank fuel pumps.

R (a) Make sure the OFF legends come on.

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R  (26) On the panel 40VU, release (out) the P/BSW-FUEL/X FEED (4QE). 
R  (a) On the FUEL page, make sure the crossfeed valve shows closed. 
R  (b) On the center tank rear spar, make sure the ACTUATOR-FUEL 
R  CROSSFEED VALVE (5QU) see/feel indicator is in the closed 
R  position. 
R  (27) On the panel 800VU, put the REFUEL VALVES switch for the LEFT tank to 
R  the OPEN position. 
R  (28) On the panel 40VU, push (in) the R TK PUMPS P/BSWs. 
R  (a) Make sure the OFF legends go off, and the FAULT legends come on 
R  momentarily. 
R  (29) On the FUEL page, make sure the right wing tank fuel content 
R  decreases and the left wing tank fuel content increases. 
R  (30) On the panel 800VU, put the REFUEL VALVES switch for the LEFT wing to 
R  the NORMAL position. 
R  (31) On the FUEL page, make sure the left wing tank fuel content and the 
R  right wing tank fuel content become stable and stay stable for twenty 
R  (20) minutes. 
R  (32) If the fuel continues to flow (leaks past the valve) when the 
R  VALVE-REFUEL, L WING TK (7QU) is closed, do a check and replace if 
　
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 FUEL 燃油2(30)