R (2) If the quantity shown is less than 3.5 l (0.9245 USgal):

R (a) Do a check of the engine pump for a possible cavitation condition
R (Ref. AMM TASK 29-00-00-280-006).

R NOTE : A cavitation condition of the engine pump is possible when

____ R the engine pump operates with the engine pump fire valve R closed (if you set the ENG 1 (2) FIRE pushbutton on the R Eng/APU fire panel), or with the reservoir below the low R level (ECAM indication).
R (b) Make sure that the drain valve of the hydraulic reservoir has no
R leaks.

R 1_ If the drain valve has a leak:
R - replace the drain valve.

R 2_ If the drain valve has no leaks;
R - do a check of the hydraulic lines and the components for
R leaks (Ref. AMM TASK 29-00-00-790-001) and repair them.

R 3_ If the fault continues:
R - do a check of the internal leakage of the Yellow hydraulic
R system (Ref. AMM TASK 29-00-00-280-003).

R a_ If the internal leakage rate is too high:
R - repair the defective component.

R b_ If the fault continues, or you can not find a defective
R component:
R - remove a fuel sample from each water drain-valve (Ref.
R AMM TASK 12-32-28-281-001),
R - do a check for contamination of the fuel with hydraulic
R fluid after each removal of a fuel sample.

R c_ If you find hydraulic fluid contamination in one or more
R fuel samples:
R - do a check of the hydraulic lines and components in the
R applicable tank area for leaks and repair them.

 「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 ∞∞29-13-00∞∞∞∞∞∞∞∞∞∞Page 203
 Feb 01/02 CES B. If the Fault Confirmation gives:

 -the message HYD Y RSVR LO LVL on the upper ECAM DU,
 -the contents indication (shows low fluid level) on the lower ECAM DU in
 amber:

 Do a visual check of the quantity shown on the mechanical indicator of
 the Yellow reservoir.

R (1) If the quantity shown is more than or equal to 2.6 l (0.6868 USgal):
 (a) Do a check of the engine pump for a possible cavitation condition (Ref. AMM TASK 29-00-00-280-006).
 NOTE : A cavitation condition of the engine pump is possible when
____ the engine pump operates with the engine pump fire valve closed (if you set the ENG 1 (2) FIRE pushbutton on the Eng/APU fire panel), or with the reservoir below the low level (ECAM indication).
 (b) Do a check for 26 VAC between: QUANTITY INDICATOR - TRANSMITTER connector A/D and connector A/E (Ref. ASM 29-31/01).
 1 If there is no 26 VAC:
_

 - do a check of the wiring between: QUANTITY INDICATOR - TRANSMITTER connector A/D and CB (1831GQ) and repair the wiring as necessary (Ref. ASM 29-31/01).
 2 If the fault continues:
_

 - do a check for a ground signal between: QUANTITY INDICATOR - TRANSMITTER connector A/E and ground (Ref. ASM 29-31/01).
 a If there is no ground signal:
_ - repair the wiring between QUANTITY INDICATOR -TRANSMITTER connector A/E and ground (Ref. ASM 29-31/01).
 (c) If the fault continues:

 - replace the QUANTITY INDICATOR - TRANSMITTER (Ref. AMM TASK 29-13-41-000-003) and (Ref. AMM TASK 29-13-41-400-003).

 (d) If the fault continues:

 - do the troubleshooting procedure for the loss of the YELLOW RSVR QTY input of the SDAC-1 (1WV1) (Ref. TASK 31-54-00-810-835).
 1 If the fault continues:
_

 - do the troubleshooting procedure for the loss of the YELLOW RSVR QTY input of the SDAC-2 (1WV2) (Ref. TASK 31-54-00-810-836).
 「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 ∞∞29-13-00∞∞∞∞∞∞∞∞∞∞Page 204
 Feb 01/02 CES

R (2) If the quantity shown is less than 2.6 l (0.6868 USgal):

R (a) Do a check of the engine pump for a possible cavitation condition R (Ref. AMM TASK 29-00-00-280-006).
R NOTE : A cavitation condition of the engine pump is possible when
____ R the engine pump operates with the engine pump fire valve R closed (if you set the ENG 1 (2) FIRE pushbutton on the R Eng/APU fire panel), or with the reservoir below the low R level (ECAM indication).
R (b) Do a check for 28 VDC between:
R LOW LEVEL SWITCH connector B/A and connector B/C (Ref. ASM 29-R 31/02).

R  1_  If there is no 28 VDC:
R  - do a check of the wiring between: 
R  LOW LEVEL SWITCH connector B/C and CB (1832GQ) and repair 
R  the wiring as necessary (Ref. ASM 29-31/02). 

R 2_ If there is 28VDC:
R - replace the LOW LEVEL SWITCH (Ref. AMM TASK 29-13-41-000-R 003) and (Ref. AMM TASK 29-13-41-400-003).
　
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