W DOC AIRBUS | TSM A320F

Reservoir Fluid-Level Indication replaced by amber XX for the Blue Hydraulic System

TASK 29-12-00-810-819-A
Reservoir Fluid-Level Indication replaced by amber XX for the Blue Hydraulic System

1. Possible Causes
  • quantity indicator of the Blue hydraulic reservoir
  • quantity indicator of the Green hydraulic reservoir
  • quantity indicator of the Yellow hydraulic reservoir
  • wiring
  • C/B-HYDRAULIC/HYD/QTY/IND [1831GQ]
  • terminal block (7502VT)
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 29-11-00-810-815-A
Reservoir Fluid-Level Indication replaced by amber XX for the Green Hydraulic System
TSM TASK 29-13-00-810-818-A
Reservoir Fluid-Level Indication replaced by amber XX for the Yellow Hydraulic System
AMM 24-41-00-861-002
Energize the Aircraft Electrical Circuits from the External Power
AMM 29-11-41-000-002
Removal of the Quantity Indicator of the Green Hydraulic Reservoir
AMM 29-11-41-400-002
Installation of the Quantity Indicator of the Green Hydraulic Reservoir
AMM 29-12-41-000-002
Removal of the Quantity Indicator of the Blue Hydraulic Reservoir
AMM 29-12-41-400-002
Installation of the Quantity Indicator of the Blue Hydraulic System
AMM 29-13-41-000-003
Removal of the Quantity Indicator of the Yellow Hydraulic Reservoir
AMM 29-13-41-400-003
Installation of the Quantity Indicator of the Yellow Hydraulic Reservoir
AMM 29-31-00-710-001
Functional Check of Reservoir Low Level Warning
AWM 293102
AMM 31-60-00-860-001
EIS Start Procedure
3. Fault Confirmation
Subtask 29-12-00-865-065-A
A. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
121VUHYDRAULIC/HYD/QTY/IND1831GQP35
Subtask 29-12-00-860-077-A
B. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
AMM 24-41-00-861-002.
   (2) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
AMM 31-60-00-860-001.
   (3) On the ECAM control panel on the center pedestal, push the HYD pushbutton switch. Make sure that the HYD page is shown on the system display of the ECAM.
   (4) Look for fault indications on the lower ECAM DU.
   (5) Monitor the condition of the circuit breaker 1831GQ.
4. Fault Isolation
Subtask 29-12-00-810-077-A
A. If the Fault Confirmation gives:
  • The reservoir fluid level indication of the Green, Blue and Yellow hydraulic system is replaced by amber XX on the lower ECAM DU.
  • The circuit breaker 1831GQ is open:
   (1) Do a check for a defective hydraulic quantity transmitter as follows:
     (a) Remove the electrical connector from the quantity indicator of the Blue hydraulic reservoir .
     (b) Close the circuit breaker 1831GQ:
       1 If the circuit breaker 1831GQ stays closed:
       2 If the circuit breaker 1831GQ opens:
         a Connect the electrical connector to the quantity indicator of the Blue hydraulic reservoir.
     (c) Do a check of the
     (d) Replace the applicable quantity indicator which causes the circuit breaker 1831GQ to open:
   (2) If the fault continues:
     (a) Do a check for continuity between:
  • the CB (1831GQ) and the pin C of the terminal block (7502VT) AWM 293102.
       1 If there is no continuity:
         a Repair the wiring between the CB (1831GQ) and the pin C of the terminal block (7502VT) AWM 293102.
         b If the fault continues:
  • Replace the C/B-HYDRAULIC/HYD/QTY/IND [1831GQ] .
       2 If there is continuity:
  • Do a check for continuity between the pin C of the terminal block (7502VT) and the pins E, J, K of the terminal block (7502VT) AWM 293102.
         a If there is no continuity:
  • Replace the terminal block (7502VT).
Subtask 29-12-00-710-071-A
B. Do the operational test of the fluid low level warning AMM 29-31-00-710-001 to make sure that the operation is correct (no fault indications shown).
[Rev.8 from Aug 2018] 2026.04.04 04:39:54 UTC
"AVIABRAIN" 2025