Reservoir Quantity Indicator
Figure 004
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Hydraulic Reservoir Contents Indication
Figure 005
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The reservoir filling selector gets the signals from all three of the synchros. When it is set to one of the three systems, the signal from the applicable synchro is sent to the reservoir quantity indicator. The applicable system indicator light comes on and the contents of that reservoir are shown on the reservoir quantity indicator.
If the quantity of hydraulic fluid is below a specified minimum, the float of the low level switch operates the switch. Discrete signals are sent to the SDAC and to the overhead panel. The SDAC makes these warnings come on:
-a low level warning on the engine/warning display,
-the MASTER CAUT attention getter,
-a single-chime audio warning.
The signal to the overhead panel makes the applicable FAULT annunciator(s) come on.
If the low level switch does not operate, the SDAC uses the data from the contents transmitter to start low level warning procedure. The warning is generated when the transmitter data show that the contents are below the low level switch threshold. The SDAC makes the warnings occur when the content of the reservoirs are 2.5 l (0.6604 USgal) (Green And Yellow reservoirs) or
1.8 l (0.4755 USgal) (Blue reservoir). In this case, there will be no FAULT indication on the overhead panel.
HYDRAULIC FLUID QUANTITY INDICATING - DEACTIVATION/REACTIVATION
_______________________________________________________________
TASK 29-31-00-040-001
Deactivation of the Reservoir Quantity Indication of the Green and Blue Hydraulic Systems on the ECAM
1. Reason for the Job
__________________
Refer to the MMEL TASK: 29-30-03-A)
Indicating
Indications on the ECAM HYD Page
Reservoir Quantity
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific protective caps No specific tie-wrap No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-12-29-611-001 Fill the Hydraulic Fluid Reservoir with a Hand Pump 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 29-10-00-680-001 Drainage of the Reservoir of the Green Hydraulic System 29-10-00-680-003 Drainage of the Reservoir of the Blue Hydraulic
System 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure 32-12-00-010-001 Open the Main Gear Doors for Access 32-12-00-410-001 Close the Main Gear Doors after Access
3. Job Set-up
__________
Subtask 29-31-00-010-050
A. Open the access door for the reservoir which you want to deactivate:
- one main gear main door for the Green reservoir (Ref. TASK 32-12-00-010-001),
NOTE : You can open any one of the two doors, but access is better from
____
the RH side.
-
197FB for the Blue reservoir.
Subtask 29-31-00-865-050
B.
Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU HYDRAULIC/HYD/QTY/IND 1831GQ P35
4. Procedure
_________
Subtask 29-31-00-040-053
A. Deactivation of the Reservoir Quantity Indication of the Green and Blue Hydraulic Systems
(1)
Disconnect the applicable electrical connector 1000GQ-A or 2000GQ-A from the quantity transmitter of the related reservoir.
(2)
Install protective caps in the connector and the receptacle.
(3)
Use a tie-wrap and secure the cable to a part of the structure. NOTE : Attach the cable to the structure so that the disconnected end
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