Deactivation of the Reservoir Low-Level Warning

TASK 29-30-00-040-003-A
Deactivation of the Reservoir Low-Level Warning

Task Summary

Access	Test	Specific Tools	Mhr	E/T	Nb Men
YES	NO	NO	0.5	0.5	1

1. Reason for the Job
MMEL 29-09-05A
HYD G(B)(Y) RSVR LO LVL ALERT (FAA ONLY)

NOTE: The ECAM caution message -RSVR LO LVL- can be incorrectly shown because of a defective low-level switch. This condition is identified if the related PUMP FAULT LIGHT comes on (for the Blue hydraulic system) or, at the same time, the related PUMP FAULT light and PTU FAULT light come on (for the Green and/or Yellow hydraulic systems). When one or two of these lights are 'ON', do a check of the related low-level switch (Ref. AMM TASK 29-31-00-710-001). Deactivate the switch if you cannot repair or replace it. Push the 'CLEAR' button on the ECAM to clear the -RSVR LO LVL- caution message. The PUMP FAULT lights will come on in if there is a pump failure. The subsequent quantity differences will be shown by the -RSVR LO LVL- caution message on the ECAM when the transmitter is in operation. Although, for this condition, the PUMP FAULT lights will not operate as usual because of the deactivated low-level switch.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	2	CAP - PROTECTION
No specific	AR	TIE WRAP(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
196BB, 197FB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 12-12-29-611-002-A	Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
Location of the Reservoir Low-Level Switches

3. Job Set-up
Subtask 29-30-00-010-054-A

A. Get Access
(1) Open these access doors:

For the Green reservoir, open one main gear door (Ref. AMM TASK 32-12-00-010-001)

NOTE: You can open one of the two doors, but access is better from the RH side.

For the Blue reservoir, open the access door 197FB
For the Yellow reservoir, open the access door 196BB and the RH main door of the main gear (Ref. AMM TASK 32-12-00-010-001).

4. Procedure
Subtask 29-30-00-040-052-A

A. Deactivation of the Reservoir Low-Level Switches
(1) Disconnect the applicable electrical connector from the low-level switch of the related hydraulic reservoir.
(2) Install a CAP - PROTECTION on the disconnected electrical connector and on the receptacle of the reservoir.
(3) Use a TIE WRAP(S) and attach the cable to a part of the adjacent structure.
(4) Make sure that oil or other liquids cannot go into the connector end.

Subtask 29-30-00-210-052-A

B. Visual Check of the Reservoir Content
(1) Do a check of the content of the deactivated reservoir with the quantity indicator on the reservoir before each flight.
(2) If necessary, fill the reservoir to the correct level (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).

Subtask 29-30-00-941-050-A

C. Put a warning notice in the flight compartment to tell the crew that the fluid low-level warning-system does not operate.

5. Close-up
Subtask 29-30-00-410-058-A

A. Close Access
(1) Close these access doors:

For the Green reservoir, close the main gear door (Ref. AMM TASK 32-12-00-410-001)
For the Blue reservoir, close the access door 197FB
For the Yellow reservoir, close the access door 196BB and the RH main door of the main gear (Ref. AMM TASK 32-12-00-410-001).

(2) Make an entry in the logbook.

[Rev.10 from 2021] 2026.04.01 00:27:14 UTC