3. Put the L/G normal control lever 6GA to DOWN.
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ACTION RESULT -------------------------------------------------------------------------------
4.
On the MCDU, push the line key adjacemt to the RETURN indication until the CFDS menu page comes into view:
5.
Close-up
________
Subtask 32-42-00-865-060
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 2GA
Subtask 32-42-00-860-052
B. Put the aircraft back to the serviceable condition.
(1)
On the MCDU, push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
(2)
Put the aircraft back to the ground configuration (Ref. TASK 32-00-00-860-002).
(3)
Close the NLG and MLG doors (Ref. TASK 32-12-00-410-001), (Ref. TASK 32-22-00-410-001).
(4)
Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001).
(5)
De-energize the aircraft electrical circuits. (Ref. TASK 24-41-00-862-002)
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TASK 32-42-00-720-002
Functional test of the tachometers
1. Reason for the Job
__________________
The test below is to do the check of the tachometer for correct operation after a replacement of one of them.
NOTE : If the MLG WHEEL TACHYMETER DRIVING TOOL is not available, as an
____
alternative you can use:
-two standard drilling machines with the DRIVING ADAPTOR (98D32403003000).
NOTE : You must do this test if there is a risk of wiring cross connection
____ between two tachometers (replacement of the MLG or of the electrical harness of the MLG). If only one tachometer is replaced or disconnected, THIS TEST IS NOT MANDATORY as the BSCU will do the automatic check of the tachometer.The BSCU will do this check during aircraft roll between 10 m/s and 40 m/s (32.81 ft/s and 131.23 ft/s) to make sure that the tachometer operates correctly.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific standard drilling machines (rotation speed higher
than 900 rpm) 355M03190000 1 MLG WHEEL TACHYMETER DRIVING TOOL 98D32403003000 2 DRIVING ADAPTOR
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B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning) 29-10-00-864-001 Depressurize the Green Hydraulic System 29-23-00-863-001 Pressurize the Green Hydraulic System from the Yellow
Hydraulic System through the PTU with the Electric
Pump 34-10-00-860-004 IR Alignment Procedure 34-10-00-860-005 ADIRS Stop Procedure
3. Job Set-up
__________
Subtask 32-42-00-860-059
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
Pressurize the Green hydraulic system (Ref. TASK 29-23-00-863-001).
(3)
On the panel 402VU, make sure that the ANTI SKID selector switch is in the ON position.
(4)
Do the IR alignment procedure (Ref. TASK 34-10-00-860-004).
(5)
Install the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190000) on the wheel on which the tachometer has been replaced and on a wheel of the opposite landing gear. Or as an alternative, if the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190000) is not available:
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