3. On the DRIVING TOOL connected to  On this wheel: the wheel with the replaced tachometer:
 -decrease the speed to zero. - the brake pistons retract.
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 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------NOTE : You must release the brake
____
 pedals before you stop the
 last tachometer.

 4. Release the brake pedals. On all the brakes:
 -the pistons are retracted.
 5. On the DRIVING TOOL connected to the wheel of the opposite landing gear:
 -decrease the speed to zero.
 NOTE : The braking system goes
____
 back to the usual
 operating condition 20
 seconds after the test

 Subtask 32-42-00-740-051
 B. Reset the related Spoiler Elevator Computers
 (1)
 Energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-861-002).

 (2)
 Set the related SEC(s).

 (a)
 For the tachometer(s) 19GG and/or 22GG: - on the overhead panel 23VU, release the FLT CTL SEC 3 pushbutton switch, then push it in

 - on the overhead panel 24VU, release the FLT CTL SEC 2 pushbutton switch, then push it in.

 (b)
 For the tachometer(s) 20GG and/or 21GG:

 - on the overhead panel 23VU, release the FLT CTL SEC 1 pushbutton switch, then push it in.
 (3)
 Do the BITE test of the EFCS computers (Ref. TASK 27-96-00-740-001).

 (4)
 Make sure that the MCDU shows no maintenance message related to the tachometer.

 (5)
 De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).

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 C. Aircraft Maintenance Configuration
 (1)
 Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001).

 (2)
 Do the ADIRS stop procedure (Ref. TASK 34-10-00-860-005).

 (3)
 De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).

 (4)
 Remove the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190001) or the DRIVING ADAPTOR (98D32403004000) with the drilling machines.

 5. Close-up
________ Subtask 32-42-00-942-058
 A. Removal of Equipment
 (1) Make sure that the work area is clean and clear of tool(s) and other items.
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 TASK 32-42-00-710-005 Operational test of the autobrake deceleration rate arming WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
 WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
 WARNING : MAKE SURE THAT THE CONTROLS AGREE WITH THE POSITION OF THE ITEMS THEY
_______ OPERATE BEFORE YOU PRESSURIZE A HYDRAULIC SYSTEM.
 WARNING : PRESSURIZE ONLY THE HYDRAULIC SYSTEM(S) THAT IS (ARE) NECESSARY FOR
_______ THE TASK. ISOLATE THE OTHER HYDRAULIC SYSTEM(S) BEFORE YOU SUPPLY HYDRAULIC POWER TO THE AIRCRAFT.
 WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
 1. Reason for the Job__________________ Self Explanatory
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific warning notice
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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
 29-23-00-863-001  Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
 29-23-00-864-001  Depressurize the Green and Yellow Hydraulic Systems
 after Operation of the PTU 34-10-00-860-004 IR Alignment Procedure 34-10-00-860-005 ADIRS Stop Procedure
　
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