4. Procedure
_________
 **ON A/C 001-049, 101-149, 151-199, 201-299,

 Subtask 27-96-00-480-050
 A. Install the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190000) on the wheels 1 and 4.

R  **ON A/C 051-099, 301-399, 401-499,
 Subtask 27-96-00-480-050-A
 A. Installation of the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190000)
 (1)
 Remove the impeller assy (Ref. TASK 32-48-51-000-002) from the wheels 1, 2, 3 and 4.

 (2)
 Remove the shroud assy (Ref. TASK 32-48-51-000-005) from the wheels 1, 2, 3 and 4.

 NOTE : The shroud assy has a shroud, a seal and a collar.
____
 (3) Install the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190000) on the wheels 1 and 4.
 **ON A/C ALL
 Subtask 27-96-00-720-052
 B. Operational Test of the Ground Spoiler Extension
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the center pedestal:
 -move the throttle control
 levers to the idle position.

 -preselect the speed brake
 control lever.

 2. On the ECAM control panel on the  On the lower ECAM display unit, the center pedestal: F/CTL page comes into view.

 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
-push the F/CTL key.
 3. On the driving tool:
-set a wheel speed of
approximately 1000 rpm.

 NOTE : In you find a problem, do
____ a BITE test of the EFCS (ground scanning) (Ref. TASK 27-96-00-740-001) and record the maintenance message.
 4. On the center pedestal:
-move the throttle control levers to the climb position.
5.
 Remove the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190000) from the wheels 1 and 4 and install it on the wheels 2 and 3.

 6.
 Do steps 1 to 4 again for the wheels 2 and 3.

On the lower ECAM display unit, thespoilers 1, 2 and 5 extend.
On the lower ECAM display unit, thespoilers 1, 2 and 5 go to the neutralposition.
Same result as steps 1 to 4 with thespoilers 3 and 4.
 **ON A/C 001-049, 101-149, 151-199, 201-299, Subtask 27-96-00-080-050
 C. Remove the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190000) from the wheels 2 and 3.

R **ON A/C 051-099, 301-399, 401-499,
 Subtask 27-96-00-080-050-A
 C. Removal of the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190000)
 (1)
 Remove the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190000) from the wheels 2 and 3.

 (2)
 Install the shroud assy (Ref. TASK 32-48-51-400-005) on the wheels 1, 2, 3 and 4.

 NOTE : The shroud assy has a shroud, a seal ands a collar.
____
 (3) Install the impeller assy (Ref. TASK 32-48-51-400-002) on the wheels 1, 2, 3 and 4.
 **ON A/C ALL
 5. Close-up
________
 Subtask 27-96-00-860-093

 A. Put the aircraft back to its initial configuration
 (1)
 Depressurize the three hydraulic systems (Ref. TASK 29-10-00-864-001), (Ref. TASK 29-10-00-864-002) and (Ref. TASK 29-10-00-864-003).

 (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).