(2)
 De-energize the ground service network
 (Ref. TASK 24-42-00-862-001).

 (3)
 Remove the warning notice(s).

 PROBE - TOTAL PRESSURE - REMOVAL/INSTALLATION
_____________________________________________ TASK 49-51-19-000-003 Removal of the Probe - Total Pressure (131-9(A)) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plug
 No specific blanking plugs
 No specific circuit breaker(s) safety clip(s)
 No specific access platform 3.5 m (11 ft. 6 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
 Configuration before Maintenance Action 52-41-00-010-001 Open the APU Doors for Access 49-51-19-991-003 Fig. 401

R  EFF : 001-049, 101-105, 107-107, 151-199, 49-51-19Page 401 201-210, Config-1 Aug 01/05
 CES  3. Job Set-up

__________ Subtask 49-51-19-860-053
 A. Aircraft Maintenance Configuration
 (1)
 Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 (2)
 On the panel 25VU, make sure that the APU MASTER SW p/bsw is OFF.

 (3)
 Put a warning notice in the cockpit to tell persons not to start the APU.

 (4)
 Make sure that hydraulic systems are depressurized
 (Ref. TASK 29-00-00-864-001).

 Subtask 49-51-19-865-057
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
 Subtask 49-51-19-010-054
 C. Get Access
 (1)
 Put the access platform in position below the APU access doors 315AL and 316AR.

 (2)
 Open the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-010-001).

 (3)
 Set the LIGHT control SW 11LJ to the ON position.

R  EFF : 001-049, 101-105, 107-107, 151-199, 49-51-19Page 402 201-210, Config-1 Aug 01/05
 CES  4. Procedure

_________
 (Ref. Fig. 401/TASK 49-51-19-991-003) Subtask 49-51-19-020-052
 A. Removal of the Total Pressure Probe
 (1)
 Remove the screw (1) and disconnect the pipe (2).

 (2)
 Put blanking plugs on the disconnected line ends.

 (3)
 Loosen the nuts (6) from the probe (4).

 (4)
 Turn the probe (4) counter-clockwise and remove the probe (4) from the APU.

 (5)
 Remove and discard the packings (3) and (5).

 (6)
 Install a blanking plug in the APU port.

R  EFF : 001-049, 101-105, 107-107, 151-199, 49-51-19Page 403 201-210, Config-1 Aug 01/05
 CES

 Inlet Pressure Sensor
 Figure 401/TASK 49-51-19-991-003

 CES

 TASK 49-51-19-400-003
 Installation of the Probe - Total Pressure (131-9(A))

 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  Torque Wrench : range 0.00 to 1.20 m.daN
 (0.00 to 9.00 lbf.ft)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
　
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