(2)
 On the panel 25VU, make sure that the APU MASTER SW pushbutton switch 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 49-51-16-865-050
 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 49-51-16-010-050
 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 switch 11LJ to the on position.

 4. Procedure
_________
 (Ref. Fig. 401/TASK 49-51-16-991-001) Subtask 49-51-16-020-050
 A. Removal of the Differtial Pressure Transducer (8043KM)
 (1)
 Disconnect the electrical connector (7) from the differential pressure transducer (8043KM) (6).

 (2)
 Put blanking caps on the disconnected electrical connectors.

 (3)
 Remove and discard the safety wire from the bolts (1) and (10).

 (4)
 Remove the bolt (1) and the washer (2), the tube retainer (3) and carefully move the tube (12) away from the differential pressure transducer (8043KM) (6).

 (5)
 Remove and discard the packing (11) from the tube (12).

 (6)
 Remove the bolt (10) from the tube (9).

 (7)
 Remove the bolts (4) and move the cable bracket (5) away from the differential pressure transducer (8043KM) (6).

 (8)
 Remove the differential pressure transducer (8043KM) (6) away from the tube (9).

 (9)
 Remove and discard the packing (8) from the tube (9).

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

 Transducer - Differential Pressure
 Figure 401/TASK 49-51-16-991-001

 CES  TASK 49-51-16-400-001 Installation of the Differential Pressure Transducer (8043KM) (GTCP 36-300) 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  access platform 3.5 m (11 ft. 6 in.)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific  lockwire-corrosion resistant steel 0.8 mm (0.032 in) dia
 C. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
8 packing 49-51-13 01 -060 11 packing 49-51-13 01 -060

 D. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
 the Ground Connector 49-00-00-710-001 Self-Test of the ECB (59KD) (GTCP 36-300) 49-00-00-860-003 APU Start by External Power (GTCP 36-300) 49-00-00-860-004 APU Shutdown by External Power (GTCP 36-300) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-51-16-991-001 Fig. 401
 3. Job Set-up
__________
 Subtask 49-51-16-860-051
 A. Aircraft Maintenance Configuration
 (1)
 Energize the ground service network
 (Ref. TASK 24-42-00-861-001).
　
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