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Subtask 49-23-51-865-059 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD. Subtask 49-23-51-710-051 C. Do the operational test of the APU (Ref. TASK 49-00-00-710-008). (1) Do a check for leaks on the inlet guide-vane actuator and the fuel tube connections. NOTE : Leaks are not permitted. ____ 5. Close-up
________ Subtask 49-23-51-410-052 A. Close Access (1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Set the LIGHT control switch 11LJ to the off position.
(3) Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(4) Remove the access platform(s).
(5) Remove the warning notice(s).
TASK 49-23-51-710-001 Push/Pull Test of the Inlet Guide Vane Mechanism (8014KM) (APS 3200) 1. Reason for the Job __________________ Self Explanatory 2. Job Set-up Information ______________________ A. Fixtures, Tools, Test and Support Equipment -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION ------------------------------------------------------------------------------- No specific axial-scale measuring device No specific circuit breaker(s) safety clip(s) No specific access platform 2.5 m (8 ft. 2 in.)
B. Referenced Information -------------------------------------------------------------------------------REFERENCE DESIGNATION ------------------------------------------------------------------------------- 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action 49-11-11-000-003 Removal of the Power Plant (APU) (APS 3200) 49-23-51-000-003 Removal of the Inlet Guide Vane Actuator (8014KM) (APS 3200) 49-23-51-400-003 Installation of the Inlet Guide Vane Actuator (8014KM) (APS 3200) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 3. Job Set-up __________ Subtask 49-23-51-860-055 A. Aircraft Maintenance Configuration (1) On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(2) Put a warning notice in the cockpit to tell persons not to start the APU.
(3) Make sure that ground fire extinguishing equipment is available.
(4) Make sure that hydraulic systems are depressurized (Ref. TASK 29-00-00-864-001).
Subtask 49-23-51-865-062 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 49-23-51-010-057 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 _________ Subtask 49-23-51-710-052 A. Test of the Inlet Guide Vane (IGV) mechanism (IGV Actuator installed) (1) Pull the IGV mechanism manually to the OPEN position.
(2) Disconnect the quick-disconnect pin from the clevis of the IGV rod.
(3) Push the IGV mechanism manually back to the CLOSED position. NOTE : A sign of a serviceable IGV mechanism is a smooth and easy
____ movement of the IGV rod.
(4) Engage the axial-scale measuring device through the ring of the quick-disconnect pin.
(5) Put the quick-disconnect pin back to the clevis of the IGV rod.
(6) Measure the load necessary to pull the IGV mechanism back to the OPEN position. Make sure that the maximum load is not more than 11.3 daN (25.4034 lbf).
(a) If the measured load is lower than the maximum load:
-IGV mechanism is serviceable.
(b) If the measured load is higher than the maximum load:
- remove the APU (Ref. TASK 49-11-11-000-003). Subtask 49-23-51-710-053
B. Test of the Inlet Guide Vane (IGV) mechanism (IGV Actuator removed)
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