3. Job Set-up
__________ Subtask 49-72-15-860-067
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 49-72-15-865-063
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 49-72-15-010-055
C. Get Access
(1)
Put the access platform 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 SW 11LJ to the ON position.
4. Procedure
_________
(Ref. Fig. 201/TASK 49-72-15-991-001) Subtask 49-72-15-020-053
A. Removal of the Thermocouple Probes (8057KM1) or (8057KM2)
(1)
Remove the nut (1), the nut (2) and the washers (3) which attach the electrical connections (4) to the thermocouple probe (8057KM1) or (8057KM2) (6).
(2)
Disconnect the electrical connectors (4).
(3)
Put blanking caps on the disconnected electrical connectors.
(4)
Remove and discard the lockwire from the bolts (5).
(5)
Remove the bolts (5) which attach the thermocouple probe (6) to the turbine casing.
(6)
Remove the thermocouple probe (8057KM1) or (8057KM2) (6).
(7)
Remove and discard the gasket (7).
(8)
Install the blanking plugs to the thermocouple orifice.
(9)
Prevent damage to the component interface and the adjacent area.
Thermocouple Probes
Figure 201/TASK 49-72-15-991-001
CES TASK 49-72-15-100-001
Cleaning of the Thermocouple Probes (8057KM1) and (8057KM2) (GTCP 36-300)
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL MATERIALS
_______ ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
WARNING : DO NOT GET THE COMPOUND ON YOUR SKIN.
_______ IF YOU DO:
-RUB IT OFF IMMEDIATELY WITH A CLEAN CLOTH
-WASH THE SKIN WITH SOAP AND RINSE WITH CLEAN WATER.
WARNING : DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:
_______
-FLUSH IT AWAY WITH CLEAN WATER
-GET MEDICAL AID.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific lint free cloth No specific soft fibre bristle brush
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 11-002 USA MIL-PRF-680 DRY CLEANING SOLVENT (VARSOL/WHITE SPIRIT) (Ref. 20-31-00)
Material No. 11-004 USA MIL-T-81533 1.1.1TRICHLOROETHANE (METHYL CHLOROFORM) (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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
3. Job Set-up
__________
Subtask 49-72-15-860-055
A. Aircraft Maintenance Configuration
(1)
On the panel 25VU make sure that the APU MASTER SW pushbutton switch is off.
(2)
Make sure that there is a warning notice in the cockpit to tell persons not to start the APU.
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