3. Job Set-up
__________ Subtask 49-16-41-860-063
A. Aircraft Maintenance Configuration
(1)
Make sure that the warning notice is in position on panel 25VU to tell persons not to start the APU.
(2)
Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001) .
(3)
Make sure that the hydraulic systems are depressurized (Ref. TASK 29-14-00-614-001).
(4)
Make sure that the access platform is in position below the access doors 312AR.
(5)
Make sure that the access door 312AR is open.
(6)
Make sure that the LIGHT control switch 3LJ is set to the ON position.
(7)
Make sure that the access platform is in position below the APU access doors 315AL, 316AR and the maintenance door 314AR.
(8)
Make sure that the maintenance door 314AR is open.
(9)
Make sure that the APU access doors 315AL, 316AR are open (Ref. TASK 52-41-00-010-001) .
(10)
Make sure that the LIGHT control swtich 11LJ is set to the ON position.
(11)
Make sure that the air intake flap is removed (Ref. TASK 49-16-43-000-001).
4. Procedure
_________
(Ref. Fig. 401/TASK 49-16-41-991-006) Subtask 49-16-41-140-050
A. Preparation for installation. WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THIS/THESE
_______ MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES, GOGGLES AND A MASK.
(1)
Remove all used sealant from component interface and/or adjacent area of the aircraft structure with a non-metallic scraper.
(2)
Clean the component interface of the aircraft structure with CLEANING AGENTS (Material No. 11-004) and a lint-free cloth.
(3)
Make sure that the component interface of the fixed diverter (12) is clean of sealant.
NOTE : If there is sealant on the component interface of the fixed
____ diverter, clean it with CLEANING AGENTS (Material No. 11-004) and a lint-free cloth.
Subtask 49-16-41-420-055
B. Installation of the fixed Diverter. WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THIS/THESE
_______ MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES AND GOGGLES.
(1)
Apply SPECIAL MATERIALS (Material No. 05-013) with a non-metallic scraper to the surfaces of the fixed diverter (12) and the component interface of the aircraft structure.
(2)
Apply SEALANTS (Material No. 09-019) with a non-metallic scraper to the surfaces of the fixed diverter (12) and the component interface of the aircraft structure.
NOTE : Make sure that the screw holes do not show any signs of
____
sealant.
(3)
Put the fixed diverter (12) in position and install the screws (9) and the washers (10), (11) and tighten them.
(4)
Install the screws (7) and the washers (8).
(5)
Apply SEALANTS (Material No. 09-016) to the SEALANT AREA.
(6)
Install the screws (4) and clean them from the seleant with a lint-free cloth.
(7)
Install the washers (6) and the nuts (5).
(8)
Put the shim (3) between the FR77 and the fixed diverter (12). NOTE : If necessary use one or two shims.
____
(9)
Install the screws (1) and the washers (2).
(10)
Make sure that the electrical bonding of the screws (1) is not higher than 2 milliohms (Ref. TASK 20-28-00-720-005).
(11)
Bond the head of the screws (1) with washers (2) (Ref. TASK 20-28-00-912-004).
(12)
Apply a bead of MISCELLANEOUS (Material No. 19-016) between the fixed diverter and the aircraft structure and make it smooth.
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