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 28-00-00-910-001 Fuel Safety Procedures 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 49-00-00-860-008 APU Start by External Power (131-9(A)) 49-00-00-860-009 APU Shutdown by External Power (131-9(A)) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-32-41-991-003 Fig. 201
3. Job Set-up
__________
Subtask 49-32-41-941-054
A. Safety Precautions
(1) Obey the Fuel Safety Procedures (Ref. TASK 28-00-00-910-001).
Subtask 49-32-41-860-052
B. 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 49-32-41-865-057
C. 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 49-32-41-010-052
D. Get Access
(1)
Put the access platform below the APU access doors 315AL and 316AR.
(2)
Open the access doors 315AL, 316AR (Ref. TASK 52-41-00-010-001).
(3)
Set the LIGHT control SW 11LJ to the ON position.
4. Procedure
_________ (Ref. Fig. 201/TASK 49-32-41-991-003) Subtask 49-32-41-020-052
A. Removal of the Filter.
(1)
Put the container below the FCU (1).
(2)
Remove the filter housing (2) from the FCU (1).
(3)
Remove and discard the filter element (4) and O-rings (3) and (5). Subtask 49-32-41-420-052
B.
Installation of the Filter.
(1)
Lubricate the new O-rings (5) and O-ring (3) with OILS (Material No. 03-002).
(2)
Install the new O-rings (3) and (5) on the filter (4).
(3)
Install the new filter (4) into the filter housing (2).
(4)
Install the filter housing (2) into the FCU and tighten by hand.
Fuel Filter
Figure 201/TASK 49-32-41-991-003
EFF : 001-049, 101-105, 107-107, 151-199, 49-32-41Page 204
201-210, Config-1 Aug 01/05
Subtask 49-32-41-865-058
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 49-32-41-710-052
D. Start and operate the APU.
(1)
Close the APU access doors (Ref. TASK 52-41-00-410-001).
(2)
Start the APU (Ref. TASK 49-00-00-860-008).
(3)
Allow the APU to run for 5 minutes.
(4)
Shutdown the APU (Ref. TASK 49-00-00-860-009).
(5)
Open the APU access doors 315AL, 136AR (Ref. TASK 52-41-00-010-001).
(6)
Check for leaks at the filter housing (2).
NOTE : No leakage are permitted.
____
________
5. Close-up
Subtask 49-32-41-410-053
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3)
Set the LIGHT control SW 11LJ to the OFF position.
(4)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(5)
Remove the access platform(s).
Subtask 49-32-41-860-053
B. Aircraft Maintenance Configuration
(1)
Pressurize the reservoirs of the hydraulic systems. (Ref. TASK 29-14-00-614-002).
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