(4)
Do a check of the fuel filter element, replace if necessary (Ref. TASK 49-32-11-210-001).
(5)
Purge the APU fuel line (Ref. TASK 28-22-00-710-001).
(6)
Do the operational test of the APU (Ref. TASK 49-00-00-710-004). Run the APU for at least five minutes.
(7)
Do check of the APU and the APU connections for fuel, oil and air leaks during operation.
(8)
Do the check of the oil filter elements for contamination again, replace if necessary (Ref. TASK 49-91-41-200-001) and (Ref. TASK 49-91-45-200-002).
(9)
Do the check of the fuel filter element again, replace if necessary (Ref. TASK 49-32-11-210-001).
(10)
Do the check of the oil level again (Ref. TASK 49-90-00-600-001).
(11)
Return the APU to normal operation.
5. Close-up
________ Subtask 49-20-00-860-059
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close access doors 315AL and 316AR (Ref. TASK 52-41-00-410-001)
(3)
Remove the access platform.
ENGINE ((131-9(A))) - SERVICING
_______________________________
TASK 49-20-00-600-003
Preservation/Storage/Return to Service of APU (131-9(A))
WARNING : MAKE SURE THAT YOU HAVE THE CORRECT FIRE FIGHTING EQUIPMENT
_______ AVAILABLE.
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
__________________
The preservation procedure of the APU is carried out to prevent internal and
external corrosion and deterioration when the APU is not in service.
The preservation procedure will give the maximum protection and must be
carried out in clean and dry conditions.
Storage times and procedures are given in Table 301.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific desiccant (silica gel) No specific humidity indicator No specific protective covers No specific warning label No specific warning notice No specific water-vapor proof bag No specific container 10 l (2.6416 USgal) No specific access platform 3.5 m (11 ft. 6 in.) No specific container 5 l (1.3208 USgal) 3862619-1 1 COVER - ASSEMBLY, APU GEN
R EFF : 001-049, 101-105, 107-107, 151-199, 49-20-00Page 301 201-210, Config-2 Aug 01/05
CES B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 03-008 USA MIL-L-6081 GRADE 1010 OR GRADE 1005
OIL (FUEL CONTROL PRESERVATION) (Ref. 20-31-00) Material No. 11-002 USA MIL-PRF-680
DRY CLEANING SOLVENT (VARSOL/WHITE SPIRIT)
(Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-23-51-000-001 Removal of the APU Generator 8XS
24-23-51-400-001 Installation of the APU Generator 8XS
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
28-22-00-710-001 Operational Test of the APU Fuel-Pump System on
Ground to Purge the Fuel Line
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
49-00-00-710-010 Operational Test of the APU (131-9(A))
49-11-11-000-004 Removal of the Power Plant (APU) (131-9(A))
49-32-11-000-003 Removal of the Fuel Control Unit (FCU) (8022KM)
(131-9(A))
49-32-11-400-003 Installation of the Fuel Control Unit (FCU) (8022KM)
(131-9(A))
49-32-13-000-001 Removal of Flow Divider and Solenoid Valve (8024KM)
(131-9(A))
49-32-13-400-001 Installation of Flow Divider and Solenoid Valve
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