C. Expendable Parts
-------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
3 packing 49-32-04 01A-030
6 packing 49-21-04 20 -400
11 packing 49-21-04 20 -380
13 packing 49-21-04 13A-120
15 packing 28-22-04 11 -260
D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001
24-42-00-862-001
28-00-00-910-001 28-22-00-710-001
28-22-14-400-001 29-00-00-864-001
29-14-00-614-002
49-00-00-710-004 52-41-00-010-001 52-41-00-410-001 49-32-11-991-001
3. Job Set-up
__________ Subtask 49-32-11-941-052
A. Safety Precautions
Energize the Ground Service Network from the External PowerDe-energize the Ground Service Network Supplied from the External PowerFuel Safety ProceduresOperational Test of the APU Fuel-Pump System on Ground to Purge the Fuel LineInstallation of the APU Fuel LP-Switch 5030QMPut the Related Hydraulic System in the Depressurized Configuration before Maintenance ActionPressurization of the Hydraulic Reservoirs through the Ground ConnectorOperational Test of the APU (4005KM) (GTCP 36-300)Open the APU Doors for AccessClose the APU Doors after AccessFig. 401
(1) Obey the Fuel Safety Precautions (Ref. TASK 28-00-00-910-001).
Subtask 49-32-11-860-058
B. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-42-00-861-001).
(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Make sure that there is 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 49-32-11-865-051
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-32-11-010-058
D. Get Access
(1)
Make sure that the access platform is in position below the APU compartment.
(2)
Make sure that the APU access doors 315AL and 316AR are open (Ref. TASK 52-41-00-010-001).
(3)
Make sure that the light SW 11LJ is set to the ON position.
4. Procedure
_________
(Ref. Fig. 401/TASK 49-32-11-991-001) Subtask 49-32-11-420-050
A. Installation of the FCU (8022KM)
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Remove the blanking plugs.
(4)
Lubricate the new packing (3). Use OILS (Material No. 03-002).
(5)
Install the packing (3) to the FCU (8022KM) (1).
(6)
Examine the adapter threads (16), (12), (10), and (7) for damage.
(7)
Examine the FCU and the oil-pump assembly mount-faces for damage.
(8)
Examine the FCU and the oil pump assembly splined shaft and sleeve for damage.
(9)
Lubricate the new packing (15) with FUELS (Material No. 01-002).
(10)
Install the packing (15) and the APU fuel LP switch 5030QM to the FCU (8022KM) (1) (Ref. TASK 28-22-14-400-001).
(11)
Lubricate the new packing (6) (6) with FUELS (Material No. 01-002).
(12)
Install the packing (6) and the adapter (7) to the FCU (8022KM) (1).
(13)
Lubricate the new packing (11) (11) with FUELS (Material No. 01-002).
(14)
Install the packing (11) and the adapter (10) to the FCU (8022KM) (1).
(15)
Lubricate the new packing (13) packing (13) with FUELS (Material No. 01-002).
(16)
Install the packing (13) and the air check valve (12) to the FCU (8022KM) (1).
(17)
Lubricate the FCU splined shaft with COMMON GREASE (Material No. 04-010).
(18)
Safety the adapters (16), (10), (7) and the pipe connector (5) with lockwire-corrosion resistant steel 0.8 mm (0.032 in) dia.
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