(13)
Open the APU access door 315AL.
(14)
Connect the bonding strap (15) to the structure with the bolt (13), the washers (14) and (11) and the nut (12) (Ref. TASK 20-28-00-912-004).
Subtask 49-52-41-865-055
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 49-52-41-790-051
D. Test
(1)
Start and operate the APU (Ref. TASK 49-00-00-860-005) .
(2)
While the APU is running, do a leak test of the oil-cooler outlet-duct assembly. No oil leaks are permitted.
(3)
Stop the APU (Ref. TASK 49-00-00-860-006) .
5. Close-up
________ Subtask 49-52-41-410-053
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Set the LIGHT control switch 11LJ to the off position.
(3)
Close the APU access door 315AL (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s).
(5)
Remove the warning notice(s). Subtask 49-52-41-860-052
B.
Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
FAN - COOLING - REMOVAL/INSTALLATION
____________________________________
R **ON A/C 001-003, 051-099, 401-499,
TASK 49-52-51-000-001 Removal of the Fan Assembly (8053KM) (GTCP 36-300) 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
__________________
Self Explanatory
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 warning notice
No specific access platform 2.5 m (8 ft. 2 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 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
49-52-51-991-001 Fig. 401
3. Job Set-up
__________ Subtask 49-52-51-860-050
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 49-52-51-865-050
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 49-52-51-010-050
C. Get Access
(1)
Put the access platform below the APU access doors 315AL and 316AR.
(2)
Open the APU access doors 315AL and 316AR (Ref. TASK 52-41-00-010-001).
4. Procedure
_________ (Ref. Fig. 401/TASK 49-52-51-991-001) Subtask 49-52-51-020-050
A. Removal of the Fan Assembly (8053KM)
(1)
Remove screw (15), washer (16) and tube (18).
(2)
Remove and discard packing (17).
(3)
Remove the clamp (10) from the cooling fan assembly (8053KM) (11).
(4)
Remove the cooling fan assembly (8053KM) (11) from the APU.
Fan Assembly
Figure 401/TASK 49-52-51-991-001
CES
TASK 49-52-51-400-001 Installation of the Fan Assembly (8053KM) (GTCP 36-300) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
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