(12)
 Install the cooling fan assembly (8053KM) (11) on the APU. Make sure that the fan assembly drive is fully engaged.

 (13)
 Install the clamp (10) over the flange of the cooling fan assembly mount on the APU.

 (14)
 TORQUE the bolt on clamp (10) to 0.56 m.daN (49.55 lbf.in)

 (15)
 Apply a thin layer of OILS (Material No.03-002) to the new packing (17).

 (16)
 Install the new packing (17) on the tube (18).

 (17)
 Install tube (18) on cooling fan assembly (8053KM) (11) with screw

 (15) and washer (16).

 (18)
 Install the fan inlet duct (3).

 (19)
 Install the clamps (1) and (2) on the fan inlet duct (3).

 (20)
 Install the fan discharge duct (7).

 (21)
 Install the nuts (4), the bolts (5) and the washers (6) to the fan discharge duct (7).

 (22)
 TORQUE the nuts (4) to between 0.45 and 0.56 m.daN (39.82 and 49.55 lbf.in).

 (23)
 Install the clamp (8) to the oil cooler duct (9).

 Subtask 49-52-51-210-050
 B. Do a visual check of the oil quantity in the APU. Add oil if the oil level is on or less than the ADD mark on the sight glass. (Ref. TASK 49-90-00-600-001)
 Subtask 49-52-51-865-052
 C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD
 Subtask 49-52-51-710-050
 D. Do the operational test of the APU and do a leak test.
 (1)
 Do the operational test of the APU (Ref. TASK 49-00-00-710-004).

 (2)
 During the operational test of the APU do a leak test of the accessory cooling system and make sure that the system operates correctly.

 NOTE : No leaks are permitted.
____
 ________

5. Close-up
 Subtask 49-52-51-410-050
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Set the LIGHT SW 11LJ to the OFF position.

 (3)
 Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).

 (4)
 Remove the access platform(s).

 Subtask 49-52-51-860-055
 B. Aircraft Maintenance Configuration
 (1)
 De-energize the ground service network
 (Ref. TASK 24-42-00-862-001).

 (2)
 Pressurize the reservoirs of the hydraulic systems. (Ref. TASK 29-14-00-614-002).

 (3)
 Remove the warning notice(s).

 FAN - COOLING - REMOVAL/INSTALLATION
____________________________________
 TASK 49-52-51-000-002
 Removal of the Cooling Fan (8053KM) (131-9(A))
 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 packing
 No specific warning notice
 No specific access platform 3.5 m (11 ft. 6 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 49-52-51-991-002 Fig. 401

R  EFF : 001-049, 101-105, 107-107, 151-199, 49-52-51Page 401 201-210, Config-2 Aug 01/05
 CES  3. Job Set-up

__________ Subtask 49-52-51-860-052
 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).
　
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