Subtask 49-52-51-865-053
 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 49-52-51-010-053
 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).

 (3)
 Set the LIGHT control SW 11LJ to the ON position.

R  EFF : 001-049, 101-105, 107-107, 151-199, 49-52-51Page 402 201-210, Config-2 Aug 01/05
 CES  4. Procedure

_________
 (Ref. Fig. 401/TASK 49-52-51-991-002) Subtask 49-52-51-020-051
 A. Removal of the Cooling Fan
 (1)
 Remove the clamps (7) and the fan inlet duct (8).

 (2)
 Remove the clamp (6) from the fan outlet duct.

 (3)
 Hold the fan (4) and remove the clamp (2) from the connecting flange and the fan (4).

 (4)
 Remove the transfer tube (3).

 (5)
 Remove and discard the packing (5) from the fan (4).

R  EFF : 001-049, 101-105, 107-107, 151-199, 49-52-51Page 403 201-210, Config-2 Aug 01/05
 CES

 Cooling Fan
 Figure 401/TASK 49-52-51-991-002

 CES

 TASK 49-52-51-400-002
 Installation of the Cooling Fan (8053KM) (131-9(A))

 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  Torque Wrench : range 0.00 to 1.20 m.daN
 (0.00 to 9.00 lbf.ft)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 03-002  GB DEF-STAN 91-101 LUBRICATING OIL TURBINE ENGINE SYNT BASE (Ref. 20-31-00)
 C. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
packing  49-52-09 01 -070

R  EFF : 001-049, 101-105, 107-107, 151-199, 49-52-51Page 405 201-210, Config-2 Aug 01/05
 CES

 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 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)) 49-90-00-600-007 Check and Replenish Oil Level (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 49-52-51-991-002 Fig. 401
 3. Job Set-up
__________
 Subtask 49-52-51-860-053
 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)
 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).

 (5)
 Make sure that the access platform is in position below the APU compartment.

 (6)
 Make sure that the APU access doors are open (Ref. TASK 52-41-00-010-001).

 (7)
 Make sure that the LIGHT control SW 11LJ is in the ON position.

R  EFF : 001-049, 101-105, 107-107, 151-199, 49-52-51Page 406 201-210, Config-2 Aug 01/05
 CES  Subtask 49-52-51-865-054

 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
　
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