(a)
 Remove the blanking covers from the oil cooler outlet and oil cooler duct.

 (b)
 Install the oil cooler outlet-duct (Ref. TASK 49-52-41-400-002).

 (9)
 Connection of the Bleed-Air Duct Elbow (Ref. Fig. 401/TASK 49-11-11-991-006)

 (a)
 Remove the blanking covers from the openings of the bleed-air duct elbow (3), and the bleed air duct of the APU (1).

 (b)
 Clean the component interface and/or the adjacent area.

 (c)
 Do an inspection of the component interface and/or the adjacent area.

 (d)
 Make sure that mounting flanges of the bleed-air duct elbow (3) is positioned, without forces in the X, Y and Z direction, 0 +2 -2 mm (0.0000 +0.0787 -0.0787 in.) to the APU interface.

 NOTE : If necessary adjust the position with the rods.
____

 (e)
 Put the clamp (2) over the mounting flanges of the bleed-air duct elbow (3) and APU bleed-air duct (1).

 (f)
 TORQUE the clamp (2) to between 0.4 and 0.5 m.daN (35.39 and

 44.24 lbf.in). Subtask 49-11-11-865-067
 F. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD, 1QC, 2QC, 3QC, 1QF, 2QF, 1WF, 2WF, 3WF, 4WF, 30WF, 1WG.
 Subtask 49-11-11-740-053-A
 G. BITE test and update of the ECB
 (1)
 Do the self test of the ECB (Ref. TASK 49-00-00-710-005).

 (2)
 Update the APU hours and cycles in the ECB. NOTE : This workstep is only necessary if the TSO of installed APU is

____
 > 0 and operator wants to monitor TSO.

 (a) Use the MCDU to do the update of the APU hours and cycles (Ref. TASK 49-00-00-860-011).
 (3) Bleeding of the APU Fuel Line
 (a)
 Bleed the APU fuel line (Ref. TASK 28-22-00-710-001). Subtask 49-11-11-410-066

 H.
 Installation and locking of the APU access doors

 (1)
 If removed install the APU access doors 315AL, 316AR (Ref. TASK 52-41-21-400-001) and (Ref. TASK 52-41-22-400-001).

 (2)
 Make sure that the access doors 315AL, 316AR are open and locked (Ref. TASK 52-41-00-010-001) to facilitate leak checks during the functional ground test.

 Subtask 49-11-11-710-055
 J. Operational Test
 CAUTION : DO NOT START THE APU WITH ACCESS DOORS 315AL AND 316AR
_______ OPEN/REMOVED. THE APU FIRE EXTINGUISHER SYSTEM IS NOT SUFFICIENT TO EXTINGUISH A FIRE IF THE ACCESS DOORS 315AL AND 316AR ARE OPEN/REMOVED.
 CAUTION : OBEY THE SAFETY PRECAUTIONS.
_______
 CAUTION : MAKE SURE THAT THE FUEL-FEED SYSTEM DOES NOT HAVE ANY LEAKS.
_______
 LEAKS IN THE FUEL-FEED SYSTEM CAN CAUSE A FIRE.

 CAUTION : MAKE SURE THAT THE APU OIL RESERVOIR IS FILLED BEFORE YOU START
_______ THE APU. IF YOU OPERATE THE APU WITHOUT OIL, DAMAGE WILL OCCUR.
 (1) Do the Operational test of the APU (Ref. TASK 49-00-00-710-008), (Ref. TASK 49-00-00-790-005).
 NOTE : Do the ground air-preconditioning with the APU for a minimum
____ of 10 minutes during the first run of an APU after its installation. If you smell fumes in the cockpit and/or passenger compartment, remove the contamination from the air conditioning system (Ref. TASK 21-00-00-615-001), (Ref. TASK 21-00-00-615-002) and (Ref. TASK 21-00-00-100-001).
 Subtask 49-11-11-865-069
 K. 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 49-11-11-210-063
 L. Inspection of the APU after shutdown
 WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT
_______
 BURNS WHEN YOU DO THE MAINTENANCE TASK(S).

 (1) Carefully examine the APU, the vent and drain valve connections and the drain lines for fuel and/or oil leakage (Ref. TASK 49-00-00-790-002).
 NOTE : Leaks are not permitted.
____
 (2)
 Do a check of the magnetic drain plug for unwanted metal (Ref. TASK 49-91-42-200-003).

 (3)
 Do a check of the APU oil level on the oil sight glass. If necessary add oil until the oil level reaches the full mark. (Ref. TASK 49-90-00-600-004).

 5. Close-up
________
 Subtask 49-11-11-410-061
 A. Close Access
 (1)
 If removed install the APU access doors 315AL, 316AR (Ref. TASK 52-41-21-400-001) and (Ref. TASK 52-41-22-400-001).
　
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