(15)
 Put SUPPORT FRAME - APU the (with the APU temporarily installed on it) in the correct position below the APU compartment.

 (16)
 Make sure that the HOIST - MINILIFT is installed correctly (Ref. TASK

 49-00-00-480-002).

 (17)
 Remove the blanking covers from APU exhaust and hot nozzle assy flange.

 (18)
 Make sure that the hot nozzel assy flange is in the temporary position to which it was moved during APU removal.

 NOTE : There must be sufficient clearance between the hot nozzle assy
____ and exhaust flange to prevent damage to the APU during installation.
 Subtask 49-11-11-420-050
 C. Installation of the APU
 (1) Removal of the APU from the SUPPORT FRAME - APU.
 WARNING : OBEY THE HOISTING SAFETY PROCEDURES.

_______ MAKE SURE THAT THE HOIST IS ASSEMBLED AND ATTACHED CORRECTLY BEFORE YOU PUT A LOAD ON IT. OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THE HOIST. IF THE HOIST IS IN AN INCORRECT CONDITION THE LOAD CAN MOVE ACCIDENTALLY AND KILL PERSONS OR CAUSE INJURY.
 CAUTION : MAKE SURE THAT ALL PLUMBING IS FREE FROM OBSTRUCTION.
_______
 (a)
 Connect the HOIST - MINILIFT to the APU (Ref. TASK 49-00-00-480-002).

 (b)
 Operate the HOIST - MINILIFT carefully until the APU weight is removed from the SUPPORT FRAME - APU, then disconnect the APU from the SUPPORT FRAME - APU.

 NOTE : Turn the upper drum shaft of the HOIST - MINILIFT until
____ you have removed the slack from the hoist cable, then disconnect the APU from the SUPPORT FRAME - APU. Make sure that you do not lift the SUPPORT FRAME - APU.
 NOTE : Do a check and make sure that the HOIST - MINILIFT is
____ assembled and installed correctly.

 (2) Installation of the APU on the APU mount vibration-isolators. (Ref. Fig. 404/TASK 49-11-11-991-003)
 CAUTION : BE CAREFUL WHEN YOU ENGAGE THE TWO FORWARD MOUNT BRACKETS
_______ ON THE VIBRATION ISOLATORS. THE MACHINED FACES ON THE CONE BOLTS OF THE VIBRATION ISOLATORS MUST BE ALIGNED WITH THE SLOTS ON THE MOUNT BRACKETS. IF NOT YOU WILL CAUSE DAMAGE TO THE MATING FACES.
 CAUTION : DO NOT TURN THE HOIST HANDLE MORE THAN 90 DEGREES WHEN THE
_______ APU MOUNT BRACKETS ARE TIGHTLY ENGAGED ON THE VIBRATION ISOLATORS. IF YOU TURN THE HOIST HANDLE MORE THAN 90 DEGREES, YOU CAN CAUSE DAMAGE TO THE APU AND THE APU MOUNTS.
 CAUTION : DO NOT RELEASE THE LOAD FROM THE HOIST UNTIL THE MOUNT NUTS
_______ ARE TORQUED. IF THE MOUNT NUTS HOLD THE LOAD BEFORE THEY ARE TORQUED, YOU CANNOT APPLY THE CORRECT TORQUE VALUE.
 CAUTION : MAKE SURE THAT ALL PLUMBING IS FREE FROM OBSTRUCTION.
_______
 (a)
 Operate the HOIST - MINILIFT and carefully lift the APU into the correct position in the APU compartment.

 (b)
 Carefully engage the APU mount brackets (46) on the APU vibration isolators.

 (c)
 Remove the PROTECTOR - THREADS, APU MOUNTING BOLTS from the threads (44) of the rear APU mount and the vibration isolators.

 (d)
 Installation of the nuts (45), (47) and (48).

 1_ Install and turn the nuts (45), (47) and (48) a few turns on
 the threads (44) of the vibration isolators and aft mount
 bracket.
 2_ Use a torque wrench to turn the nuts and measure the breakaway
 torques of the nuts (45), (47) and (48).
 NOTE : If the breakaway torque of the LH (45) or RH FWD nut____
 (47) is less than to 0.1 m.daN (8.84 lbf.in), replace
 the nut.
 If the breakaway torque of the AFT nut (48) is less
 than to 0.2 m.daN (17.69 lbf.in), replace the nut.
 3_ Turn the nuts (45), (47) and (48) until they are in contact
 with the APU mount brackets or vibration isolator.

 4 TORQUE the LH (45) and the RH (47) nuts to between 2.5 and 3.1
_ m.daN (18.43 and 22.86 lbf.ft)
 5 TORQUE the aft nut (48) to between 7.7 and 8.5 m.daN (56.78
_
 and 62.68 lbf.ft)

 6 Mark the nuts with PAINTS FOR DETAIL (INTERNAL AND EXTERN AL)
_ (Material No. 07-020) to identify the torqued position.
 (e) Do a detailed visual inspection of the APU suspension rods, shockmounts structure incl. brackets and visible part of attachment fittings (airframe side) (Ref. TASK 49-12-00-210-001).

R **ON A/C 062-099, 401-499,
 Subtask 49-11-11-560-053-A
 A. Preparation of a Replacement Component
 (1) Make sure that the APU is installed on a SUPPORT FRAME - APU.
 (a)
 Make sure that the generator is installed correctly (Ref. TASK 24-23-51-400-001).

 (b)
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320飛機維護手冊 AMM 機載輔助動力 AIRBORNE AUXILIARY POWER2(30)