APU Mounts and Tie Rods Figure 404A/TASK 49-11-11-991-003-A
R EFF : 062-099, 401-499, 49-11-11Page 419 Config-1 Aug 01/05
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(b)
Disconnect the bonding straps (43) from the LH and RH FWD tie-rods.
(c)
Temporarily install the nuts (45), the washers (44) to the stud
(40) on the LH and RH FWD mount brackets (46).
(d)
To prevent damage when the APU is removed attach the bonding straps (43) with tape to the APU tie-rods.
R **ON A/C 001-003, 051-099, 401-499,
Subtask 49-11-11-480-052
B. Installation of the the APU HOIST - MINILIFT.
(1)
Install the HOIST - MINILIFT (Ref. TASK 49-00-00-480-002).
(2)
Remove the weight of the APU from the APU mount brackets CAUTION : DO NOT TURN THE HOIST HANDLE MORE THAN 90 DEGREES, AFTER
_______ YOU REMOVE THE SLACK FROM THE HOIST CABLE. IF YOU TURN THE HOIST HANDLE MORE THAN 90 DEGREES, YOU CAN CAUSE DAMAGE TO THE APU AND THE APU MOUNTS.
(a) Operate the HOIST - MINILIFT until the weight of the APU is removed from the mounts.
NOTE : Before you install the hoist handle, turn the upper drum
____ shaft of the HOIST - MINILIFT with your hand until you have removed the slack from the hoist cable. Then install the hoist handle on the upper drum shaft and turn the handle 90 degrees in clockwise direction. Thus you make sure that the weight of the APU is removed from the APU mounts.
NOTE : Do a check and make sure that the HOIST - MINILIFT is
____ assembled and installed correctly and holds the load.
(3) Put the SUPPORT FRAME - APU in position below the APU.
**ON A/C 001-003, 051-061,
Subtask 49-11-11-020-050
C. Remove the APU from the APU Compartment
(1) Removal of the mount nuts
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.
(a)
Remove the APU mount nuts (45), (47) and (48).
(b)
Install the PROTECTOR - THREADS, APU MOUNTING BOLTS to the threads (44) of the rear APU mount and the vibration isolators.
(2) Removal of the APU from the APU mount vibration-isolators CAUTION : MAKE SURE THAT THE THREE ATTACHMENT NUTS ARE REMOVED AND
_______ THAT THE APU CAN MOVE DOWN FREELY. IF YOU DO NOT DO THIS, YOU CAN CAUSE DAMAGE TO THE TIE RODS WHEN YOU LOWER THE APU.
CAUTION : MAKE SURE THAT ALL PLUMBING IS FREE FROM OBSTRUCTION.
_______
(a) Remove the APU from the APU mount vibration-isolators and lower it carefully from the APU compartment.
(3) Attachment of the APU to the SUPPORT FRAME - APU. CAUTION : MAKE SURE THAT ALL PLUMBING IS FREE FROM OBSTRUCTION.
_______
(a)
Attach the APU to the APU SUPPORT FRAME - APU NOTE : Make sure that the pip-pins are fully engaged in the
____ brackets of the APU support frame and the APU. Make sure that the screw at the rear of the APU support frame is fully engaged in the attachment plate and the APU.
(b)
Disconnect the HOIST - MINILIFT from the APU (Ref. TASK 49-00-00-080-002).
(c)
Put a blanking cover on the APU exhaust flange. NOTE : If you will not install the APU, you must install the
____ components of the kit for the FLIGHT WITHOUT APU.
(4) Disconnection of Replacement Components
(a)
Remove the Generator (80) (Ref. TASK 24-23-51-000-001).
(b)
Remove the FWD and AFT APU mount brackets (46) (Ref. TASK 49-12-54-000-001).
(c)
Remove the APU LP Switch 5030QM (Ref. TASK 28-22-14-000-001).
(d)
Remove the Compartment Cooling Duct (Ref. TASK 49-52-52-000-001). NOTE : Keep these parts into a container for replacement at the
____
new component.
R **ON A/C 062-099, 401-499,
Subtask 49-11-11-020-050-A
C. Remove the APU from the APU Compartment
(1) Removal of the mount nuts
WARNING : OBEY THE HOISTING SAFETY PROCEDURES.
