(a)
Put the APU on the APU cradle (Fig. 402).
(b)
Connect the rear part of the cradle to the lower holes of the two APU ground handling lugs (Fig. 401).
(c)
Put in the two quick-release pins to attach the front yoke to the cradle (Fig. 401).
(d)
Disconnect the two fishpole hoist cables or chains from the front yoke.
(e)
Disconnect the rear mount sling from the two ground handling lugs.
S 024-100
(3)
If the new or serviceable APU does not have the two APU generators installed, do these tasks for the removed APU: APU-Driven Generator Removal (AMM 24-21-03/401) and APU-Driven Generator Quick Attach-Detach (QAD) Ring Removal (AMM 24-21-02/401).
S 024-101
(4)
If the new or serviceable APU does not have the cone bolt support block installed, do this task for the removed APU: Cone Bolt Support Block Removal (AMM 49-13-06/401).
S 024-103
(5)
If the new or serviceable APU does not have the aft mount link installed, do this task for the removed APU: Aft Mount Link Removal (AMM 49-13-07/401).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
(6) S 024-102Remove the APU (1) from the area.
NOTE:____ The APU sling assembly can be used as an alternative to remove the APU from the area.
(7) S 944-104Make sure you install all necessary protection covers.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
TASK 49-11-01-404-030
3. Auxiliary Power Unit Installation (Fig. 401, Fig. 402, Fig. 403, Fig. 404,_________________________________ Fig. 405)
A. References
(1)
AMM 12-13-02/301, Auxiliary Power Unit
(2)
AMM 12-13-05/301, APU Starter Motor
(3)
AMM 20-11-15/401, Bonding Jumpers and Ground Leads
(4)
AMM 20-22-01/601, Electrical Bonding
(5)
AMM 24-21-02/401, APU-Driven Generator Quick Attach-Detach (QAD) Ring
(6)
AMM 24-21-03/401, APU-Driven Generator
(7)
AMM 31-61-00/201, Integrated Display System
(8)
AMM 49-11-00/201, Auxiliary Power Unit
(9)
AMM 49-13-06/401, Cone Bolt Support Block
(10)
AMM 49-13-07/401, Aft Mount Link
(11)
AMM 49-15-02/401, Air Inlet Duct Seal
(12)
AMM 49-16-00/601, APU Drains and Vents
B.
Equipment
(1)
G49002-85 Cradle - APU (Includes Hydraulic Jack Assembly)
(2)
PF51-002-1 Hoist - Fishpole, Manual Powered (Quantity of 3) 06714 P. F. Industries Inc. 151 S. Michigan St., Seattle, WA 98108-3225 or
(3)
AP6108 Hoist - Fishpole, Advanced Chain-Driven (Quantity of 3) Morgan Aero Products 2719 Pacific Avenue, Everett, WA 98201
(4)
Mallet - Rubber (commercially available)
(5)
G49005-42 Sling Assembly - APU (Optional)
(6)
2OHME65B00780-1 Sling - APU Rear Mount (Fishpole Hoist Method)
(7)
2OHME65B00784-1 Support - APU Exhaust Pipe
(8)
G49007-5 Thread Protector - APU Retention Bolts (Quantity of 3) or
(9)
PRE65B00780-1 Thread Protector - APU Cone Bolt (Quantity of 3)
C. Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 403 | 1 | Auxiliary Power Unit Assembly | 49-11-01 | 01 | 50 | | | | (Auxiliary Power Unit) | or | | | | | | | 49-11-01 | 01A | 85 or | | | | | | | 525 | | 404 | 3 | Seal | 36-11-51 | 02 | 35 | 2.......….......…...................................…...........…......….......1
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