S 034-049
(2)
Use the G28020-2 wrench to disconnect the shroud fuel fitting and the fuel hose.
S 034-050
(3)
Get access to the forward side of the APU firewall through the access door, 315A.
S 034-081
(4)
Loosen the coupling nut which connects the shroud and the bellows.
S 034-051
(5)
Remove the straps and the anti-abrasion shield.
S 034-087
(6)
Compress the bellows and disconnect the fuel hose union.
NOTE: The bellows assembly must not be removed from the firewall
____
unless it is necessary.
S 494-085
(7) Connect the new fuel hose, or a length of cord, to the fuel hose being removed.
NOTE: This will make the installation of the new hose in the shroud
____
easier.
S 024-053
(8) Remove the fuel hose.
TASK 28-25-04-404-054
5. APU Fuel Supply Line from the Rear Spar to the APU Firewall Installation
________________________________________________________________________ (Fig. 401)
A. References
(1) AIPC 28-25-04, Fig. 1
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(2)
AIPC 28-25-04, Fig. 5
(3)
AMM 25-52-01/401, Containerized Cargo Compartment Ceiling and Sidewall Linings
(4)
AMM 28-00-00/201, Fuel
(5)
AMM 28-25-00/201, APU Fuel Feed System
(6)
AMM 28-25-00/601, APU Fuel Feed System
B.
Equipment
(1)
G28020-2, Wrench, APU fuel shroud
C.
Consumable Materials
(1)
D00128 Petrolatum - Technical, VV-P-236
D.
Access
(1)
Location Zones
136 Wing Landing Gear Well, Right
142 Aft Cargo Container Compartment, Right
146 Bulk Cargo Compartment, Right
152 Area Aft of Bulk Cargo Compartment, Right
312 Area Aft of Pressure Bulkhead, Right
314 Stabilizer Torsion Box Compartment, Right
316 Area Aft of Stabilizer Box Compartment, Right
(2)
Access Panels
146AZ Sta. 2160 Bulkhead Access Door
312A Horizontal Stabilizer Jackscrew Access Door
315A APU Battery Access Door
E.
Procedure
S 424-055
(1) Connect the fuel hose union at the APU firewall first, and then connect the remaining fuel hose connections (AMM 28-00-00/201).
NOTE: All of the shroud coupling components must be in position for
____ installation before you make the fuel hose connections.
S 864-056
(2)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6 Main Power Distribution Panel
1) 6H18, DC FUEL PUMP APU
2) 6G5, FUEL SHUTOFF VALVE APU
(b)
P83 Panel
1) APU START
(c)
P414 Main Power Distribution Panel
1) 414R18, MAIN TANK BOOST PUMP 2 AFT
(3)
Purge the APU fuel-feed system (AMM 28-25-00/201).
(4)
Do the APU fuel line leak check (AMM 28-25-00/601).
S 614-057
S 794-058
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MAINTENANCE MANUAL
