fuel valve. 3) Remove the electrical harness with the cap chain from the airplane structure. 4) Remove the cap from the electrical connector D920 for the APU fuel valve.
(c)
Connect the electrical connector D920 to the APU fuel valve.
S 432-208
(8)
Install the APU power plant (AMM 49-11-00/401).
S 862-209
(9)
Remove the collars and close these circuit breakers:
(a)
E3-3 Electrical Shelf, APU Control Unit
(b)
P6-5 Load Control Center Assembly
1) APU CONT
S 862-210
(10)
Remove the INOPERATIVE - APU REMOVED tag from the APU master switch on the P5 forward overhead panel.
S 732-218
(11)
Do a test of the fire detection system for the APU
(AMM 26-15-00/501).
TASK 49-11-00-602-220
12. APU Preservation (Less Than 180 Days)
________________
A. General
(1) This procedure gives the instructions for the preservation of the APU. To do the APU preservation task you must operate the APU. There are no special instruction for the preservation of the APU if it is not in service for 180 days or less.
B. Access
(1)
Location Zones
101 Control Cabin, LH
102 Control Cabin, RH
701 Tail Compartment
703 APU Compartment
704 Tail Cone
(2)
Access Panels
3708 APU Air Intake
3803 APU Exhaust Duct
3804 APU Cowl Door
C. Procedure
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49-11-00
ALL ú ú 03 Page 244 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 862-237
CAUTION: DO NOT USE COMPOUNDS THAT PREVENT CORROSION IN THE COMPRESSOR
_______ SECTION. DO NOT CLEAN THE COMPRESSOR OR COMPRESSOR INLET WITH CHEMICALS THAT CAN CAUSE CORROSION. COMPOUNDS THAT PREVENT CORROSION AND CORROSIVE CHEMICALS CAN CAUSE DAMAGE TO THE APU.
(1) Operate the APU:
(a)
Do the steps as specified in the APU Start and Operation.
(b)
Permit the APU to operate with no load for a minimum of 5 minutes.
(c)
Do the steps as specified in the APU Usual Shutdown.
S 612-223
(2)
Make sure the oil level in the oil tank is correct.
S 622-222
(3)
Make sure the APU has protection from water and unwanted materials:
(a)
Install plugs, caps, and covers on all ports and openings for the APU.
(b)
Install a cover for the exhaust duct muffler.
(c)
Make sure the air inlet door is fully closed.
S 932-139
(4) Attach a preservation tag, that has the date of preservation on it, to the APU master switch.
TASK 49-11-00-602-225
13. APU Preservation (181 to 365 Days)
________________
A. General
(1)
This task gives the instructions for the preservation of the APU. To do the preservation task, you must flush the fuel solenoid valve and drain the oil tank.
(2)
If the APU is not in service after 365 days, it must be removed from the airplane.
B. Equipment
(1)
Container - for fuel, 5 U.S. Gallon (18.9 L) capacity
(2)
Container - for oil, 5 U.S. Gallon (18.9 L) capacity
C. Consumable Materials
(1)
D00096 Oil - Flushing, MIL-PRF-6081, Grade 1005 or
(2)
D00124 Oil - Flushing, MIL-PRF-6081, Grade 1010
D. Access
(1) Location Zones
101 Control Cabin, LH
102 Control Cabin, RH
701 Tail Compartment
703 APU Compartment
704 Tail Cone
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