OPTIONAL INSTALLATION:
C
1) SELF-LOCKING NUT, P/N NAS1726-6D
2) TERMINAL NUT AND WASHER
APU Generator Installation
Figure 401
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
24-21-01
ALL ú ú 01 Page 402 ú May 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 864-005
(3) Open this circuit breaker on the E6 rack in the aft equipment center, and attach a DO-NOT-CLOSE tag.
(a) APU PRIME CONT
S 014-006
(4) Open the APU access doors, and lock in the open position with the door rods.
F. Remove the APU Generator
S 864-007
(1) Remove the electrical connection as follows:
(a)
Remove the wire harness from the generator electrical connector.
(b)
Install a cap on the electrical connector.
(c)
Remove the terminal block cover (6) from the generator.
(d)
Remove the spiralock nuts (7), the self-locking nuts, or the terminal nuts and washers which are installed on the terminal studs.
(e)
Remove the four phase leads.
(f)
Install the spiralock nuts (7), the self-locking nuts, or the washers and terminal nuts on the terminal studs (tighten by hand).
(g)
Install the terminal block cover (6) with the washers (5) and the screws (3).
S 024-008
(2) Remove the generator as follows:
(a)
Use the eyebolt and the fishpole hoist, to hold the generator and keep the weight off the input shaft.
(b)
Loosen the nuts (1) which attach the generator to the seal plate. Make a minimum of 7 full turns of each nut, but do not remove the nuts (1) from the studs.
(c)
Put the container below the APU generator.
WARNING:_______BE CAREFUL WHEN YOU REMOVE THE GENERATOR. THE HOT OIL FROM THE GENERATOR CAN CAUSE INJURY TO PERSONS.
CAUTION: DO NOT ALLOW THE GENERATOR TO HANG ON TO THE INPUT SHAFT
_______ DURING REMOVAL. FAILURE TO HOLD THE GENERATOR PROPERLY, CAN DAMAGE THE SHAFT.
(d)
Pull the generator from the seal plate.
(e)
Turn the generator 7 degrees clockwise to align the stud nuts on the seal plate with the holes in the generator.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
24-21-01
ALL ú ú 02 Page 403 ú May 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
CAUTION: PULL THE INPUT SHAFT IN A STRAIGHT LINE WHEN YOU REMOVE
_______ THE GENERATOR. AXIAL MOVEMENT OF THE INPUT SHAFT CAN CAUSE DAMAGE TO THE INPUT SHAFT SEAL.
(f)
Pull the generator from the studs on the APU.
(g)
Remove the generator.
S 034-009
(3)
Remove and examine the generator scavenge filter (AMM 49-27-03/201).
S 034-010
(4)
Install the generator shipping cover.
S 214-011
(5)
Examine the APU seal plate for mechanical damage.
S 644-031
(6)
Apply lubricant MIL-L-23699 or MIL-L-7808 to the seal on the near side of the plate (AMM 49-27-06/201).
TASK 24-21-01-424-002
3. Install the APU Generator (Fig. 401)
_________________________
A. Equipment
(1)
Fishpole hoist. (Commercial source)
(2)
Eyebolt - A49002-1
B. Consumable Materials
(1)
Lubricant - MIL-L-23699 or MIL-L-7808
(2)
Lubricant - Aeroshell Grease 16
C. Parts
(1) Refer to the AIPC for part numbers and effectivities of items in the table that follows:
~.............................................................................. | AMM | | AIPC | ................................................................................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 8 | Packing | 24-22-03 | 01 | 43 | 2.......….......…...................................…...........…......….......1
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：757 AMM 飞机维护手册 电源 ELECTRICAL POWER 1(55)
