4. WIPER
1. WIPER UNLATCH ARM
MECHANISM TRIP STUD 1
SEE B
5. PRESSURE
PLATE
3. SERRATED
SLEEVE
2. SERRATED
SEE A 14. GASKET WASHER
6. SCREWS
7. HOLDDOWN
SCREW8. WASHER
13. MOTOR 9. CLAMPING
CONVERTER 10. HUB SCREW
11. MOUNTING BOLT (20 LOCATIONS)
1. STUD
12. ELECTRICAL CONNECTOR
A
1A5
SCALE 1:1MAKE SURE THAT THE LEVER ENGAGES |0.06 INCH MAXIMUM
B
THE STUD BY 0.20
PERMITTED MOVEMENT
INCH OR MORE
4. WIPER ARM
LEVER
1. STUD
1 THE TRIP STUD MUST BE REINSTALLED IN THE EXACT LOCATION SHOWN AFTER REPLACEMENT OF THE MOTOR/CONVERTER
UNLATCH MECHANISM
Motor-Converter Installation Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 144-002
(2) Use a sealant cutting tool to remove the sealant from the heads of these screws (Fig. 401):
(a)
The two screws (6) which hold the wiper arm (4) to the hub (10)
(b)
Clamping screw (9)
(c)
Holddown screw (7).
S 034-019
(3) Remove the two screws (6) and the pressure plate (5), and remove the wiper arm (4) from the hub (10).
NOTE: You can use the hub as a handle during removal and
____ installation of the motor-converter.
S 934-004
(4)
Make a mark of the location of the trip stud (1).
S 024-005
(5)
Remove the motor-converter:
(a)
Remove the mounting bolts (11).
(b)
Hold the hub, and lift the motor-converter (M18 - (left), (M17 - right) (13) to remove it from the airplane.
NOTE: It is possible that you will need to hold the
____ motor-converter at an angle to remove it.
(c)
Disconnect the electrical connector DM18 (left) or DM17 (right) (12).
(d)
Loosen the clamping screw (9).
(e)
Remove the holddown screw (7) and the washer (8).
(f)
Remove the wiper arm hub (10), serrated washer (2), and serrated sleeve (3) from the motor-converter (13) shaft.
TASK 30-42-03-404-020
3. Motor-Converter Installation (Fig. 401)
____________________________
A. Standard Tools and Equipment
(1)
Sealant cutting tool - hardwood or plexiglass
(2)
Sealing gun - 6-inch length cartridge, Semco Research or equivalent
(3)
Spatula
B. Consumable Materials
(1)
G00371, Brush - Soft Bristle
(2)
B00083, Cleaner - Aliphatic Naphtha, TT-N-95
(3)
G00507, Cloth - Lint-Free
(4)
A00311, Rubber Cement - BF Goodrich No. 4 or equivalent
(5)
A00247, Sealant - BMS 5-95, Class B
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MAINTENANCE MANUAL
C. Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Stud (Wiper Unlatch Mechanism | 30-42-01 | 01 | 45 | | | | Trip Stud) | | | | | | 5 | Wiper Arm Assembly - left | | | 35 | | | 5 | Wiper Arm Assembly - right | | | 40 | | | 11 | Bolt (Mounting Screw) | | | 50 | | | 13 | Converter Assy - Motor | | | 55 | | | 14 | Gasket | | | 60 | 2......…........…...................................…...........….....…........1
D. References
(1)
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
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