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757 MAINTENANCE MANUAL
WINDSHIELD WIPER ARM/BLADE - REMOVAL/INSTALLATION
_________________________________________________
1. General_______
A. This procedure contains four tasks. The first task is the removal of the windshield wiper blade. The second task is the installation of the windshield wiper blade. The third task is the removal of the windshield wiper arm. The fourth task is the installation of the windshield wiper arm.
TASK 30-42-03-004-001
2. Removal of the Windshield Wiper Blade_____________________________________
A. Equipment
(1) Pad - To prevent windshield scratches caused by
the wiper arm
B. References
(1)
AMM 24-22-00/201, Electrical Power - Control
(2)
AMM 30-42-00/501, Windshield Wiper System
C. Access
(1) Location Zones
211/212 Control Cabin - Section 41
D. Prepare for Removal
S 864-059
(1)
Supply electrical power to the main AC buses (AMM 24-22-00/201).
S 864-060
(2)
Put the WIPER switch in the OFF position to put the motor/converter unit in the park position.
S 864-062
(3)
Open these circuit breakers on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11R13, WSHLD WIPER LEFT
(b)
11R22, WSHLD WIPER RIGHT
S 864-070
WARNING: BEFORE YOU DO MAINTENANCE ON THE WINDSHIELD WIPER SYSTEM, OPEN
_______ THE WINDOW HEAT CIRCUIT BREAKERS. IF THE CIRCUIT BREAKERS ARE NOT OPEN, PERSONS CAN GET AN ELECTRICAL SHOCK WHEN THEY TOUCH THE WINDSHIELD.
(4) Open these circuit breakers on the right miscellaneous relay panel, P37, and attach DO-NOT-CLOSE tags:
(a) 37E3, WINDOW HTR 2L
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(b)
37E4, WINDOW HTR 3L
(c)
37J2, WINDOW HTR 1R
S 864-063
(5) Open these circuit breakers on the miscellaneous electrical equipment panel, P70, and attach DO-NOT-CLOSE tags:
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本文链接地址：757 AMM 飞机维护手册 防冰和排雨 CHAPTER 30 - ICE AND RAIN PROTECTION(145)
