Open this circuit breaker and install safety tag:
CAPT Electrical System Panel, P18-3
Row Col Number Name
B 3 C00054 ANTI-ICE & RAIN WSHLD WIPER LEFT
SUBTASK 30-42-21-860-003
(3) For the right windshield wiper motor/convertor:
Open this circuit breaker and install safety tag:
CAPT Electrical System Panel, P18-3
Row Col Number Name
B 1 C00055 ANTI-ICE & RAIN WSHLD WIPER RIGHT
SUBTASK 30-42-21-020-001
(4) Remove the windshield wiper arm. To remove the wiper arm, do this task: Windshield Wiper
Arm Removal, TASK 30-42-31-000-801.
SUBTASK 30-42-21-010-001
(5) Remove the display unit. To remove the unit, do this task: Display Unit Removal,
TASK 31-62-11-000-801.
SUBTASK 30-42-21-020-006
(6) Remove the P1-3 panel for Captain side and P3-1 panel for F/O side.
F. Wiper Motor/Converter Removal
SUBTASK 30-42-21-150-001
CAUTION
BE CAREFUL WHEN YOU REMOVE THE SEAL WITH THE SEALANT
REMOVAL TOOL. DAMAGE TO THE AIRPLANE SKIN CAN OCCUR.
(1) Remove the sealant, with a sealant removal tool, COM-2481, from the area around the wiper
motor shaft on the outside of the airplane.
SUBTASK 30-42-21-020-002
(2) Remove the ground wire from the wiper motor.
(a) Remove the nut [4] and washer [5].
SUBTASK 30-42-21-020-003
(3) Remove the electrical connector [6].
SUBTASK 30-42-21-020-004
(4) Remove the screws [2] and washers [3].
SUBTASK 30-42-21-020-005
CAUTION
YOU MUST BE CAREFUL WHEN YOU REMOVE THE WIPER MOTOR/
CONVERTER. THE WIPER SHAFT MAY TEAR THE RUBBER SEAL WHERE
THE SHAFT PIERCES THE AIRPLANE SKIN.
(5) Remove the wiper motor converter [1].
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-42-21
Page 404
D633A101-ILF Feb 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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