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 30-42-31-010-001
(4) Use a stand to reach the windshield wipers.
SUBTASK 30-42-31-800-001
CAUTION
DO NOT LIFT THE ARM ASSEMBLY MORE THAN NECESSARY TO LIFT THE
ARM OFF THE WINDSHIELD. YOU CAN CAUSE DAMAGE TO THE ARM
ASSEMBLY AND MAKE IT UNSERVICEABLE.
(5) Put a pad between the arm assembly and the windshield to prevent damage to the windshield
surface.
SUBTASK 30-42-31-020-001
(6) Loosen the adjustment screw [4] to remove the force on the wiper arm.
SUBTASK 30-42-31-020-002
(7) Remove the lockwire [6] from the clamping and hub holddown bolts.
SUBTASK 30-42-31-020-003
(8) Loosen the bolt [5].
SUBTASK 30-42-31-020-004
(9) Remove the bolt [7] and washer [8] from the shaft.
NOTE: Hold the arm assembly in position while you remove the bolt [8]. This will make sure
you do not turn the wiper motor shaft.
NOTE: Keep the bolt [7] and washer [8] for the windshield wiper arm installation.
SUBTASK 30-42-31-020-005
(10) Remove the arm assembly [3] from the shaft.
SUBTASK 30-42-31-020-006
(11) If necessary, remove the adjustment sleeve [10] from the shaft.
NOTE: The adjustment sleeve can stay with the wiper arm when it is removed.
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-42-31
Page 203
D633A101-ILF Oct 15/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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