(3)
IPC 30-40-00 Fig. 10
(4)
SSM 30-42-00
(5)
WDM 30-42-01
D. Access
(1) Location Zone
101 Control Cabin - Left
102 Control Cabin - Right
E. Procedure
S 424-011
(1)
Attach the wiper blade to the wiper arm with the blade nut.
S 824-012
(2)
Make sure the angle between the wiper blade and the wiper arm is from 22 to 24 degrees (Fig. 401).
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A 737-300/400/500MAINTENANCE MANUAL
S 864-010
(3) Supply electrical power (Ref 24-22-00/201).
S 864-013
(4) Make sure these circuit breakers are closed: (a) On the P18 panel 1) WIPERS-LEFT 2) WIPERS-RIGHT
S 724-014
(5) Do a check to make sure the wiper motor and the converter operate together correctly. (a) Put the windshield wiper switch in the LOW position. (b) Put the windshield wiper switch in the PARK position. (c) Make sure the converter shaft cannot rotate more to the PARK position.
NOTE:____ When the wiper motor is in the PARK position the converter shaft must be in the PARK position also.
S 644-015
(6) Put grease on the adjustment sleeve and the converter shaft.
S 434-016
(7) Put the adjustment sleeve on the converter shaft.
S 404-017
(8) Install the wiper arm in the PARK position. (a) Put the windshield wiper arm on the converter shaft with the wiper in the PARK position. (b) Put a spring scale on the wiper blade where it connects to the wiper arm. (c) Push down along the windshield with a 2 to 3 pound force on the wiper blade. (d) Make sure the wiper blade does not touch the metal structure.
S 824-018
(9) Adjust the position of the wiper blade if it is necessary. (a) Put a temporary mark on the converter shaft and the wiper arm. (b) Remove the wiper arm from the converter shaft. (c) Rotate the wiper arm in the necessary direction.
NOTE:____ One serration of the adjustment moves the end of the wiper approximately 0.03 inch. You must keep the slot in the adjustment sleeve less than 30 degrees from the slot in the wiper arm.
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737-300/400/500MAINTENANCE MANUAL
S 424-019
(10)
Put the wiper arm on the converter shaft.
S 434-020
(11)
Install lockwire on the bolt that holds the wiper arm to the shaft.
S 434-021
(12)
Tighten the screw that holds the adjustment sleeve.
S 434-022
(13)
Install lockwire on the screw.
S 724-023
(14)
Do a test of the windshield wiper assembly (Ref 30-42-11/501).
S 864-024
(15)
Remove electrical power if it is not necessary (Ref 24-22-00/201).
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A
737-300/400/500MAINTENANCE MANUAL
WINDSHIELD WIPER ASSEMBLY - ADJUSTMENT/TEST
___________________________________________
1. General_______
A. This procedure contains a task to adjust the windshield wiper assembly.
B. This procedure adjusts the pressure of the windshield wiper on the window. After you adjust the pressure, you will operate the windshield wipers to make sure they are adjusted correctly.
TASK 30-42-11-705-001
2. Windshield Wiper Assembly Adjustment____________________________________
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