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 WINDSHIELD WIPER DRIVE ASSEMBLY - REMOVAL/INSTALLATION
______________________________________________________
 1.  General
_______ ú A. This procedure contains these tasks: ú (1) The removal of the drive assembly for the windshield wiper.
 (2) The installation of the drive assembly for the windshield wiper.
 TASK 30-42-21-004-001
 2.  Windshield Wiper Drive Assembly Removal (Fig. 401)
_______________________________________
 A. References ú (1) AMM 22-11-32/401, Autoflight Status Annunciator ú (2) AMM 28-41-51/401, Fuel Quantity Indicator ú (3) AMM 30-42-11/401, Windshield Wiper Assembly ú (4) AMM 34-12-21/401, Air Data System Indicators
 (5)
AMM 34-22-21/401, EADI Display Unit. ú (6) AMM 34-25-11/201, Standby Horizon Indicator ú (7) AMM 34-28-81/401, Radio Digital Distance Magnetic Indicator ú (8) AMM 34-28-91/401, Vertical Speed Indicator

 (9)
AIPC 30-40-00 Fig. 10

 (10)
 SSM 30-42-00

 (11)
 WDM 30-42-01

 B.  Access
 (1)  Location Zone
 101 Control Cabin - Left
 102 Control Cabin - Right

 C.
Procedure ú ú S 024-031 ú (1) Do these steps to remove the left wiper drive assembly:

 (a) Open these circuit breakers and attach DO-NOT-CLOSE tags:
 1)  On the P18 panel a) WIPER-L b) 18A01, STAB TRIM SERVO
 2)  On the P6-3 panel a) 6D15, MASTER DIM SECT 6
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 30-42-21
 ALL  ú ú 02.1 Page 401 ú Jul 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

SEE A
GROUND LEAD
BOLT (3 LOCATIONS)
MOTOR-CONVERTER ASSEMBLY
INBD 
FWD  ELECTRICAL CONNECTOR 
A 

Windshield Wiper Drive Assembly Installation
Figure 401

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 30-42-21
 ALL  ú ú 01 Page 402 ú Mar 15/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 
737-300/400/500MAINTENANCE MANUAL
 b) 6C14, MASTER DIM SECT 2
 c) 6C12, DIM & TEST
 3) On the P6-2 panel
 a) 6B09, AUTO SPEED BRAKE
 (b) Remove the windshield wiper assembly (AMM 30-42-11/401).
 ú  (c) Loosen screws that attach P1-3 instrument panel and move
 ú  slightly aft.
 ú  (d) Disconnect the following electrical connectors and pitot/static
 ú  quick disconnects that are connected to the P1-3 panel mounted
 ú  indicators and lights:
 ú  1) Altimeter (AMM 34-12-21/401)
 ú  2) Standby Altimeter/Airspeed Indicator (AMM 34-12-21/401)
 ú  3) Standby Horizon Indicator (AMM 34-25-11/201)
 ú  4) Vertical Speed Indicator (AMM 34-28-91/401)
 ú  5) Fuel Quantity Indicator (AMM 28-41-51/401)
 ú  6) AIRPLANES WITH EFIS;
 ú  Autoflight Status Annunciator (AMM 22-11-32/401)
 ú  (e) Disconnect electrical connectors D423 and D895.
 ú  (f) Remove the P1-3 instrument panel. If necessary remove the EADI
 ú  display unit (AMM 34-22-21/401).
 (g) Disconnect electrical connector D62 from the left drive motor.
 (h) Remove the bolts that attach the support fitting to the
 structure.
 (i) Remove the ground wire from the drive motor.
 ú
 ú  S 024-032
 ú  (2)  Do these steps to remove the right wiper drive assembly:
 ú  (a) Open these circuit breakers and attatch DO-NOT-CLOSE tags:
 ú  1) On the P18 panel
 ú  a) WIPER-R
 ú  2) On the P6-3 panel
 ú  a) 6D15, MASTER DIM SECT 6
 ú  b) 6C16 or 6D18, LANDING GEAR BRAKE TEMP (if installed)
 ú  3) On the P6-2 panel
　
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