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757 MAINTENANCE MANUAL
 WINDSHIELD WIPER SYSTEM - ADJUSTMENT/TEST
_________________________________________
 1.  General_______
 A.  This section contains two tasks. The first task is an Operational Test of the Windshield Wiper System. The second task is the Adjustment of the Windshield Wiper System.
 B.  The operational test makes sure that the windshield wiper system is serviceable with only the equipment installed in the airplane.
 C.  The adjustment procedures included in this section are wiper sweep and speed adjustment, wiper arm/blade park position adjustment, and wiper arm pressure adjustment.
 TASK 30-42-00-715-001
 2.  Operational Test - Windshield Wiper System__________________________________________
 A.  General
 (1)  The Operational Check is to make sure of good windshield wiper system performance. It is not to prove adjustments or to substitute for the system test.
 B.  References
 (1)  24-22-00/201, Electrical Power - Control
 C.  Access
 (1)  Location Zones
 211 Control cabin - section 41 (Left)
 212 Control cabin - section 41 (Right)

 D.  Operational Check - Windshield Wipers
 S 865-002
 (1)  
Make sure the WIPER switch on the windshield wiper/rain repellent module on the pilots' overhead panel P5 is in the OFF position.

 S 865-003

 (2)
Supply electrical power to the main ac buses (Ref 24-22-00).

 S 865-004
 CAUTION:_______DO NOT OPERATE THE WIPERS ON A DRY WINDSHIELD. THE WINDSHIELD CAN BE DAMAGED BY THE WIPER MOVEMENT.
 (3)  
Supply water to keep the windshield wet when the wipers are in operation.

 (4)  
Put the WIPER switch on panel P5 in the HIGH position.

 (5)
Make sure the wipers move smoothly and freely at the high speed.

 S 715-008

 (6)  
Make sure the wiper sweep is on the windshield, and that the blades do not go over the windshield seal.

 S 865-006
 S 715-007
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757
MAINTENANCE MANUAL

 S 865-009
 (7)  
Put the WIPER switch in the LOW position.

 S 715-010

 (8)
Make sure the wipers move smoothly and freely at the low speed.