1 / 18

ELECTRICAL ACCESSORIES

ELECTRICAL ACCESSORIES. CHAPTER 11. WINDSHIELD WIPERS SYSTEMS OPERATION. CHAPTER 11. OBJECTIVES. Explain operation of 2 and 3 speed wiper motors, permanent magnet and electromagnetic field designs Describe intermittent wipers Explain depressed wipers Explain washer pump systems.

devika
Download Presentation

ELECTRICAL ACCESSORIES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ELECTRICAL ACCESSORIES CHAPTER 11

  2. WINDSHIELD WIPERS SYSTEMS OPERATION CHAPTER 11

  3. OBJECTIVES • Explain operation of 2 and 3 speed wiper motors, permanent magnet and electromagnetic field designs • Describe intermittent wipers • Explain depressed wipers • Explain washer pump systems

  4. TYPES OF WIPER SYSTEMS • STANDARD TWO & THREE SPEED SYSTEM • TWO OR THREE SPEED WITH INTERMITTENT OPERATION • BOTH CAN INCLUDE DEPRESSED FEATURE • INTERMITTENT WIPER SYSTEMS

  5. PERMANENT WIPER MOTORS • MOTORS USE PERMANENT MAGNET FIELDS • SPEED IS CONTROLLED BY BRUSH PLACEMENT • 3 BRUSHES, COMMON, LOW , HIGH FIG 11-12

  6. ELECTROMAGNETIC FIELD MOTORS • SPEED CONTROLLED BY SHUNT FIELD • USUALLY GROUND TYPE SWITCH CONTROLLED • OFF POSITION 11-19

  7. LOW SPEED 2 SPEED SYSTEM

  8. HIGH SPEED2 SPEED SYSTEM

  9. PARKING2 SPEED SYSTEM 11-22

  10. 3 SPEED SYSTEMMEDIUM POSITION 11-25

  11. INTERMITTENT WIPERS • Power for wiper motor is supplied by module (capacitor) • Module uses low speed circuit • Motor uses park contact to make one sweep per activation FIG 11-29. CLASS MANUAL

  12. INTERMITTENT WIPERS

  13. DEPRESSED WIPER SYSTEM • CURRENT TRAVELS THROUGH WIPER/WASHER SWITCH TWICE. • DOUBLE PARK SWITCHES PROVIDE REVERSE CURRENT THROUGH IN PARK POSITION ALLOWING 15 DEGREES REVERSE MOTOR ROTATION. SEE C338 - 339

  14. DEPRESSED IN LOW SPEED

  15. DEPRESSED WHEN PARKING

  16. DEPRESSED OFF AFTER PARKING

  17. WASHER PUMPS • PUMPS CAN BE EXTERNAL OR INTERNAL TO WIPER MOTOR ASSY. • INTERMITTENT WIPERS HAVE TIMED WASHER 11-36 C341

  18. THE END OF WIPERS SYSTEMS

More Related