Manual Caja Automatica Zf4-Hp20

CITROËN

TECHNICAL TRAINING

ZF 4HP20 AUTOMATIC TRANSMISSION

CITROËN UK LTD
221 BATH ROAD SLOUGH SL1 4BA

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DEALER PERSONNEL DEVELOPMENT AND TRAINING

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© CITROËN UK LTD. Reproduction whether partial or in full without written permission from Citroën UK Ltd is forbidden

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CONTENTS
CHAPTER 1 : PRESENTATION -GENERAL.............................
III III IV VVI VII INTRODUCTION.................................................................................. PRESENTATION.................................................................................. DESCRIPTION ..................................................................................... IDENTIFICATION OF THE COMPONENTS OF THE AUTOMATIC TRANSMISSION.................................................................................. SPECIFICATIONS - MAINTENANCE.................................................. TIGHTENING TORQUES .................................................................... LAYOUT OF THE 4HP20 AUTOMATIC TRANSMISSION.................. PAGE PAGE PAGE PAGE PAGE PAGE PAGE 1 1 3 4 5 7 8

PAGE 10 PAGE 11 PAGE 13

VIII - MISCELLANEOUSNOTES .................................................................

CHAPTER 2 : SELECTOR CONTROL .......................................
III III SELECTOR LEVER ............................................................................. PROGRAM SELECTOR ...................................................................... DISPLAY ON CONTROL PANEL........................................................

PAGE 13 PAGE 15 PAGE 16 PAGE 19

CHAPTER 3 : LUBRICATION.....................................................
III III IV VLUBRICATION CIRCUIT...................................................................... OIL GRADE .......................................................................................... PERIPHERALCOMPONENTS............................................................ CHECKING THE OIL LEVEL ............................................................... DRAINING - REFILLING THE TRANSMISSION .................................

PAGE 19 PAGE 20 PAGE 20 PAGE 24 PAGE 26 PAGE PAGE 27 29

CHAPTER 4 : THE HOUSINGS .................................................. CHAPTER 5 : THE TORQUE CONVERTER ..............................
III IIIDESCRIPTION ..................................................................................... SPECIFICATIONS................................................................................ LOCK-UP DEVICE ...............................................................................

PAGE 29 PAGE 30 PAGE 31

ZF 4HP20 AUTOMATIC TRANSMISSION
© AUTOMOBILES CITROËN Toute reproduction outraduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon

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CONTENTS
CHAPTER 6 : THE FINAL DRIVE...............................................
III III DESCRIPTION .................................................................................... FUNCTION.......................................................................................... PARK LOCK SYSTEM ........................................................................ PAGE 35

PAGE 35 PAGE 37 PAGE 38 PAGE 41

CHAPTER 7 : THE MECHANISM ...............................................
III III IV VINTRODUCTION ................................................................................. THE EPICYCLIC GEARTRAIN........................................................... BRAKES AND CLUTCHES ................................................................. OBTAINING THE GEARS ................................................................... COMPLETE OVERVIEW OF THE AUTOMATIC TRANSMISSION ...

PAGE 41 PAGE 43 PAGE 46 PAGE 50 PAGE 60 PAGE 63

CHAPTER 8 : THE HYDRAULIC CIRCUIT ................................
III III FUNCTIONS...