ZF Automatic Transmissions Service Manual
FORE WORD
This manual provides information relevant to the servicing of ZF Automatic Transmission Units 4 HP 22 and 4 HP 24 E (irrespective of the vehicle range to which the unit is fitted). The manual should be used in conjunction with the rel- evant Vehicle Service Manual (VSM) and Electrical Diagnostic Manual (EDM).
It assumes that the transmission has been removed from the vehicle, in accordance with the Vehicle Service Manual,
and is
in a clean condition and all service tools and materials are available.
The manual is divided into two sections covering the ZF
4 HP 22 and ZF 4 HP 24 E and each section is divided into sub- sections covering:
0 Service Information
0 General Description
0 Hydraulic Circuit Diagrams
0 Fault Diagnosis
o Service Repair Operations.
An index can be found at the rear of the manual.
Ne@: For information relating to in-vehicle operations, refer to the Vehicle Service Manual.
ii Issue 1 August 1994
