Hydra-Matic 6T40/45 Technician’s Guide PDF Free Download. The Hydra-matic 6T40/45 Technician’s Guide is another Powertrain publication from the Technician’s Guide series of books. The purpose of this publication, as is the case with other Technician’s Guides, is to provide complete information on the theoretical operating characteristics of this transmission. Operational theories of the mechanical, hydraulic and electrical components are presented in a sequential and functional order to better explain their operation as part of the system.
In the first section of this book, entitled “Principles of Operation”, detailed explanations of the major components and their functions are presented. In every situation possible, text describes component operation during the apply and release cycle as well as situations where it has no effect at all. The descriptive text is then supported by numerous graphic illustrations to further emphasize the operational theories presented.
The second section, entitled “Power Flow”, blends the information presented in the “Principles of Operation” section into the complete transmission assembly. In the first part of the Power Flow section, the mechanical transfer of torque from the engine through the transmission is graphically displayed on a full page while a narrative description is provided on the facing page. The mechanical power flow is followed by the hydraulic power flow which describes hydraulic fluid flow as it applies components or shifts valves in the system.
The third section, entitled “Complete Hydraulic Circuits”, displays complete hydraulic schematics, including active fluid passages, for each operating range. Fold-out pages containing fluid flow schematics and two dimensional illustrations of major components graphically display hydraulic circuits.
This information is extremely useful when tracing fluid circuits for learning or diagnosis purposes. The “Appendix” section of this book provides additional transmission information regarding lubrication circuits, seal locations, illustrated parts lists and more. Although this information is available in current model year Service Manuals, its inclusion provides for a quick reference guide that is useful to the technician.
Production of the Hydra-matic 6T40/45 Technician’s Guide was made possible through the combined efforts of many staff areas within the General Motors Powertrain Division. As a result, the Hydra-matic 6T40/45 Technician’s Guide was written to provide the user with the most current, concise and usable information available regarding this product.
- HOW TO USE THIS BOOK
- UNDERSTANDING THE GRAPHICS
- TRANSMISSION CUTAWAY VIEW (FOLDOUT)
- GENERAL DESCRIPTION
- PRINCIPLES OF OPERATION
- MAJOR MECHANICAL COMPONENTS (FOLDOUT)
- RANGE REFERENCE CHART
- TORQUE CONVERTER
- APPLY COMPONENTS
- PLANETARY GEAR SETS
- HYDRAULIC CONTROL COMPONENTS
- ELECTRICAL COMPONENTS
- POWER FLOW
- COMPLETE HYDRAULIC CIRCUITS
- LUBRICATION POINTS
- BUSHING, BEARING AND WASHER LOCATIONS
- SEAL LOCATIONS
- ILLUSTRATED PARTS LIST
- BASIC SPECIFICATIONS
- PRODUCT DESIGNATION SYSTEM
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