Volvo Transmission Manual (EN)

Foreword The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to October 2009. The products are under continuous development. Vehicles and components produced after the above date may therefore have different specifications and repair methods. When this is believed to have a significant bearing on this manual, supplementary service bulletins will be issued to cover the changes. The new edition of this manual will update the changes. In service procedures where the title incorporates an operation number, this is a reference to an V.S.T. (Volvo Standard Times).

Service procedures which do not include an operation number in the title are for general information and no reference is made to an V.S.T. Each section of this manual contains specific safety information and warnings which must be reviewed before performing any procedure. If a printed copy of a procedure is made, be sure to also make a printed copy of the safety information and warnings that relate to that procedure. The following levels of observations, cautions and warnings are used in this Service Documentation: Note: Indicates a procedure, practice, or condition that must be followed in order to have the vehicle or component function in the manner intended. Caution:

Indicates an unsafe practice where damage to the product could occur. Warning: Indicates an unsafe practice where personal injury or severe damage to the product could occur. Danger: Indicates an unsafe practice where serious personal injury or death could occur. Volvo Trucks North America, a division of Volvo Group North America, Inc. Greensboro, NC USA Order number: PV776-88946390 Repl: PV776-20184637 © 2009 Volvo Group North America, Inc., Greensboro, NC USA All rights reserved.

No part of this publication may be reproduced, stored in retrieval system, or transmitted in any forms by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of Volvo Trucks North America, a division of Volvo Group North America, Inc. USA38721

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Contents Design and Function .................................................................................................................... 3 MID 130 Transmission Control Unit............................................................................................... 3 MID 223 Gear Selector Control Unit.............................................................................................. 6 Troubleshooting .......................................................................................................................... 7 MID 130 Transmission Control Unit, Fault Codes............................................................................

7 MID 223 Gear Selector Control Unit, Fault Codes ........................................................................... 54 1

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Group 43 MID 130 Transmission Control Unit Design and Function MID 130 Transmission Control Unit The manufacturer diagnostic tool is the preferred tool for performing diagnostic work. Contact your local dealer for more information or visit “www.premiumtechtool.com”. System Overview The I-Shift transmission is a technologically advanced automated mechanical transmission, designed specifically to work in conjunction with Volvo’s new family of heavy-duty diesel engines. In order to work as a total package, the I-Shift is programmed with each engines’ efficiency map and is offered with different software options to fulfill each operators needs. disc automated clutch system is utilized.

The I-Shift is a "two pedal" transmission and does not require a clutch pedal. The I-Shift uses compressed air and electrical solenoids to perform shift functions, clutch control and countershaft brake functions. All of these functions are timed and controlled by the Transmission Control Module (TCM). A dedicated air tank is needed on the vehicle to supply air for these components. The air is plumbed to the transmission via a supply line and is distributed to the other components internally. The air control solenoids are housed in the Transmission Control Housing and in the Clutch Control Valve Assembly.

All variants of the Volvo I-Shift have 12 forward speeds and up to 4 reverse speeds depending on programming. It is a single countershaft transmission built up with a splitter section, a main section with three forward and one reverse gear, and a range gear section. It is an automated mechanical transmission and uses synchronizers in its splitter and range gears but not in the main section. The main section utilizes a countershaft brake to mesh gears and equalize shaft speeds as needed. A single All Volvo Truck models will be available with this transmission including the VT, VN Series & VHD vocational trucks.

Four I-Shift models will be offered to support the power ranges of the engines as well as offering different gear arrangements: 3 Transmission Model AT2512C ATO2512C AT2612D ATO2612D AT2812C ATO3112C ATO3112D Operation Two Pedal Two Pedal Two Pedal Two Pedal Two Pedal Two Pedal Forward Speeds 12 12 12 12 12 12 Engines Available D11/D13 D11/D13 D11/D13 D11/D13 D16 D16 Overall Ratio 14.94:1 15.04:1 14.94:1 15.04:1 14.94:1 15.04:1 Top Ratio Direct 1.00:1 Overdrive 0.78:1 Direct 1.00:1 Overdrive 0.78:1 Direct 1.00:1 Overdrive 0.78:1 Weight lbs (kg) 597 (275) 597 (275) 597 (275) 597 (275) 610 (281) 610 (281)

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