Volvo i-shift transmission Operator's Manual

Volvo Trucks. Driving Success.

R

OPERATOR'S MANUAL

i-shift transmission

Table of Contents i

Foreword ................................................................................... 1

Safety Information ................................................................ 2

Volvo I-Shift Transmission ....................................................... 4

General Information .............................................................. 4

Gear Selector ......................................................................... 6

I-Shift Transmission Features ............................................... 9

Starting and Stopping .......................................................... 14

Driving ................................................................................ 15

Towing ................................................................................ 22

Maintenance ........................................................................ 22

Index ........................................................................................ 27

ii Notes

Foreword 1

FOREWORD

This manual contains information concerning the safe operation of your
vehicle. It is extremely important that this information is read and understood
before the vehicle is operated. Please keep this manual in the vehicle at all
times.

It is important that this manual stays with the vehicle when it is sold.
Important safety information must be passed on to the new customer.

Illustrations in this manual are used for reference only and may differ slightly
from the actual vehicle, however, key components addressed in the manual are
represented as accurately as possible.

All information, illustrations and specifications contained in this manual are
based upon the latest product information available at the time of publication.
Volvo Trucks North America reserves the right to make changes at any time or
to change specifications or design without notice and without incurring
obligation.

The National Highway Traffic Safety Administration (NHTSA) and Volvo
Trucks North America should be informed immediately if you believe that the
vehicle has a defect that could cause a vehicle accident, injury or death.

Contact NHTSA by calling the Auto Safety Hotline at 1 [phone], by
writing to NHTSA, U.S. Department of Transportation, Washington, DC
20590, by TTY at 1 [phone], or visit their website at
www.nhtsa.dot.gov.

Volvo Trucks North America

Greensboro, NC USA

Order number: PV776-20906026

Volvo Group North America, Inc. 2007. 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.

2 Foreword

SAFETY INFORMATION

IMPORTANT: Before driving this vehicle, be certain that you have read
and that you fully understand each and every step of the driving and
handling information in this manual. Be certain that you fully understand
and follow all safety warnings. It is extremely important that this
information is read and understood before the vehicle is operated.

IT IS IMPORTANT THAT THE FOLLOWING INFORMATION BE READ,
UNDERSTOOD AND ALWAYS FOLLOWED.

The following types of advisories are used throughout this manual:

A danger directs the operator's attention to unsafe practices which could
result in serious personal injury or death. The danger title is in white type
on a black background.

A warning directs the operator's attention to unsafe practices which
could result in personal injury. The warning title is in black type on a
gray background.

A caution directs the operator's attention to unsafe practices where property
damage could occur. The caution title is in black type on a white background.

A note defines an operating procedure, practice, condition, etc., which is
essential to proper operation of the vehicle.

Foreword 3

Labels

Danger, Warning, Caution and Advisory labels are placed in various locations
on the vehicle to alert drivers and service technicians about situations that may
lead to personal injury or equipment damage. In the event that a label is
damaged or missing the label must be replaced. Contact your authorized
Volvo Truck dealer for assistance regarding labels.

I-Shift Transmission Labels

There are labels with operating information about the I-Shift transmission
located on the driver's side sun visor. It is extremely important that this
information is read and understood before the vehicle is operated.

I-Shift Transmission Sun Visor Labels Location

4 Volvo I-Shift Transmission

VOLVO I-SHIFT TRANSMISSION

GENERAL INFORMATION

The Volvo I-Shift transmission is a single countershaft transmission with 12
forward gears and two reverse gears. Some vehicles have four reverse gears.
The I-Shift is an automated mechanical transmission. The transmitted torque
(both engine and braking) will be interrupted during gear shifting, in both
driving and coasting conditions. There is no clutch pedal and the gearshift is
controlled by the ergonomic gear selector. The I-Shift is available as an
overdrive or direct drive transmission.

Nomenclature and Ratios

The I-Shift transmission is available in four configurations:

앫 AT2512C – Direct Drive for Volvo D11 and D13 Engines

앫 ATO2512C – Overdrive for Volvo D11 and D13 Engines

앫 AT2812C – Direct Drive for Volvo D16 Engine

앫 ATO3112C – Overdrive for Volvo D16 Engine

NOMENCLATURE

AT O XX 1 2 C

Maximum Input
Automated
Mechanical
Transmission

Gear Selection AT2512C and AT2812C

1st 14.94:1 11.73:1

2nd 11.73:1 9.21:1

3rd 9.04:1 7.09:1

4th 7.09:1 5.57:1

5th 5.54:1 4.35:1

6th 4.35:1 3.41:1

7th 3.44:1 2.70:1

8th 2.70:1 2.12:1

9th 2.08:1 1.63:1

10th 1.63:1 1.28:1

11th 1.27:1 1.00:1

12th 1.00:1 0.78:1

Reverse Gear R1 17.48:1 13.73:1

Reverse Gear R2 13.73:1 10.78:1

Reverse Gear R3 4.02:1 3.16:1

Reverse Gear R4 3.16:1 2.48:1

O = Overdrive
No Letter = Direct
Drive

GEAR RATIOS

Torque Nm (lb-ft)

25 = 2500 (1850)

28 = 2800 (2050)

31 = 3100 (2300)

Forward
Speeds

ATO2512C and

ATO3112C

Design
Level

Volvo I-Shift Transmission 5

Identification Tag

Each transmission has two identification tags. One is on the top of the clutch
housing and the other is on the back of the range housing. Write the serial
number in the space provided below.

Serial Number ________________________

Display

The Driver Information Display (DID) in the instrument cluster provides
current operating information about the I-Shift transmission. The I-Shift
information is always displayed in a portion of the DID.

Driver Information Display with I-Shift Transmission

1. Gear Selector Pattern is shown

in the display so the driver does
not have to look down at the
gear selector to determine which
way to move the gear lever to
obtain a different gear range.

2. Selected Gear Position

indicates the current position of
the gear lever.

3. Available Gears Down

indicates the number of
downshifts with the current
vehicle operating conditions.

4. Current Gear indicates the

current transmission operating
gear.

5. Available Gears Up indicates

the number of upshifts with the
current vehicle operating
conditions.

6. Driving Mode indicates if the

transmission is operating in
Economy or Performance mode.

6 Volvo I-Shift Transmission

GEAR SELECTOR

Two gear selectors are available with the I-Shift transmission: Premium and
Basic. The gear selector is attached to the driver’s seat. There are four gear
selector positions: R, N, D and M. When the gear lever is in the R position, the
reverse gears are engaged. The N position places the transmission in neutral.
The D position is the automatic drive mode. With the Premium gear selector,
the M position allows the driver to manually select the operating and starting
gear. With the Basic gear selector, the M position holds the current operating
gear and puts the transmission in first gear when starting from a stop.

The gear selector lock must be depressed to move the gear lever from the N
position. The gear lever can be moved from the R position to N, back and forth
between the D and M positions, and from the D position to N without pressing
the gear selector lock.

Basic Gear Selector Shown

Volvo I-Shift Transmission 7

Premium Gear Selector Shown

1. Gear Lever

2. Economy/Performance Button
(Premium gear selector only)

4. Manual Gear Selection Buttons
(Premium gear selector only)

5. Fold Button

3. Gear Selector Lock

With the Premium gear selector, the manual gear selection buttons allow the
operator to manually select the operating gear in both the automatic and
manual driving modes. Also, the operator can use the manual gear selection
buttons to select the vehicle start gear and the idle driving gear.

Premium gear selectors have an Economy/Performance button. The
transmission is in Economy mode when the vehicle is started. Press the E/P
button to enable Performance mode.