Allison MT/HT/CT Series On-Highway Transmissions Electronic Controls Operator's Manual

About this manual

This document serves as an Operator's Manual (OM1957EN) for Allison Transmission's MT(B), HT(B), and CT Series on-highway automatic transmissions. It provides instructions for drivers to maximize the benefits of these rugged AUTOMATICS, covering operation, safety warnings, and specific driving techniques.

What's inside

• Warnings, Cautions, and Notes
• Introduction
• Typical MT, HT, CT Series Transmission Models
• A Brief Description of the Allison Automatic Electronic Control
• Torque Converter
• Lockup Clutch
• Planetary Gears and Clutches
• Output Retarder
• Input Retarder
• Cooler, Filter Circuits

Frequently asked questions

What is the purpose of a warning in this manual?

A warning is used when an operating procedure could result in personal injury or loss of life if not correctly followed.

What is the purpose of the warnings and cautions in this manual?

Warnings are used when an operating procedure could result in personal injury or loss of life, while cautions are used when a procedure could result in damage to or destruction of equipment.

What is the responsibility of the user regarding service procedures not recommended by Allison Transmission?

Anyone using a service procedure or tool not recommended by Allison Transmission must first be thoroughly satisfied that neither personal safety nor equipment safety will be jeopardized.

What types of service literature are available for the MT, HT, and CT series transmissions?

Available publications include a Service Manual, Parts Catalog, Troubleshooting Manual, Mechanic's Tips, and a Technician's Guide.