Allison Transmission MT 654CR User Manual

Operator’s Manual
AT, MT, HT Series
On-Highway Transmissions
OM1334EN

Allison Transmission MT 654CR Specifications

General

Brand	Allison Transmission
Model	MT 654CR
Category	Microphone system
Language	English

Summary

Warnings, Cautions, and Notes

WARNING

Definition of a WARNING statement, indicating potential personal injury or loss of life.

CAUTION

Definition of a CAUTION statement, indicating potential equipment damage or destruction.

Introduction

Keeping That Allison Advantage

Highlights benefits of Allison automatics for drivers and their rugged design for reliable service.

A Brief Description of the Allison Automatic

Torque Converter

Explains the three elements of a torque converter: pump, turbine, and stator, and their function.

Lockup Clutch (AT 1500, MT(B) 600, HT 700)

Allison Automatics

Typical AT, MT, HT Shift Selector Positions

Range Selection — AT 500 Series and AT 1500 Series With a Second Neutral (Park)

Range Selection — AT 500 Series and AT 1500 Series Without a Second Neutral (Park); MT 640, MT(B) 643, MT 643R, MT(B) 644, MT 647; HT 740, HT 747

Range Selection — MT 650; MT(B) 653DR

Range Selection — HT 750CR, HT 754CR, MT(B) 654CR

D (Drive)

Range Selection — HT 750DR, HT 750DR DB

2-5 D

Driving Tips

Throttle Control

Operating in Cold Weather

Provides cautions and procedures for operating the transmission in cold weather conditions.

Using the Engine for Downhill Braking to Slow the Vehicle or Equipment

Using the Hydraulic Retarder

Towing or Pushing

Driving on Ice or Snow

Care and Maintenance

Periodic Inspections

Lists essential items to inspect on the transmission and its fluid for regular maintenance.

Prevent Major Problems

Importance of Proper Fluid Level

Transmission Fluid Check Procedure

Cold Check

Procedure for checking transmission fluid level when cold, determining minimum safe operating fluid.

Hot Check

Procedure for checking transmission fluid level at operating temperature for accurate readings.

Keeping Fluid Clean

Fluid Contamination

Examine at Fluid Change

Guidance on examining drained fluid for dirt, coolant, or metal particles indicating potential issues.

Metal Particles

Explains that metal particles in fluid indicate transmission damage, requiring disassembly and inspection.

Coolant Leakage

Procedure for dealing with coolant leaks into the transmission system and its consequences.

Fluid Analysis

Customer Service

Owner Assistance