Allison Transmission MT 653 User Manual

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

Allison Transmission MT 653 Specifications

General

Brand	Allison Transmission
Model	MT 653
Category	Microphone system
Language	English

Summary

Warnings, Cautions, and Notes

Understanding Manual Indicators

Shift Selectors

Shift Selector Positions by Model

Details shift selector positions for various AT, MT, and HT transmission models.

Range Selection: AT 500/1500 w/ Park

Range Selection: AT 500/1500 w/o Park, MT, HT Models

Range Selection: MT 650; MT(B) 653DR

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

Range Selection: HT 750DR, HT 750DR DB

Driving Tips

Downhill Braking & Hydraulic Retarder

Explains using the engine for downhill braking and operating the hydraulic retarder.

Temperature Overheating Cautions

Care and Maintenance

Periodic Inspections

Outlines essential periodic inspections for the transmission.

Preventing Problems & Fluid Level

Discusses preventing major problems and the importance of fluid level.

Transmission Fluid Check Procedure

Provides step-by-step instructions for checking transmission fluid.

Cold Fluid Check

Details the procedure for checking transmission fluid when cold.

Hot Fluid Check & Dropbox Fluid

Explains hot fluid checks and dropbox fluid checking procedures.

Fluid Cleanliness & Recommendations (Non-MT 643R)

Emphasizes clean fluid and lists recommended fluids for non-MT 643R.

Fluid Recommendations for MT 643R

Specifies recommended fluids and grades for MT 643R transmissions.

Fluid and Filter Change Intervals

Provides a table detailing fluid and filter change intervals for various models.

Fluid Contamination & Analysis