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Allison Transmission HT 740D

Allison Transmission HT 740D
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Operator’s Manual
AT, MT, HT Series
On-Highway Transmissions
OM1334EN
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Allison Transmission HT 740D Specifications

General IconGeneral
BrandAllison Transmission
ModelHT 740D
CategoryMicrophone system
LanguageEnglish

Summary

Warnings, Cautions, and Notes

Understanding Manual Indicators

Explains the purpose and usage of Warning, Caution, and Note indicators in the manual.

Shift Selectors and Range Operation

Range Selection: AT 5001500 Series (with Park)

Details 'P', 'R', 'N', 'D' positions and their operational implications for specific models.

Range Selection: AT 5001500 Series (without Park)

Explains 'R', 'N', 'D' positions for models lacking a Park option.

Range Selection: MT 650 MT(B) 653 DR

Explains the range selections (2-5, D, 2-4, 2, 1) for MT 650 and MT(B) 653DR.

Range Selection: HT 750 CRHT 754 CRMT(B) 654 CR

Describes range selections (R, N, D, 4, 3, 2, 1) for HT 750CR, HT 754CR, MT(B) 654CR.

Range Selection: HT 750 DRHT 750 DR DB

Explains range selections (R, N, 2-5, 2-4, 2-3, 1) for HT 750DR and HT 750DR DB.

Driving Tips

Advanced Driving Techniques

Power Takeoff (PTO) Operation

Care and Maintenance

Maintaining Correct Fluid Level

Explains the importance of fluid level for cooling, lubrication, and power transmission.

Transmission Fluid Check Procedures

Step-by-step instructions for checking transmission fluid levels accurately.

Ensuring Transmission Fluid Cleanliness

Cautions and procedures to maintain fluid cleanliness during filling and maintenance.

Recommended Transmission Fluids and Grades

Specifies approved fluids and viscosity grades for various transmission models.

Fluid and Filter Change Intervals

Table outlining recommended service intervals for fluid and filter changes.

Detecting and Managing Fluid Contamination

Guidance on examining fluid for contaminants and related actions.

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