Name: Allison Transmission T 375
Brand: Allison Transmission
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Important Safety Information4
Abbreviations and Acronyms5
Trademark Usage8
Iso 140009
List of Warnings10
Table of Contents16
Scope of Manual21
Introduction22
Keeping that Allison Advantage22
Driving Tips33
The Automatic Experience33
Starting the Engine33
Cold Weather Starts37
Preheating Requirement38
High Fluid Temperature39
Turning off the Vehicle40
Parking Brake40
Engine-Driven Power Takeoff (Pto All Models Except Hs and Pts)40
Driving on Snow or Ice41
Rocking out42
Towing or Pushing43
Operating down Steep Grades (Rear-Discharge Mixer)44
Using 2 Nd Reverse (4700/4800 Only)44
Selecting Range and Shift Schedules45
Selecting Range45
Using Keypad Push Button Shift Selector to Select Range46
Using Upshift and Downshift Arrow Buttons46
Using Bump-Shift Lever Selector to Select Range47
Using Strip Push Button Selector to Select Range50
Selector Display Flashing (Inhibits)52
SHIFT SELECTOR TRANSITION and OIL FIELD PUMPING (INPUT FUNCTION BZ: WIRE 142) (OFS Models)58
Shift Schedules and Automatic Range Shifts61
Upshifting61
Hold Schedule for Upshifts61
Downshifting62
Preselect Schedule for Downshifts62
Non-Engine Brake Operation62
Engine Brake or Exhaust Brake Operation63
Retarder Mode Shift Schedule64
Accelerator Control64
KICKDOWN SHIFT SCHEDULE (N/A for OFS Models)64
PRIMARY and SECONDARY SHIFT SCHEDULES (N/A for OFS Models)64
PERFORMANCE/ECONOMY SHIFT SCHEDULES (N/A for OFS Models)65
DYNAMIC SHIFT SENSING (DSS) (N/A for OFS Models)66
OVER-TEMPERATURE SHIFT SCHEDULE (N/A for OFS Models)68
Cruise Mode Shift Schedule68
Acceleration-Based Pattern (Abp)68
ACCELERATION RATE MANAGEMENT (ARM) (N/A for OFS Models)69
Low Speed Grade Assist69
ALLISON TRANSMISSION FUELSENSE 2.0 (N/A for OFS Models)70
FUELSENSE ® 2.0 Terminology Descriptions72
Driver Indicator72
Package (N/A for OFS Models))72
Using the Hydraulic Retarder73
Retarder Capacity Reduction77
Based on Retarder Temperature78
Based on Transmission Sump Temperature78
Based on Engine Water Temperature78
Retarder/Cruise Control Interactions79
Care and Maintenance80
Periodic Inspections80
Prevent Major Problems81
Importance of Transmission Fluids81
Recommended Automatic Transmission Fluids82
Keeping Fluid Clean83
Fluid Analysis83
Transmission Fluid Refill83
Periodic Fluid Level Checks84
Fluid Check Using Dipstick85
Cold Check Procedure88
Hot Check Procedure89
Transmission Dipstick Markings Illustration90
Fluid Level Checks Using Allison 5Th Generation or Newer Shift Selectors90
Electronic Fluid Level Check Prerequisites90
Electronic Fluid Level Check Procedure91
Fluid Range Detected for Oil Level Sensor (Ols)93
Invalid for Display Codes93
Prognostics Features93
Prognostics Prerequisites95
Prognostics Features Availability95
Procedure to Turn Prognostics on and off97
Normal Prognostics Indication at Engine Start98
Setting Fluid Type for Prognostics99
Oil Life Monitor (Om)100
Fluid Change Notification100
Read and Reset Oil Life Monitor (Om) from Selector101
Filter Life Monitor (Fm)102
Filter Change Notification102
Read and Reset Filter Life Monitor (Fm) from Selector102
Transmission Health Monitor (Tm)103
Clutch Maintenance Notification103
Read and Reset Tm from Selector104
Fluid and Filter Change Interval Recommendations104
Fluid and Filter Change Procedure108
Refill Transmission110
Diagnostics111
Overview111
Diagnostic Trouble Code Response111
Check Trans Light112
Using Shift Selector for Accessing Diagnostics Information113
Display Sequence113
READ/CLEAR Dtcs with KEYPAD PUSH BUTTON SELECTOR114
READING Dtcs with PROGNOSTICS PACKAGE on114
READING Dtcs with PROGNOSTICS PACKAGE off114
CLEARING Dtcs114
Exiting Diagnostic Mode115
READ/CLEAR Dtcs with BUMP-SHIFT LEVER SELECTOR115
READING Dtcs with PROGNOSTICS PACKAGE on115
READING Dtcs with PROGNOSTICS PACKAGE off115
CLEARING Dtcs116
Exiting Diagnostic Mode116
Dtc List and Description117
Shift Selectors Components and Functions130
Select/Monitor Display130
Backlighting130
Mode Button130
Trans Service Indicator (Wrench Icon)132
SELECTOR DISPLAY DESCRIPTIONS for ACTIVE DIAGNOSTIC TROUBLE CODES (Dtcs) and INHIBITS133
Selector Display Is Inoperative134
Bump-Shift Lever Selector135
Keypad Push Button Shift Selector136
Strip Push Button Shift Selector137
Customizing Controls and Tcm Programming138
Vehicle and Transmission Signal Interface Overview138
Input and Output Functions Overview138
Controls System Overview140
Transmission Control Module (Tcm) Hardware Description142
Autodetect143
Adaptive Shifting143
Communication through Vehicle Datalinks144
Information Displays144
External Wire Harnesses, Vehicle Interface Module, and Retarder Controls145
Wire Harnesses145
Vehicle Interface Module (VIM)146
Retarder Controls146
Transmission Components148
Torque Converter148
Planetary Gears and Clutches149
Cooler Circuit149
Retarder149
Control Valve Module149
Transmission Speed Sensors150
Transfer Case (Dropbox) 3700 Sp Transmission (5Th Generation Controls Only)150
General Guidelines153
Welding on Vehicle153
Painting on Vehicle153
Electrostatic Painting153
Painting of Transmission Control Components154
Environment154
Component Access Requirements154
Customer Service155
Ordering Parts155
Transmission Nameplate155
Genuine Parts155
Owner Assistance155
Service Literature157
Allison Transmission Distributors157
Revision History158

Allison Transmission T 375 User Manual

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Allison Transmission T 375 Specifications

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Brand	Allison Transmission
Model	T 375
Category	Controller
Language	English