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General| Model | AT-1202 |
|---|---|
| Category | Industrial Equipment |
| Transmission Type | Manual |
| Number of Speeds | 12 |
| Torque Capacity | 1200 lb-ft |
Details the AT-1202 model as a two-speed, twin countershaft auxiliary transmission for heavy-duty use.
Illustrates shift positions and provides technical specifications including gear ratios, mountings, and weight.
Outlines requirements for lubricants, operating angles, and oil type considerations for the transmission.
Lists checks for oil leaks, lubricant levels, shift controls, capscrews, and mountings for preventative care.
Identifies specialized tools needed for transmission repair, including part numbers and manufacturers.
Provides recommended torque values for capscrews and nuts for proper assembly and performance.
Provides essential precautions and guidelines for safely disassembling the transmission unit.
Details the procedure for removing companion flanges or yokes from the transmission shafts.
Explains the steps involved in detaching the rear plate from the front case of the transmission.
Guides the removal of the air-assisted shifting control assembly from the transmission.
Details the process for removing the manual shifting control assembly from the transmission.
Outlines the procedure for detaching the countershaft assemblies, including bearings and snap rings.
Describes the steps for removing the output shaft and its associated reduction gear assembly.
Explains the disassembly process for the rear bearing assembly, including housing and components.
Details the procedure for removing the input shaft and the drive gear assembly.
Guides the removal of the front bearing housing assembly from the transmission.
Provides instructions for disassembling the front case, including removing specific covers and items.
Covers pre-assembly checks for bearings, gears, splines, and general reassembly guidelines.
Details the procedure for assembling the input shaft and coupling shaft with proper alignment and fasteners.
Explains the steps for assembling the front bearing housing, including bearing and seal installation.
Guides the assembly of the output shaft with the reduction gear, including bearing and washer installation.
Details the process of installing the output shaft and the rear bearing assembly into the transmission case.
Provides instructions for timing and installing the countershaft assemblies with the reduction gear.
Guides the installation of the shifting controls, including the tension spring, ball, and shift bar.
Details the procedure for installing the rear plate onto the transmission front case.
Explains the final steps for installing and setting the shifting controls, including rod end adjustments.
Provides instructions for installing the companion flange or yoke onto the input and output shafts.
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