This International RXT hydraulic ABS service manual is the 2006 Full Power Hydraulic ABS Brake System section, publication S04050, describing operation, pressure bleeding and component replacement on International RXT and related models. It details the master cylinder, Hydraulic Compact Unit and Electronic Control Unit.
Official document details
| Brand | International Trucks |
|---|---|
| Model coverage | 3200, 4100, 4200, 4300, 4400, RXT |
| Unit codes | 04085, 04JNG |
| System / Group | Full Power Hydraulic ABS brake system |
| Publication no. | S04050 |
| Year / Revision | 12/20/2006 |
| Pages | 141 |
| File size | 1.9 MB |
| Format / Language | PDF / English |
International RXT hydraulic ABS table of contents
- Safety precautions and asbestos warnings
- General description of the brake system
- Service brakes and Electronic Brakeforce Distribution
- Anti-lock Braking System (ABS) operation
- Automatic Traction Control (ATC), optional
- Warning indicators and system layout
- System components: master cylinder and reservoir
- Hydraulic Compact Unit (HCU) and accumulators
- Electronic Control Unit (ECU) and wheel speed sensors
- Pressure bleeding procedures
- Diagnostics and troubleshooting
Applicable truck models covered
The manual applies to International 3200, 4100, 4200, 4300 and 4400 chassis and the RXT built with unit codes 04085 and 04JNG. It calls for new DOT 3 or DOT 4 brake fluid and the EZ-Tech service tool with TOOLBOX diagnostic software to program the ECU and clear fault codes. See the manufacturer at International Trucks official website.
Who needs the International RXT hydraulic ABS
Brake technicians working on RXT hydraulic ABS systems need this manual because full power brakes require pressure bleeding, correct accumulator pressures above 1550 psi and factory-trained procedures that differ from conventional air or vacuum brakes.
Full power brakes store energy in accumulators, so the manual is emphatic that pressure bleeding is required and that the reservoir be filled only to the MAX line with fresh fluid to avoid a spill when the system is depressurized. It explains the warning indicators, including the solid and flashing lamps that signal low accumulator pressure below 1550 psi, and the engine limiting to 25 mph that follows a full system failure. Component chapters show how to reconnect the master cylinder reservoir with roll pins, how to service the HCU reservoir without contamination, and how to program a replacement ECU to the vehicle VIN and clear inactive fault codes afterward.
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