This is the IC Bus DPF SCR service manual, publication 0000002484 Revision 1, for the Exhaust Aftertreatment System with DPF and SCR on BE, CE, HC and RE buses. It covers theory of operation, DPF cleaning, DEF service and component replacement.
Official document details
| Brand | International / IC Bus (Navistar) |
| Model coverage | BE Bus, CE Bus, HC Bus, RE Bus |
| System / Group | IC Bus / BE & CE Series / DPF & SCR |
| Publication no. | 0000002484 |
| Year / Revision | Revision 1, January 2014 |
| Pages | 69 |
| File size | 4.5 MB |
| Format | |
| Language | English |
Inside the IC Bus DPF SCR
- Theory of operation (MaxxForce DT/7, Cummins ISB6.7)
- DPF cleaning and DOC inspection
- Decomposition reactor tube cleaning
- DEF dosing valve cleaning and tank draining
- Doser Control Unit (DCU) removal and installation
- Component replacement and torque chart
Published by Navistar in January 2014 as Revision 1, the manual explains the theory of operation for MaxxForce DT and 7 and Cummins ISB6.7 engines, describing how temperature, NOx and ammonia sensors let the system calculate the correct dosing rate. General service information covers filter cleaning, gaskets and fasteners, indexing, decomposition reactor tube cleaning and dosing-valve cleaning, with a firm caution to use only a brass brush and distilled water on the valve tip and never to submerge it. Component replacement is split by engine and by bus, covering pressure tubes and sensors, temperature sensors and the doser control units for CE, BE, HC and RE applications. Removal and installation of the filter and the diesel exhaust fluid tank are detailed for both engine families, and a torque chart with an acronym list closes the book.
Applicable truck models
Coverage spans BE, CE, HC and RE buses with MaxxForce DT or 7 and Cummins ISB6.7 engines, using NOx and ammonia (NH3) sensors and an Aftertreatment Control Module. The DEF dosing valve tip must be cleaned only with a brass brush and distilled water. Verify coverage against your VIN and build sheet on the International Trucks website.
Who needs the IC Bus DPF SCR
School and commercial bus technicians use this manual to service the diesel particulate filter, clean the DEF dosing valve, and replace temperature sensors, pressure tubes and doser control units without damaging aftertreatment components.
The complete 69-page PDF is available in the DiagTechPro manuals library; a free account is required to download.
Applies to these truck models
This is the manufacturer document shared across 2 model families. It applies to:
- International Trucks DPF & SCR
- International Trucks HC Series
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