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Off-Highway Aftertreatment and Emissions Systems - Columbia, SC
Off-Highway Aftertreatment and Emissions Systems - Columbia, SC
Since 2008, the EPA has imposed restrictions requiring all off-highway diesel vehicles to have some type of aftertreatment system to clean the exhaust expelled by diesel engines. Unfortunately for heavy equipment technicians, these systems have high failure rates and rely on the health and functionality of the engine. This makes it challenging to diagnose these failures and find the root cause of it. By the end of this class, you’ll fully understand the interaction between upstream engine issues and issues with the regeneration and SCR systems.
Heavy Equipment Aftertreatment Systems
In this class, you’ll learn about the function, operation, and internal view of the components making up the regeneration system and SCR system. We’ll also go over aftertreatment fuel injectors and their alternative names and teach you all about CAT’s clean emissions module.
See All Topics
Topics Covered:
- Difference between tier levels 1-4F and how they impacted today’s off-highway equipment
- Changes manufacturers made to adhere to these tier levels
- Heavy equipment manufacturers current emissions strategies
- Diagnostic modes on generators and air compressors
- In-depth lesson about common rail fuel systems including pressures they’re capable of and why they’re necessary for today’s emissions packages
- Engine controls that regulate the DOC inlet temperature during regeneration
- How to spot low temperature issues during regeneration
- How to clean DPFs and DOCs and inspect them for replacement when removed
- What diesel exhaust fluid (DEF) is and the importance of verifying concentration with a refractometer
- DEF system operations including pumps, tanks, lines, tank and line heaters, decomp tube, and dosers
- Particulate matter sensor function and operation
- How to address aftertreatment and SCR derates, including what they mean and how certain manufacturers require you to clear them
- Turbocharger and related components (How low boost can cause regeneration issues)
- EGR valve and related components (How EGR function can cause regeneration issues)
- Fuel systems and related components (How fuel-related issues can cause regeneration issues)
- How low power, oil consumption, smoke, and cylinder performance affect aftertreatment
No Fault Codes?
Sometimes a fault code isn't available to help with diagnosing issues with aftertreatment systems. To make diagnosing without a fault code easier, you'll learn about regeneration temperature diagnostics and the cause of regeneration temperature inversions.
Oil Dilution and Regeneration
Our instructors will explain the differences between post-injection and in-cylinder regeneration operations. You'll also learn about oil and fuel dilution issues and byproducts of them.
Injector Programming and Regeneration Issues
You'll learn about the importance of IQA or injector coding when replacing an injector and how it could potentially affect the aftertreatment system.
Hands-on Training
To reinforce the concepts learned in this course, you'll perform hands-on labs with learning aids developed by our training department. We'll also perform a live regeneration to validate the concepts learned during the lecture portion of this course.
Benefits for Heavy Equipment Technicians
You'll sharpen the skills necessary to simplify diagnosing these seemingly complex systems. This knowledge will help you diagnose vehicles all across the board as this training is not specific to any one manufacturer, and we go over most variations you'll find.
Benefits for Shop Owners and Managers
The skills your technicians learn in this class will help them diagnose equipment quickly and efficiently, resulting in less time wasted on incorrect diagnostics and repairs, ultimately leading to less downtime. Your customers will be calling you non-stop when they find out how quickly you can get them back up and running.
COVID-19 Precautions
Until further notice, students attending our in-person training classes at any location will be required to undergo a mandatory non-contact temperature check before entering the classroom. Optional masks will also be provided to students.
Please Note - This class will be held at the NEW Diesel Laptops Training Center in Irmo, SC (map below.)
For those traveling, we have negotiated discounted hotel rates with the closest Comfort Suites. We have also selected several local restaurants that may interest you while you're visiting. Click the link below to learn more.
