WARNING
During regeneration, exhaust gas temperature could reach 800°C [1500°F] and exhaust system surface temperature can exceed 700°C [1300°F], which is hot enough to ignite or melt common materials, and cause severe burn injuries. The exhaust and exhaust components can remain hot after the vehicle stopped moving. To avoid the risk of fire, property damage, burns or other serious personal injury, allow the exhaust system to cool before beginning this procedure or repair and make sure that no combustible materials are located where they are likely to come in contact with hot exhaust or exhaust components.
|
To perform a stationary regeneration, connect INSITE™ electronic service tool and check for active fault codes. If any fault codes are present other than Fault Codes 2639 or 1921, go to Section TF for any fault code troubleshooting before proceeding. Do not perform a stationary regeneration with active fault codes other than Fault Codes 2639 or 1921, unless guided to do so by the fault code troubleshooting.
NOTE: If the stationary regeneration is being performed to recover either the DOC, the DPF, or both after coolant contamination, the DOC does not need to be removed or inspected unless there are active fault codes that require inspection as part of the fault code troubleshooting steps.
NOTE: Unless there are complaints of black smoke during operation and the exhaust stack is black, the DPF does not need to be removed or inspected during this process.
Before performing a stationary regeneration, follow the steps listed below:
- Select an appropriate location to park the vehicle.
- On a surface that will not burn or melt under high temperatures (such as clean concrete or gravel, not grass or asphalt)
- Away from anything that can burn, melt, or explode
- Nothing within 0.6 m [2 ft] of the exhaust outlet
- Nothing that can burn, melt, or explode within 1.5 m [5 ft] (such as gasoline, wood, paper, plastics, fabric, compressed gas containers, hydraulic lines)
- No gas or vapors nearby that could burn, explode, or contribute to a fire (such as LP gas, gasoline vapors, oxygen, nitrous oxide).
Park the truck securely.
- Set the parking brake.
- Place transmission in Park, if provided; otherwise in Neutral.
- Set wheel chocks at the front and rear of at least one tire.
Set up a safe exhaust area.
- If bystanders might enter the area, set up barriers to keep people at least 1.5 m [5 ft] from the exhaust outlet during regeneration.
- When indoors, attach an exhaust discharge pipe rated for at least 800°C [1500°F]
- Keep a fire extinguisher nearby.
Check exhaust system surfaces.
- Confirm that nothing is on or near the exhaust system surfaces (such as tools, rags, grease, or debris).
Prepare for engine speed changes during regeneration.
- Do not operate any PTO-powered devices. Disconnect these devices before starting regeneration.
- Stay clear of the engine compartment.
Begin the stationary regeneration. This can be performed in two ways:
- Vehicles equipped with a stationary regeneration switch in the cab must also have the stationary regeneration switch parameter enabled in the ECM. The stationary regeneration switch can be a stand-alone switch, or can be combined with a diagnostic switch, at the choice of the vehicle manufacturer.
- The INSITE™ electronic service tool can be used to perform regeneration by starting the Aftertreatment Diesel Particulate Filter Regeneration Test.
- In either case, the engine will create enough heat to regenerate the aftertreatment diesel particulate filter. Engine speed will increase and the turbocharger can whistle loudly during the regeneration process. Once the aftertreatment diesel particulate filter is regenerated, the engine will automatically return to normal idle speed.
Monitor the area.
- Make sure that the vehicle and surrounding area are monitored during regeneration. If any unsafe condition occurs, shut off the engine immediately.
To stop a stationary regeneration, engage the clutch, brake, or throttle pedal; or turn off the engine.
Once regeneration is complete, exhaust gas and exhaust surface temperatures will remain elevated for 3 to 5 minutes.
|
|
|