Catalyst (SCR) - Replace
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| Illustration 1 | g06167250 |
| (1) Catalyst (SCR) Access Hatch | |
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| Illustration 2 | g06167251 |
| (2) Catalyst (SCR) Access Hatch | |
Refer to Disassembly and Assembly for details on catalyst replacement.
Note: Disposition and Recycling - Common components of exhaust aftertreatment devices include, but are not limited to, cordierite, silicon carbide, iron zeolite, vanadium, platinum, and palladium. After the devices are used in an engine exhaust flow, they can include some by-products that result from combustion. Follow applicable Federal, State, and local regulations when handling or discarding used aftertreatment devices.
- Remove Catalyst (SCR) hatch cover nuts, bolts, and washers.
- Open or remove hatch cover from the reactor unit.
- Remove gasket assembly from the sealing surface of the hatch cover.
- Use 399-9725 Handle As may aid in catalyst removal.
- Install the SCR catalyst into the reactor housing (reverse of the removal procedure). Verify the correct position of the SCR catalysts.
- Replace all gaskets on the SCR catalyst cover.
- Install SCR cover assembly.
- Replace all bolts.
- Apply final torque to all bolts in a circular pattern. Refer to Specifications, SENR3130, "Torque Specifications" for the proper torque.
- Verify that all bolts are at the proper torque value.
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