Catalyst (SCR) - Clean/Inspect
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| Illustration 1 | g03716823 |
| (1) Catalyst (SCR) Access Hatch | |
- Gaskets require replacement after a hatch removal.
- Inspect all surface welds for integrity at maintenance schedules.
- Ensure that the CEM mounting feet remain free to float with thermal expansion - This action can greatly reduce the likelihood of thermal stress damage.
- Inspect outer surfaces for warping or other deformities caused by temperature.
- Optional insulation blankets are available for the retrofit emissions reactor. The blanket aids in reaching and maintaining heat requirements when operated in extreme temperatures.
- Inspect thermal blankets / insulation at maintenance intervals.
- Inspect for deterioration, fraying, or fire hazards,
Caterpillar Information System:
SCR Retrofit Aftertreatment Catalyst (DOC) - Replace
SCR Retrofit Aftertreatment Catalyst (DOC) - Clean/Inspect
SCR Retrofit Aftertreatment Fluid Recommendations
New Cylinder Head Available for 3512E Petroleum Well Service Engines {1100, 7555} New Cylinder Head Available for 3512E Petroleum Well Service Engines {1100, 7555}
Improved Venturi Tubes Are Now Used on Certain C27 and C32 Commercial Engines {1071} Improved Venturi Tubes Are Now Used on Certain C27 and C32 Commercial Engines {1071}
3500 and 3500B Engines Engine Operation
G3500H Generator Set Engine Engine Monitoring System
3500E EPA Tier 4 Final and IMO-II/III Switchable Marine Engines Crankshaft Position for Fuel Injector Adjustment and Valve Lash Setting
SCR Retrofit Aftertreatment Before Starting Engine
3500C Marine Engines Engine Operation
New High-Pressure Fuel Pumps Are Now Used on Certain C175 Engines {125H} New High-Pressure Fuel Pumps Are Now Used on Certain C175 Engines {125H}
M0077752: Periodic Inspection and Maintenance required on 4C-9832 Engine Rollover Stand {1154} M0077752: Periodic Inspection and Maintenance required on 4C-9832 Engine Rollover Stand {1154}
3512B Generator Set Engines with Dynamic Gas Blending Event Codes
Marine Selective Catalytic Reduction (SCR) Retrofit Aftertreatment Diesel Exhaust Fluid Pump - Replace
A New Fuel Return Lines Are Used On Certain C18 Marine Engines {1274} A New Fuel Return Lines Are Used On Certain C18 Marine Engines {1274}
323F SA Excavator and 323F MHPU Machine Systems Cylinder Drift - Check - Empty Bucket
G3500H 50Hz Generator Sets Engine Air Cleaner Element - Replace
New Software Is Now Used For Certain 3516C Series Engines {1920} New Software Is Now Used For Certain 3516C Series Engines {1920}
A New Closed Crankcase Ventilation Drain Hose and Check Valve Are Now Used on Certain C18 Marine Separate Circuit Aftercooler Engines {1317} A New Closed Crankcase Ventilation Drain Hose and Check Valve Are Now Used on Certain C18 Marine Separate Circuit Aftercooler Engines {1317}
G3500H 60Hz Generator Sets Jacket Water Heater - Check
3500 Industrial and Generator Set Engines Engine Operation
G3516 TA Engine Electronic Service Tools
Installing Coolant Tubes and Clamps on Certain C175-16 Locomotive Engines {1307, 1380} Installing Coolant Tubes and Clamps on Certain C175-16 Locomotive Engines {1307, 1380}
SCR Retrofit Aftertreatment Exhaust Inlet Nitrogen Oxide Sensor - Inspect/Replace