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Cummins - DAILY & MONTHLY INSPECITON

The following lists all common Daily and Monthly Inspections that should be performed on Cummins Engines and DPF/SCR Systems.

For Pre-2010 engines, discard all maintenance items relating to the SCR System  (I.E. SCR and DEF items). 

DAILY


DAILY
   INSPECTIONS

ENGINE INSPECTIONS:

  • Engine Oil Level

  • Coolant Level

  • Diesel Exhaust Fluid Level

  • Exhaust Leaks

  • Turbocharger Air Intake, CAC, & Boost Side of CAC

  • Crankcase Breather Tubing

  • Drive Belts (cracks? tears?)


 

DPF/SCR INSPECTIONS:

  • DEF Fluid Level

  • Exhaust Leaks or Damage to Exhaust System or Mounting Hardware

  • DEF Fluid Tank Breather Tubing free and clear


 

MONTHLY


MONTHLY
   INSPECTIONS

ENGINE INSPECTIONS:

  • Engine Air Filter Indictor

  • Fuel Water Separator (drain)

  • Radiator Cap (leaking? cooling problems?)

  • Belt Tensioner

  • Charge Air Cooler and Tubing, signs of wetness from Oil Entry from CCV System or Turbo Oil Consumption

  • Coolant Quality and Level

  • Air Tanks (Drain Water - Inspect for high Oil Blow-by exiting the Purge Valve)

  • Diesel Exhaust Fluid Contamination

  • Turbocharger Air Intake, CAC, & Boost Side of CAC

  • Crankcase Breather Tubing

  • Engine Mounts & Mounting Bolts (Cracks? Loose?)

  • Wiring Harnesses and all Tubing (secured properly?)


 

DPF/SCR INSPECTIONS:

  • DEF Fluid Contamination

  • Excessive DPF Active REGENs

  • DEF Fluid Crystallization build up near the DEF Nozzle or SCR Catalyst

  • Diesel Fuel Leaks at the DPF Fuel Injector (where applies)

  • Wiring Harness (secured away from HOT SURFACES?)


 

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