Caterpillar 730C Articulated Truck Service Repair Manual

Caterpillar 730C Articulated Truck Service Repair Manual
Cat Clean Emissions Module (CEM)
The Cat CEM is an exhaust aftertreatment package consisting of a Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR) catalyst, using a urea water solution (UWS), known as Diesel Exhaust Fluid (DEF), and control systems. Caterpillar 730c
The CEM reduces both particulate and NOx emission using passive and active regeneration, dosing, burner and dosing/burner combinations during normal engine operation. All components are isolation mounted on a rigid supporting cradle for long service life in the most severe applications.

Caterpillar 730C Articulated Truck Service Repair Manual

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Cat NOx Reduction System (NRS)
The Cat NOx Reduction System (NRS) captures and cools a small quantity of exhaust gas, then routes it into the combustion chamber
where it drives down combustion temperatures and reduces NOx emissions.

Fuel Delivery
Mechanically actuated Electronic Unit Injection (MEUI-C) multiple injection fuel delivery involves a high degree of precision.
Precisely shaping the combustion cycle lowers combustion chamber temperatures, generating fewer emissions and optimizing
fuel combustion. This translates into more work output for your fuel cost.

Diesel Particulate Filter Regeneration
Regeneration is the removal of soot from the Diesel Particulate Filter (DPF). The Aftertreatment Regeneration Device (ARD) utilizes
the Cat Regeneration System (CRS) to efficiently and automatically regenerate the DPF.
The DPF traps both particulates and ash; the ash is removed at regular service intervals.

Modes of Regeneration
When set to automatic, regeneration will occur without any interaction from the operator. The three modes of regeneration shown
below allow the articulated truck to adapt to specific site conditions in the most efficient manner.
Automatic: “On-the-go” regeneration is initiated when the engine control module determines conditions are acceptable.
The articulated truck is not required to stop working.

Caterpillar 730C Articulated Truck Service Repair Manual