Emission Control System (ECS)

c.Diesel Oxidation Catalyst (DOC)

A diesel oxidation catalyst (DOC) is a flow through device that consists of a canister containing a honeycomb-like structure or substrate. The substrate has a large surface area that is coated with an active catalyst layer. This layer contains a small, well dispersed amount of precious metals. As the exhaust gases traverse the catalyst, carbon monoxide, gaseous hydrocarbons and liquid hydrocarbon particles (unburned fuel and oil) are oxidized, thereby reducing harmful emissions.

It is a part of the exhaust system and it is fitted next to the turbocharger in this system.

d.Selective Catalystic Reduction (SCR)

A selective catalytic reduction is another flow through device which consist of honeycomb-like structured substrate. The substrate is precious metal which acts as an active catalyst layer. As the exhaust gases passes through the catalyst, NOx reduced to N2 and water, thereby reducing harmful emissions.

It is a part of exhaust system and fitted next to DOC as whole assembly.

NOTE: Avoid long duration idling than the recommended idling time. Avoid frequent cold starts.

Periodic inspection and tightening of mounting hardware is typically appropriate.

The DOC and SCR may be damaged by excessive fuel or oil consumption or a poorly maintained engine.

Always use recommended fuel and lubricating oil for your engine.

Exhaust system operates at high temperature. Wait until the temperature cools down to carry out any maintenance work in the exhaust system or nearby area.

Never operate the tractor without the DOC and SCR. Never operate the tractor with improperly fitted or physically damaged DOC and SCR.

Never let the water, Oil, Fuel, WD40 (cleaning agent) and other highly in-flammable agent into the exhaust system which may damage the exhaust system.

Service your vehicle periodically as recommended.