Emission Control System (ECS)

Diesel Oxidation Catalyst (DOC)

A Diesel Oxidation Catalyst (DOC) is an emission control device which uses a chemical process in order to break down pollutants from diesel engines in the exhaust stream, turning them into less harmful components. It is a part of the exhaust system which can be found fitted next to the turbocharger.

Under-Hood Muffler (UHM)

An Under-Hood Muffler (UHM) is a noise control device which reduces exhaust noise by absorption. It is a part of the exhaust system which can be found fitted next to the DOC.

NOTE:

Avoid running the engine at low idle speed. Avoid frequent cold starts.

Periodic inspection and tightening of mounting hardware is typically appropriate.

The DOC 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 UHM.

Never operate the tractor with improperly fitted or physically damaged DOC and UHM

Never let the water into the exhaust system which may damage the exhaust system.

Service your vehicle periodically as recommended.