Exhaust Filter System Overview

APY08236-UN-31DEC18

A - Exhaust Filter Disable Cleaning Switch

Your machine is equipped with an emission compliant engine, which cleans and filters the engine exhaust. Please read the Exhaust Filter Cleaning sections to understand when and where operator interaction is required.

IMPORTANT: Soot builds up during times when engine exhaust gas temperature is lower (lower engine speed, lower engine load). Performing extended operations at either low engine speed (below 1500 rpm) or low engine load (such as backhoe work), could result in needing a parked exhaust cleaning. Periodically monitor the machine display during these operations to determine if parked exhaust cleaning is required.

To avoid unnecessary buildup of diesel particulates or soot in the exhaust filter system:

• Utilize AUTO exhaust filter cleaning mode.
• Avoid unnecessary idling.
• Use proper engine oil.
• Use only ultra low sulfur fuel.

Under normal machine operation, the system is in automatic mode.

Use exhaust filter disable cleaning switch (A) to disable exhaust filter cleaning mode.

IMPORTANT: When machine use is not suited for higher temperatures created by exhaust filter cleaning, use the disable switch (A). Be sure to deactivate the disable switch as soon as possible to avoid unnecessary soot buildup in exhaust filter.

Remember to select disable switch (A) when temporarily connected to an indoor ducted exhaust system during vehicle diagnostic and repair activities.

Exhaust Filter Indicators

PY46073-UN-25SEP17

Exhaust Filter Indicators

High Exhaust Temperature Indicator (B) - Indicates temperature in the exhaust filter high enough to conduct cleaning.

Operator Information

1. 
   H94828-UN-13OCT09

   Exhaust Filter Indicator

   Description	Recommended Procedure
   High level of soot at exhaust filter, the exhaust filter requires cleaning. NOTE: If no cleaning is carried out, engine power is reduced .	Activate automatic filter cleaning; see Automatic Exhaust Filter Cleaning.

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2. 
   LX1049779-UN-22JUL10

   High Exhaust Temperature Indicator

   Description	Recommended Procedure
   Exhaust filter cleaning is taking place. Exhaust temperatures are high.	Do not interrupt automatic exhaust filter cleaning unless absolutely necessary; see Automatic Exhaust Filter Cleaning.

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