SK3000 Operator’s Manual Maintenance - 77
Recommended Lubricants
Exhaust Cleaning
This engine has a Diesel Particulate Filter (DPF) that separates soot caused by the combustion of diesel
fuel from the exhaust gases exiting the engine. The DPF must be cleaned as the soot level increases.
Automatic exhaust cleaning happens during normal machine operation when sensors in the
engine determine the need. During an engine exhaust cleaning cycle, engine exhaust can reach
high temperatures. When this happens, the high exhaust temperature icon will light.
If the jobsite is in an area where high exhaust temperature might cause a problem, disable exhaust
cleaning for the duration of the job and return to automatic cleaning when the job is finished. The
exhaust cleaning disabled icon will light and remain on until the system is returned to automatic
cleaning mode.
The exhaust cleaning icon will light when the system is disabled and exhaust cleaning cycle is
needed.
• The icon will light when an automatic cleaning is needed. If the area will allow it, return the machine
to automatic cleaning mode and let it run automatically.
• A manual exhaust cleaning cycle is required after automatic exhaust cleaning has been disabled
multiple times. If manual cleaning is not done when indicated, the engine will derate.
• Ash buildup in DPF will have adverse effects on engine performance. The soot filter must be serviced
every 3000 hours of operation or more often if high-ash oil and/or fuel is used. Contact your Yanmar®
engine distributor for this service.
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