GASKET 4194651 - Caterpillar

Regeneration System Warning Indicators
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Indicator will illuminate when DPF soot load is greater than 90%Regeneration should be performed as soon as possible. Machine operation may not allow an automatic regeneration to take place. A manual regeneration should be performed as soon as possible.Indicator will turn off once DPF regeneration has started.Note: In some situations, the DPF indicator may stay illuminated when the soot load is below 90%. The illuminated DPF indicator indicates that a complete regeneration has not been performed. A complete regeneration is when the soot level is reduced to 0%. If the DPF indicator stays illuminated, perform a regeneration without interruption until the soot level is reduced to 0%. A complete regeneration will reset the DPF indicator.
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If the amount of soot collected in the DPF has reached a level that a regeneration is required, the DPF indicator and an action lamp will illuminate. Stop the machine and apply the parking brake. With the engine at low idle, initiate a manual regeneration. Engine power will be slightly derated if the machine continues to operate.
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After a certain period, if no action is taken to regenerate an action alarm will activate. After 5 minutes with the action alarm active, the engine will automatically be taken to low idle. A manual regeneration is required at this time. A complete regeneration will unlock the forced low idle speed, followed by cycling the engine start switch key. Once the engine has been in the forced low idle strategy for approximately 10 minutes, regeneration will be locked out. At this time, a regeneration can only be done through Caterpillar Electronic Technician (ET), by an authorized Cat dealer.After a certain amount of time, engine will automatically shut down. Engine can be restarted but will only run for 30 seconds before shutting down again. Finally, if the engine is still allowed to run through multiple forced engine shutdowns, all types of regenerations are locked out. The DPF must be replaced. Consult your local Cat dealer if the DPF needs to be replaced.Key Off Regeneration (If Equipped)
The use of the Key Off Regeneration feature and the Delayed Engine Shutdown feature allows the engine to run for a time when the engine start switch is turned to the OFF position. The key may be removed.Note: There may be regulations that define the requirements for the operator and/or support personnel to be present when the engine is running.
Leaving the machine unattended when the engine is running may result in personal injury or death. Before leaving the machine operator station, neutralize the travel controls, lower the work tools to the ground and deactivate all work tools, and place the lever for the hydraulic lockout control in the LOCKED position.
Refer to Operation and Maintenance Manual, "Parking" for more information.Note: Leaving the machine unattended when the engine is running may also result in property damage in the event of a malfunction.Key off regeneration allows for regeneration when the engine start switch key has been removed. To begin a key