19258-ZY3-010 Honda TUBE, WATER INLET (Honda Code 8763674).

Regeneration Indicators
Regeneration Active - When illuminated, this indicator shows that the system is active. This indicator shows that elevated emission temperatures are possible. This indicator will turn off when regeneration is complete.
DPF - This indicator will illuminate to show that regeneration is required. This indicator will illuminate when "Time to Regen" is less than a pre-determined amount of time.
Regeneration Disabled - This indicator will illuminate to show that regeneration has been disabled.Regeneration Switch
Force Regeneration - Press in the top switch for 2 seconds to begin regeneration.
Disable Regeneration - Press in the bottom switch for 2 seconds to disable regeneration.Note: If equipped with a rocker style switch, the MIDDLE position of the regeneration switch is the default position for automatic regeneration.Note: If the engine start switch key is cycled or the "Force Regeneration" switch is pressed for longer than 2 seconds the system will no longer be disabled. When the "Force Regeneration" switch is pressed and "Time to Regen" is less than 8 hours, regeneration will begin if the machine is at low idle and is parked.Note: If the engine start switch key is cycled while the regeneration system is disabled via the "Disable Regeneration" switch, press and hold the "Disable Regeneration" switch for 2 seconds to reinitiate.Modes of Regeneration
Automatic: The Electronic Control Module (ECM) uses multiple inputs from the engine and the machine to determine the best time to perform automatic regeneration. Automatic regenerations can take place throughout the operating cycle of the engine. The regeneration active indicator will be illuminated when regeneration is being performed. Interruptions of the regeneration are acceptable. If regeneration is in progress and needs to be stopped, it is permissible to press the "Disable Regeneration" switch.Note: Automatic adjustments of engine speed may be noticed during regenerations. If regeneration is taking place and the engine is taken to low idle, the engine speed may remain elevated to maintain the regeneration.Note: If the machine returns to work while automatic regeneration is active, the regeneration may be stopped. The ECM will continue to monitor inputs to determine the best time to restart the regeneration.Manual: Manual regeneration is initiated by pressing the "Force Regeneration" switch. Manual regeneration will only be allowed if the "Time to Regen" is less than 8 hours. If the "Force Regeneration" switch is pressed before "Time to Regen" is less than 8 hours, then “Regen not Required” will be displayed. The machine must be stationary, the parking brake must be applied, and the engine must be at low idle to perform manual regeneration.Disabled: When the regeneration system is in disabled mode, automatic regenerations will not be performed. The DPF indicator will illuminate if manual regeneration is required. The "Time to Regen" displayed on the performance screen will indicate the amount of time until the next regeneration will be required. However, the DPF indicator may illuminate with time remaining on the display. When the DPF indicator illuminates, the operator must perform manual regeneration.Regeneration Triggers
Regeneration may be required for the following reasons:Soot: The DPF will collect soot produced by the engine. Automatic regeneration will become active to reduce soot level.Start-Up Regeneration: Start-up regeneration is initiated by the ECM after a cold engine start. This regeneration is performed to heat the system to a required temperature for Diesel Exhaust Fluid (DEF) dosing to begin.SCR Maintenance:Regeneration is performed to maintain the SCR system.ARD Maintenance: Regeneration is performed to maintain the ARD system.Regeneration System Warning Indicators
Illustration 1 g02117258The DPF Indicator will illuminate solid when regeneration is required. Regeneration should be performed as soon as possible.Note: In some situations, the DPF indicator may stay illuminated after regeneration ends. The illuminated DPF indicator indicates that complete regeneration has not been performed. A complete regeneration is when the soot has been depleted or all the criteria for one of the other regeneration types have been met. If the DPF indicator stays illuminated, perform regeneration without interruption. The DPF indicator will shut off when regeneration is complete.If the soot load is above a threshold or "Time to Regen" is 0 hours, then regeneration is required. The DPF indicator will illuminate and flash slowly. Engine power will be slightly derated. If the machine continues to operate without regeneration, derate will eventually reach 100%. Stop the machine and apply the parking brake. With the engine at low idle, initiate manual regeneration.
Illustration 2 g03679876Once the amount of soot collected in the DPF has reached a threshold or "Time to Regen" has been at 0 hours for a pre-determined time, the DPF indicator will illuminate and flash at a fast rate. A red stop lamp will illuminate solid.10 minutes after the illumination of the DPF indicator and red stop lamp the engine will shut down. The engine can be restarted by cycling the engine start switch key. The engine will return to the previous derate state before shutdown.Once the amount of soot collected reaches a threshold level or 6.4 hours of run time has passed since the red stop lamp was illuminated without successful regeneration, the engine will have a 100% derate.Once the amount of soot collected reaches a critical threshold level, the regeneration will be locked out. At this time, regeneration can only be done through Cat Electronic Technician (ET), by an authorized Cat dealer. The engine may be restarted, but will only run for 3 minutes before shutting down again.A fault code will be active for any DPF system-related issue. Follow the troubleshooting guide to rectify the issue.If the DPF loses function, or is tampered with in any way, the check engine lamp, and an amber action (if equipped) will illuminate. A fault code will also annunciate. The lamps and fault code will remain active until the problem is rectified.