Ergon Crafco SUPER SHOT 125, Parts Manual

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Super Shot 125 DC 70CFM EU Part Manual
Chapter 8 Troubleshooting
©2022 by Crafco, Inc. All Rights Reserved
………………………………………………………...Troubleshooting (48300N) 8-36
8.5 DPF and Regen Modes
This engine is equipped with an emissions control system that includes a “Diesel Particulate Filter”
(DPF). This filter traps large soot particles during normal operation of the engine. Over time, the filter
accumulates enough soot that it must be cleaned by running a “Regeneration” cycle (REGEN). This
cycle runs the engine at very high exhaust temps to burn off the soot thereby cleaning the DPF.
There are 2 basic types of REGEN: Auto and Manual.
Auto REGEN: This mode runs automatically during normal use of the engine. There are no
restrictions on engine power output or use during these cycles. When this cycle is active, a message
will be displayed on the engine controller screen. This cycle can be interrupted such as engine shut
down without issue
– it will simply resume the next time the engine is up to temp if the engine
computer (ECU) determines Auto REGEN is still required to bring soot levels down to normal levels.
No user input is required to initiate Auto REGEN nor during Auto REGEN active mode. In normal
use, Auto REGEN should be able to keep the DPF clean and not require the more aggressive Manual
REGEN mode as described below.
Manual REGEN: This mode is required when the soot levels exceed the level that Auto REGEN can
adequately clean from the DPF. When the engine computer (ECU) determine that this mode is
required, a message will be displayed on the engi
ne controller screen “Regen Required”. This mode
requires user input and will prohibit air compressor (if equipped) use while Manual REGEN is active.
This cycle should not be interrupted such as engine shut down, it will take approximately 30 minutes
to complete.
1.
When “Regen Required” is displayed on the engine controller, use the arrow buttons
to scroll to the REGEN menu. Sc
roll down to the “Manual Regen” option. The engine
will throttle down to 800 RPM.
2. The engine computer will verify that conditions required for Manual REGEN are
present (engine coolant temp > 140F, and engine has been running >15 minutes). If
these conditions have not been met, a message will appear on the engine controller
screen “Can’t Regen”. If these conditions have been met, a message will appear on
the engine controller screen “Regen Now?”.
3.
Select “Yes”. Failure to select “Yes” or selecting “No” will cause the Manual REGEN
mode to exit and return to previous engine RPM. “Regen Required” would appear on
the screen again.
4.
After selecting “YES” for “Regen Now?”, the engine will gradually increase speed until
the Manual REGEN speed is reached.
5.
While Manual REGEN is active, a message “Manual Regen” and “Comp Disabled”
will alternately appear on the engine controller screen. The machine may be used for
heating, mixing and pumping material while Manual REGEN is active (30 minutes to
complete). Only the air compressor (if equipped) is prohibited (locked out) during
Manual REGEN.
6. When Manual REGEN is complete, the engine will throttle back down to 800 RPM for
a few seconds then return to previous engine speed.