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EXHAUST FILTER CLEANING OPERATIONS
When enabled, the exhaust filter system goes through an automatic cleaning process known as regeneration. Under
normal circumstances, regeneration occurs without interruption of unit operation and with minimal operator involve-
ment. In the event there are conditions requiring the operation of the unit with auto exhaust filter cleaning disabled,
the operator may be required to perform procedures to enable or disable the auto exhaust filter cleaning. The operator
may also be required to perform a manual regeneration. The following procedures describe how to perform these
functions.
WARNING
The area above and surrounding the engine during an auto or manual exhaust filter
cleaning should be clear of any people and objects. Exhaust gases and components
can reach temperatures hot enough to burn people, ignite, or melt common materials.
Note:
Always park the machine in a safe location for elevated exhaust temperatures and check for adequate fuel
level before beginning the exhaust filter cleaning process. The cleaning cycle can take an extended period of time
(approximately 45 minutes). Cleaning is complete when the exhaust filter cleaning indicator remains off.
DISABLE AUTOMATIC (AUTO) EXHAUST FILTER CLEANING
The auto exhaust filter cleaning feature should always be enabled unless doing so would cause an unsafe working
environment. In the event that an unsafe working environment would occur, use the following procedure to disable
the auto exhaust filter cleaning feature:
1. Open the control door and locate the switch labeled “Auto Exhaust Filter Cleaning.”
2. Move the toggle switch into the “Disable” position.
3. Toggle to the “DPF Status” screen on the Magnum Digital Controller and verify the “Disabled Regener-
ation” indicator appears above the words “DPF Inhib”. For information regarding the “DPF Status” screen
and indicators, refer to
“Diesel Exhaust Filter Monitoring” on page 21
.
Note:
Disabling auto mode is not recommended for any situation unless it is safety related or if the fuel tank lacks
the required fuel to complete the cleaning process.
FORCE A MANUAL EXHAUST FILTER CLEANING
If running the unit with the auto exhaust filter cleaning function disabled, the “DPF Status” screen may display a red
alarm, prompting the operator to force a manual exhaust filter cleaning. Use the following procedure to force a manual
exhaust filter cleaning feature:
1. Open the control door and locate the switch labeled “Auto Exhaust Filter Cleaning.”
2. Move and hold the toggle switch into the “Enable” position for 5 seconds.
3. Toggle to the “DPF Status” screen on the Magnum Digital Controller and verify the “Regeneration”
indicator appears above the words “DPF Lamp”. For information regarding the “DPF Status” screen and
indicators, refer to
“Diesel Exhaust Filter Monitoring” on page 21
.
ENABLE EXHAUST FILTER CLEANING
If the environment no longer requires the function to be disabled and there are no alarms present on the “DPF Status”
screen, the auto exhaust filter cleaning function should be enabled. Use the following procedure to enable the auto
exhaust filter cleaning feature:
1. Open the control door and locate the switch labeled “Auto Exhaust Filter Cleaning.”
2. Move the toggle switch into the “Auto” position.
3. Toggle to the “DPF Status” screen on the Magnum Digital Controller and verify the “Regeneration”
indicator appears above the words “DPF Lamp”. For information regarding the “DPF Status” screen and
indicators, refer to
“Diesel Exhaust Filter Monitoring” on page 21
.
