Hydrocarbon Management - New Holland B95C Original Instructions Manual

Hydrocarbon management

NOTICE: Unless the Hydrocarbon (HC) level has reached the most critical level (SCR catalyst full
the unit under load is advantageous for quickly reducing the HC levels.
If the engine operates at low idle speed for a prolonged period of time, hydrocarbons can accumulate in the SCR cat-
alyst. To manage this accumulation, your machine will monitor current conditions and increase idle speed or request
action from the operator in order to increase the temperature inside the SCR catalyst and eliminate the hydrocarbons.
Low Idle Increase Recommended
Display
Low Idle Increase Active
Display
NOTE: This automatic engine idle speed increase is inhibited if any of the conditions are not met or certain features
are active on the machine. For example: operating the hand or foot throttle.
NOTE: The operator is free to interrupt the auto idle increase and operate the machine. The display may change to
the low idle increase recommended
is required.
SCR Catalyst Full
Display
with illumination
NOTE: The operator does not need to stay with the machine during the Hydrocarbon management procedure. Once
the procedure is complete the display message will disappear and the operator may resume machine operation.
NOTE: This procedure may take approximately 1 – 2 h to complete depending on the ambient air temperature.
NOTICE: Do not turn off the engine, drive the machine, or increase the load on the machine to avoid damage to the
catalyst.
7 - MAINTENANCE
Audible alert
3 consecutive beeps
Audible alert
5 consecutive beeps
, if the system determines that additional Hydrocarbon (HC) reduction
Audible alert
Constant audible alarm
The Engine Control Unit (ECU) requires the operator to
increase load on the engine or increase engine idle speed to a
minimum of 1350 RPM.
The Engine Control Unit (ECU) will automatically increase
engine idle speed to 1350 RPM.
The Engine Control Module (ECU) will allow automatic
Hydrocarbon management only if the machine meets the
following requirements for 10 min:
• the FORWARD-NEUTRAL-REVERSE (F-N-R) lever is kept
in the NEUTRAL position
• the park brake is engaged
• the engine idle speed is below 1350 RPM
1. Place the FORWARD-NEUTRAL-REVERSE (F-N-R) lever
in the NEUTRAL position.
2. Engage the park brake.
3. Use the hand throttle and manually increase the engine
speed to 1500 RPM.
7-34
Action
Action
Action
), running