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M0087475-06
The battery disconnect switch and the engine start
switch perform different functions. The entire
electrical system is disabled when you turn the
battery disconnect switch to the OFF position. The
battery remains connected to the electrical system
when you turn the engine start switch to the OFF
position.
Turn the battery disconnect switch to the OFF
position and remove the key when you service the
electrical system or any other engine components.
Turn the battery disconnect switch to the OFF
position and remove the disconnect switch key after
you operate the engine. This will prevent the battery
from being discharged. The following problems can
cause battery discharge:
• short circuits
• current draw via some components
• vandalism
Selective Catalytic Reduction
Warning System
The selective catalytic reduction (SCR) system is a
system used to reduce NOx emissions from the
engine. Diesel exhaust fluid (DEF) is pumped from
the DEF tank and is sprayed into the exhaust stream.
The DEF reacts with the SCR catalyst to reduce NOx
and leaves a nitrogen and water vapor.
The engine and emissions control system shall be
operated, used, and maintained in accordance with
the instructions provided to the end user to maintain
the emissions performance of the engine within the
requirements applicable to the engine's category. No
deliberate tampering with or misuse of the engine
emissions control system should take place. In
particular regarding deactivating or not maintaining
the SCR system.
NOTICE
Stopping the engine immediately after the engine has
been working under load can result in overheating of
SCR components.
Refer to the Operation and Maintenance Manual,
"Engine Stopping" procedure to allow the engine to
cool. Refer to the Operation and Maintenance Man-
ual, "Engine Stopping" procedure to prevent exces-
sive temperatures in the turbocharger housing and
the DEF injector.
Selective Catalytic Reduction Warning System
Allow at least 2 minutes after shutting down the en-
gine before you turn the battery disconnect switch to
OFF. Disconnecting the battery power too soon will
prevent purging of the DEF lines after the engine is
shut down.
Definitions
Observe the following definitions.
Self-correct – Fault condition no longer exists. An
active fault code will no longer be active.
Notification – Action taken by the system to alert the
operator of pending Inducement.
Inducement – Engine derates, vehicle speed limits,
or other actions intended to prompt the operator to
repair or maintain the emission control system.
Inducement Categories – The Inducements are
separated into categories. DEF Levels have
i08769080
inducement fault codes separate from the other
inducement categories. DEF level inducements are
based on the DEF level, the other inducement
categories are based on escalating time. The
escalating time inducements will always have an
associated fault code along with the inducement fault
code. The associated fault is the root cause. The
escalating time inducement fault code is just an
indicator of what level of inducement the engine is in.
The escalating time inducement fault code also
indicates how much time remains until the next level
of inducement. There are three inducement
categories (two for European Union and China) that
will trigger an escalating time inducement fault code.
Note: The associated codes for each of the
escalating time categories can be found in
Troubleshooting under SCR Warning System
Problem.
First occurrence – When an escalating time
inducement fault code becomes active for the first
time.
Repeat occurrence – When any escalating time
inducement fault code becomes active again within
40 hours of the first occurrence. Engine must run for
40 hours without tripping any escalating time
inducement fault before returning get back to first
occurrence times.
Safe Harbor Mode (Worldwide) – Safe Harbor
Mode is a 20 minute engine run time period. During
the Safe Harbor Mode the engine can be operated
with full power after reaching a level 3 inducement.
Once in level 3 inducement, the operator can perform
a key cycle and the engine will enter Safe Harbor
Mode. Safe Harbor Mode can only be implemented
once. Safe Harbor Mode is not allowed for DEF level
inducements with Worldwide configuration.
Operation Section
NOTICE
47
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