Perkins 1204F-E44TA Operation And Maintenance Manual page 49

SEBU9063-07
Table 10
-
Normal operation
Inducement Trigger Above 20 percent
Inducement None
Notification None
Battery Disconnect Switch
• Diesel Oxidation Catalyst (DOC) and Selective
Catalytic Reduction (SCR)
• Diesel Oxidation Catalyst (DOC) Diesel
Particulate Filter (DPF) and Selective Catalytic
Reduction (SCR)
• Diesel Exhaust Fluid (DEF)
The battery disconnect switch is designed to isolate
the engine and application from battery power.
In some applications an auxiliary electrical circuit
may have been included that will allow the DEF
system to cool down and purge even if the battery
disconnect switch is in the off position. Once the DEF
system cools down and the purge procedures are
complete, this auxiliary circuit (if installed) will open.
This circuit then isolates the battery from the rest of
the electrical system.
NOTICE
Perkins strongly recommend the installation of the
wait to disconnect lamp on all applications.
The wait to disconnect lamp will be illuminated during
engine operation, and only when extinguished should
the battery disconnect switch be turned off.
For a DOC and SCR aftertreatment system, allow 10
minutes after the engine has stopped before you turn
the battery disconnect switch off.
For a DOC, DPF and SCR aftertreatment system
allow 15 minutes after the engine has stopped before
you turn the battery off.
If digital communication is lost, the wait to disconnect
lamp will operate for minutes 15 minutes on both
aftertreatment systems after the engine has stopped.
World-Wide DEF Level Option 2
Initial indication Level 1
Below 20 percent Below 14 percent
None None
Low-level lamp Low-level lamp
illuminated illuminated
Emission malfunction
lamp on solid
Disconnecting the battery power too soon may
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prevent cooling of the DEF system and purging of the
(DEF) lines after the engine is shut down.
Not allowing the DEF system to be cooled can
damage the system. Not allowing the DEF purge to
be performed can damage the DEF system.
For more information on DEF cooling and purging
times, refer to this Operation and Maintenance
Manual, "Product Description" and see title Cooling
and Purging of the DEF Lines.
Gauges and Indicators
Your engine may not have the same gauges or all of
the gauges that are described. For more information
about the gauge package, see the OEM information.
Gauges provide indications of engine performance.
Ensure that the gauges are in good working order.
Determine the normal operating range by observing
the gauges over a period of time.
Noticeable changes in gauge readings indicate
potential gauge or engine problems. Problems may
also be indicated by gauge readings that change
even if the readings are within specifications.
Determine and correct the cause of any significant
change in the readings. Consult your Perkins
distributor for assistance.
Some engine applications are equipped with
Indicator Lamps. Indicator lamps can be used as a
diagnostic aid. There are two lamps. One lamp has
an orange lens and the other lamp has a red lens.
These indicator lamps can be used in two ways:
• The indicator lamps can be used to identify the
Battery Disconnect Switch
Level 2
8 Percent reading
None
Low-level lamp
illuminated
Emission malfunction
lamp flashing
current operational status of the engine. The
indicator lamps can also indicate that the engine
has a fault. This system is automatically operated
via the ignition switch.
49
Operation Section
Level 3
3.5 Percent reading
Shut down or idle
only
Low-level lamp
illuminated
Emission malfunction
lamp flashing
Stop lamp on solid
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