Perkins 1206E-E70TTA Operation And Maintenance Manual page 93

SEBU8601-04
ARD Spark Plug - Clean/
Inspect/Replace
• ARD Aftertreatment Regeneration Device
NOTICE
If the engine is running, or the keyswitch is in the ON
position the ARD spark plug will continue to fire. Turn
the keyswitch to the OFF position before servicing
the ARD spark plug.
Illustration 46
1. Ensure that the power is in the "OFF" position and
that the engine was stopped. Remove any dirt or
debris from the area around the spark plug.
Remove wire harness (2) from spark plug (1).
2. Use a T40006 Socket in order to remove the
spark plug. Loosen the spark plug and use the
socket to remove the spark plug by hand in order
to detect problems with the threads. Discard the
spark plug.
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Illustration 47
3. Use T400005 Plug Bore Brush in order to clean
the ground electrode (3).
4. Install the new spark plug by hand. Tighten the
spark plug to a torque of 47 N·m (34 lb ft).
5. Connect the wiring harness (2).
Aftercooler Core - Clean/Test
(Air-To-Air Aftercooler)
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The air-to-air aftercooler is OEM installed in many
applications. Please refer to the OEM specifications
for information that is related to the aftercooler.
Aftercooler Core - Inspect
Note: Adjust the frequency of cleaning according to
the effects of the operating environment.
Inspect the aftercooler for these items: damaged fins,
corrosion, dirt, grease, insects, leaves, oil and other
debris. Clean the aftercooler, if necessary.
For air-to-air aftercoolers, use the same methods that
are used for cleaning radiators.
Maintenance Section
ARD Spark Plug - Clean/Inspect/Replace
93
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