Service Manual

ISB, ISBe and QSB (Common Rail [...] Aftertreatment Diesel Exhaust Fluid Line Restriction Te [...]
Section 11 - Exhaust System - Group 11 Page 11-53
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Finishing Steps
WARNING
Batteries can emit explosive gases. To reduce the
possibility of personal injury, always ventilate the
compartment before servicing the batteries. To
reduce the possibility of arcing, remove the negative
(-) battery cable first and attach the negative (-)
battery cable last.
• Connect the batteries. Refer to the OEM service
manual.
Aftertreatment Diesel Exhaust Fluid
Line Restriction Test (011-086)
General Information
WARNING
The diesel exhaust fluid contains urea. Do not get the
substance in your eyes. In case of contact,
immediately flood eyes with large amounts of water
for a minimum of 15 minutes. Avoid prolonged
contact with skin. In case of contact, immediately
wash skin with soap and water. Do not swallow
internally. In the event the diesel exhaust fluid is
ingested, contact a physician immediately.
WARNING
The exhaust and exhaust components can remain hot
after the engine has been shut down or secured. To
avoid the risk of fire, property damage, burns or other
serious personal injury, allow the exhaust system to
cool before beginning this procedure or repair and
make sure that no combustible materials are located
where they might come in contact with hot exhaust or
exhaust components.
The diesel exhaust fluid (DEF) dosing unit connections
are illustrated:
1 Compressed air supply
2 Air solenoid connector (2 pin)
3 37-pin ITT Cannon™ connector
4 DEF supply to aftertreatment nozzle (PTFE line)
5 DEF supply to pump
6 DEF return
Lines 4, 5, and 6 have quick-fit connections.
This procedure describes a method for testing the diesel
exhaust fluid supply and return lines for leaks and/or
restrictions.