Service Manual

Aftertreatment Nozzle ISB, ISBe and QSB (Common Rail [...]
Page 11-38 Section 11 - Exhaust System - Group 11
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Clean and Inspect for Reuse
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
Wear appropriate eye and face protection when using
compressed air. Flying debris and dirt can cause
personal injury.
To clean the nozzle use hot water, warmer than 40°C
[104°F], to make sure the crystals inside the nozzle can
be removed.
Immerse the aftertreatment nozzle in a suitable container
of clean, warm water.
Connect an air line with a pressure of no more than 69
kPa [10 psi], and blow through the aftertreatment nozzle.
When immersed in water, the different spray angles from
each hole will be clearly visible.
Dry with compressed air.
Visually inspect the tip of the aftertreatment nozzle.
All spray holes should be clearly visible.
Visually check the body of the injector for damage.
NOTE: If shaken, there may be a slight noise from the
aftertreatment nozzle. This is normal.
Install
Install the aftertreatment nozzle into the exhaust system
locating boss. A keyway in the exhaust system locating
boss will orientate the aftertreatment nozzle correctly.
Apply high temperature anti-seize compound to the
threads of the locating boss.
Install the aftertreatment nozzle retaining nut.
Torque Value: 60 N•m [ 44 ft-lb ]