215922
308
Revision A
5.12.2
Diesel Exhaust Fluid Supply Module Filter
The supply module filter is designed to prevent debris that may be suspended in the diesel exhaust fluid (DEF) from
entering the system. Permanent damage to
—
and premature failure of
—
the DEF supply module can result from fluid
debris.
Checking Diesel Exhaust Fluid Supply Module Filter
1015730
A
Figure 5.115: DEF Supply Module
1.
Locate aftertreatment diesel exhaust fluid (DEF) supply
module (A) on the inside of the right platform by the engine
oil dipstick.
1015731
A
Figure 5.116: DEF Supply Module Filter Cap
2.
Inspect the area around the seal and vent of aftertreatment
DEF supply module filter cap (A) for signs of leakage.
3.
DEF fluid leaves a white deposit when dry. If there is
evidence of leaking, remove the supply module filter, clean
and inspect it before replacing it. For instructions, refer to
Cleaning and Inspecting Supply Module Filter, page 310
.
Removing Supply Module Filter
WARNING
Batteries emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before
servicing the batteries. To reduce the possibility of electrical arcing, remove the negative (
–
) battery cable first and
attach the negative (
–
) battery cable last.
WARNING
Diesel exhaust fluid (DEF) contains urea, which can irritate the skin, eyes, digestive, and respiratory systems. Do NOT
get the substance in your eyes. In case of contact, immediately flush your eyes with water for a minimum of 15
minutes. Do NOT ingest DEF. If DEF is ingested, contact a doctor immediately.
