TSE DPT60, Owner'S Manual

Page: 81 / 459

Fuels, Lubricants, and Coolants
DX,DEF,TEST -19-13JUN13-1/1
DX,DEF,DISPOSE -19-13JUN13-1/1
Testing Diesel Exhaust Fluid (DEF)
IMPORTANT: Using DEF with the correct
concentration is critical to engine and
aftertreatment system performance. Extended
storage and other conditions can adversely
alter the DEF concentration.
If DEF quality is questionable, draw a sample out of the
DEF tank or storage tank into a clear container. DEF
must be crystal clear with a light ammonia smell. If DEF
appears cloudy, has a colored tint, or has a profound
ammonia smell, it is likely not within specification. DEF
in this condition should not be used. Drain tank, flush
with distilled water and refill with new or good DEF. After
refilling the tank, check the DEF concentration.
If the DEF passes the visual and smell test, check the DEF
concentration with a handheld refractometer calibrated
to measure DEF.
DEF concentration should be checked when the engine
has been stored for extended periods, or if there is
suspicion the engine or packaged DEF fluid has been
contaminated with water.
Two approved tools are available through your John
Deere dealer:
•
JDG11594 Digital DEF Refractometer—A digital tool
providing an easy to read concentration measurement
•
JDG11684 DEF Refractometer—Low-cost alternative
tool providing an analog reading
Follow instructions included with either tool to obtain the
measurement.
The correct DEF concentration is 31.8—33.2% urea. If
the DEF concentration is not within specification, drain the
DEF tank, flush with distilled water and fill with new or good
DEF. If packaged DEF is not within specification, dispose
of DEF packages and replace with new or good DEF.
Disposal of Diesel Exhaust Fluid (DEF)
Although there is little issue with minor spillage of DEF on
the ground, large amounts of DEF should be contained. If
large spills occur, contact local environmental authorities
for assistance with clean-up.
If a substantial quantity of DEF is not within specification,
contact the DEF supplier for assistance with disposal. Do
not dump substantial quantities of DEF onto the ground or
send DEF to wastewater treatment facilities.
10-3 032015
PN=34