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Owner’s Manual for Mobile Generator 49
Resetting Maintenance Alarms
The controller will display a warning message when the
unit is due for maintenance or service. See
Table 4-5
for
applicable service intervals. Once the unit has been
serviced, the appropriate maintenance alarm reminder
must be reset. Proceed as follows to reset the
maintenance alarms:
1.
With the unit shut down, rotate the battery discon -
nect switch to ON (I). The controller automatically
displays to the Home page after initialization.
2.
Press ▲, ►, ▼, or ◄ to display the maintenance
pages.
3.
Simultaneously press

and O. The Configuration
menu displays.
4.
Press

until the Maintenance group is high -
lighted.
5.
Press ► to display the sections. Press

to high -
light the Maintenance section.
6.
Press ► to display the parameters and highlight
the maintenance alarm that requires reset.
7.
Press

to select the editable parameters. The cur -
sor highlights NOT RESET under the selected
maintenance alarm. Press

to highlight RESET.
8.
Press

to reset the selected maintenance alarm.
9.
To perform additional maintenance alarm resets,
repeat steps 6–8.
NOTE: If the selected maintenance alarm does not
require reset, press

to highlight NOT RESET, then
press

to return to the parameters section.
10.
Press and hold

for five seconds to save
changes. Press and hold O for five seconds to dis -
card changes made.
DEF System Maintenance
DEF Testing
NOTE: 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. If DEF appears cloudy or has a
colored tint, it is likely not within specification. DEF in this
condition should not be used. Drain the tank, flush with
distilled water, and fill with new DEF. After filling the tank,
check DEF concentration.
If the DEF passes the visual and smell tests, 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 has been
contaminated with water.
Follow the instructions included with either tool to obtain
the measurement.
The correct DEF concentration is 32.5% 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.
NOTE: Do not create DEF by mixing agricultural grade
urea with water. Agricultural grade urea does not meet
the necessary specifications and can damage the
aftertreatment system.
DEF Tank Cleaning
Proceed as follows to clean the DEF tank:
1.
Drain DEF tank into a suitable container. See DEF
Disposal .
2.
Flush DEF tank with distilled water, and fill with
new or good DEF.
DEF Disposal
Large amounts of DEF should be contained. If large spills
occur, contact local environmental authorities for assis -
tance with clean up.
If a substantial quantity of DEF is not within specification,
contact the DEF supplier for assistance with disposal. Do
not dump large quantities of DEF onto the ground or
send DEF to wastewater treatment facilities.
DEF Tank Refilling
IMPORTANT NOTE: If DEF is filled into engine fuel
tank or other fluid compartment, do not operate
engine until system is properly purged of DEF. Con -
tact a GMASD immediately to determine how to clean
and purge the system.
NOTE:
Use only distilled water to rinse components that
are used to deliver DEF. Tap water can contaminate DEF.
If distilled water is not available, rinse with clean tap
water, then thoroughly rinse with ample amounts of DEF.
WARNING
Personal injury. Avoid prolonged contact with skin. Wash
skin thoroughly with soap and water. Remove contaminated
clothing and wash before reuse. Seek medical attention if
skin becomes irritated. Failure to do so could result in
personal injury.
(000338a)
CAUTION
Equipment Damage. Immediately clean any surfaces
with water that come in contact with diesel exhaust
fluid. Failure to do so could result in equipment
damage.
(000365)