Product Manual

42 Owner’s Manual for Mobile Generator
Maintenance
Engine Break-In Requirements
NOTE: During the first 20 hours of operation, avoid long
periods of no load or sustained maximum load operation.
If the generator is to run for longer than five minutes
without a load, shut down the generator.
John Deere engines are supplied with engine break-in oil
from the factory. Extra care during the first 100-500 hours
of engine operation will result in better performance and
longer engine life. Do not exceed 500 hours of operation
with the break-in oil. Operate the engine at heavy loads
(60–90% of maximum) as much as possible. If the engine
has spent significant time at idle, constant speed(s), or
light load, or if makeup oil is required, a longer break in
period may be needed. Refer to the engine operator’s
manual for a full description of necessary procedures on
the addition of break-in oil and extension of the break-in
period. For more information on regular maintenance
intervals, refer to Basic Maintenance Schedule—John
Deere Engine.
Resetting the Maintenance Alarms
The controller will display a warning message when the
unit is due for maintenance or service. The maintenance
or service interval is set at 250, 500 and 3,000 hours of
engine running time. 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, move the control power
switch to CONTROL ON (I). The controller will
toggle automatically to the home screen after
initialization.
2. Press ▲, ►, ▼, or ◄ to enter the maintenance
screens.
3. Press  and O simultaneously. The next screen
displays the Configuration menu.
4. Press  to move the cursor (blue highlighted text)
down to the maintenance group.
5. Press ► to access the sections. Press  to
highlight the maintenance section.
6. Press ► to access the parameters and highlight
the maintenance alarm that needs to be reset.
7. Press  to select the editable parameters. The
cursor will highlight 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 need
to be reset, press  to highlight Not Reset and 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
discard changes made.
Testing DEF
NOTE: Using DEF with the correct concentration is
critical to engine and after-treatment 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.
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—A low-cost
alternative tool providing an analog reading.
Follow the 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.
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 after
treatment system.
DEF Tank Cleaning
Proceed as follows to clean the DEF tank:
1. Drain DEF tank into a suitable container. See
Disposal of DEF.
2. Flush DEF tank with distilled water, and fill with
new or good DEF.