Generac Mobile MMG35DF4, Owner'S Manual, Page: 45 / 60

Owner’s Manual for Mobile Generator 41
Maintenance
Engine Break-In Requirements—
Isuzu
NOTE:
The EPA final Tier 4 Isuzu engines have an
engine break-in duration that will prohibit the unit from
providing rated standby power upon factory delivery. The
unit is tested at the factory and is initially capable of a
prime standby power output. The engine performance
will increase to 95% of full rated power during the first 20
hours of loaded operation. The unit will provide full power
after the complete engine break-in period of 70 hours of
loaded operation.
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—Isuzu Engine .
Engine Break-In Requirements—John
Deere
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.
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 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.
Exhaust Filter Service Requirements
The exhaust filter system contains a Diesel Particulate
Filter (DPF). Over time, the DPF will require professional
servicing to remove ash buildup. The expected service
interval will be at least 3,000 or 4,500 hours, based on
engine power and operating conditions. Actual service
should take place when the indicator light appears on the
controller. The DPF should be cleaned or replaced by an
authorized service provider only.
To avoid buildup of diesel particulates or soot in the
exhaust filter system:
•
Utilize the Automatic Exhaust Filter Cleaning
mode.
•
Avoid unnecessary idling.
•
Use proper engine oil. See the engine operator’s
manual.
•
Use only ultra low sulfur diesel fuel. See the engine
operator’s manual.
•
Do not run with less than 30% of a full load.
Checking Generator Drive Plate
Torque
1.
Disconnect battery.
2.
Remove generator fan guard.
WARNING
Hazardous Material. Only an authorized engine service dealer
should remove, handle and dispose of Diesel Particulate Filter
(DPF) ash. Failure to dispose of DPF ash properly could result
in serious injury and environmental damage.
(000307)