Product Manual

Owner’s Manual for MDG25IF4 37
Maintenance
* If the unit is operated in a harsh environment or fuel quality is questioned, replace every 250 hours instead of every 500 hours.
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.
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.
Resetting Maintenance Alarms
The PowerZone 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.
Table 4-1. Basic Maintenance Schedule
Item Daily
First 50
Hrs.
(Break-
in
Period)
Every
250
Hrs.
Every
500 Hrs.
Every
2000
Hrs.
As
Require
d
Check engine oil level ♦
Check engine coolant level ♦
Check fuel level ♦
Drain fuel filter ♦
Check tire pressure ♦
Check all electrical connections ♦
Clean battery ♦
Check fan belt tension (replace if necessary) ♦
Inspect radiator fins for debris; clean as
required
♦
Pre-heating condition check ♦
Check engine starting and noise conditions ♦
Check exhaust smoke condition ♦
Perform Daily Walk Around Inspection ♦
Replace engine oil ♦
♦
*
Replace fuel filter elements
♦
*
Clean water sedimenter element
♦
*
Electromagnetic pump filter replacement or
cleaning
♦
*
Oil filter element replacement ♦♦
Replace air filter element ♦
Lubricate leveling jacks ♦
Checking Generator Drive Plate Torque ♦
Replace fan belt ♦
Service air cleaner filter elements ♦