Engine Break-In Requirements; Resetting The Maintenance Alarms - Generac Power Systems MAGNUM MMG75D Operating Manual

Item
Check Automatic Belt Tensioner and Belt
Wear
Check Cooling System
Lubricate Leveling Jack(s)
Check Generator Drive Plate Torque (see
Checking Generator Drive Plate
Replace OVR filter
Replace oil filter
Replace air filter
Replace primary fuel filter
Replace fuel filter final
Replace fan belt
Test Thermostats
Replace Air Cleaner Elements
Replace Alternator and Fan Belts
Check Fuses
* Replace primary air cleaner when filter minder gauge shows a vacuum of 25 in. H
** If not using John Deere Plus 50 II engine oil, the interval must be decreased to every 250 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 the generator down.
John Deere engines are supplied with engine break-in oil from the factory. Extra care during the first 100 hours of
engine operation will result in better performance and longer engine life. DO NOT exceed 100 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), and/or light load, or if makeup oil is required, a longer break in
period may be needed. See 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.

RESETTING THE MAINTENANCE ALARMS

The Power Zone™ 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 3000 hours of engine running time. Once the unit has been
serviced, the appropriate maintenance alarm reminder needs to be reset. The following procedure demonstrates
how to reset the maintenance alarms:
1. With the unit shut down, move the Control Power switch to "CONTROL ON (/I)". After initialization, the controller
will toggle automatically to the Home screen.
Press ▲, ►, ▼, or ◄ to enter the maintenance screens.
2.
Press  and O simultaneously. The next screen will display the Configuration menu.
3.
33701 C
Table 4: Basic Maintenance Schedule
(Break-
Daily
Period
Torque)
MMG75D-100D Operating Manual
100
Every
Hrs.
Every 500
250 Hrs./12
In
Hrs. Month
s
Only)









Maintenance
Every
Every As
3000
1000 Require
Hrs./36
Hrs. d
Months





O.
2
39