Engine And Generator Maintenance; Engine Break In Requirements - Magnum MMG 125 Operating Manual

Installation of a transfer switch or other type of remote starting device is the responsibility of the generator user.
Installation of such devices must be performed by following all directions supplied by the manufacturer of the
switch. If attaching generator to a power supply normally serviced by a utility company, notify the utility company
and check local and state regulations. Familiarize yourself with all instructions and warning labels supplied with the
switch.
It is strongly recommended that ONLY a licensed electrician perform any wiring and any related
connections to the generator. Installation should be in compliance of the National Electric Code as
well as any state or local codes or regulations. Failure to follow these procedures could result in
property damage, personal injury or death. Before any connections are attempted, make sure the
main circuit breaker and the engine start switch are in the OFF "O" position and that the negative
(-) battery cable has been disconnected from the engine starting battery.
When using the generator as a stand by or substitute power supply, make sure the output voltage
and phase rotation of the generator match those of the local power utility. Improper voltage or
phase rotation may cause equipment damage or malfunction.

ENGINE AND GENERATOR MAINTENANCE

Poorly maintained equipment can become a safety hazard! In order for the equipment to operate safely and
properly over a long period of time, periodic maintenance and occasional repairs are necessary. NEVER perform
even routine service (oil/filter changes, cleaning, etc.) unless all electrical components are shut down. When
servicing this equipment always follow the instructions listed below.
Before servicing this machine, make sure the engine start switch is turned to the OFF "O" position.
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The circuit breakers are open (OFF, "O").
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The emergency stop switch is activated (pushed in).
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The negative (-) terminal on battery is disconnected.
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Attach a "DO NOT START" sign to the control panel. This will notify everyone that the unit is being serviced
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and will reduce the chance of someone inadvertently trying to start the unit.
If the unit is connected to a remote start or transfer switch, make sure the remote switch is also off and
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tagged.
Never wash the unit with a high pressure hose or with any kind of power washer.
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Never wash the engine block or fuel tank with a power washer or steam cleaner. Water may enter the
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cabinet and collect in the generator windings or other electrical parts, causing damage.
If the unit is stored outside, check for water inside the cabinet and generator and dry the unit thoroughly
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before starting.
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.
The engine is 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 speeds and/or light load or if makeup oil is required, a longer break in period
may be needed. Consult the engine OPERATION AND MAINTENANCE MANUAL for a full description of neces-
sary procedures on the addition of break-in oil and extension of the break-in period. Use the schedule table on the
following page as a guide for regular maintenance intervals.
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WARNING
NOTICE