Engine Maintenance Schedule - Generac Power Systems MAC1.2G Owner's Manual

Indirect fired heater
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Engine Maintenance Schedule

Daily
50 Hour Break-In
Every 500 Hours
Every 1000 Hours
Every 2000 Hours
Every 3000 Hours
Every 6000 Hours
As Required
1
During the initial operation of a new or rebuilt engine with Break-In Plus, change the oil and filter between a minimum of 100 hours and a
maximum of up to 500 hours.
2
Service intervals depend on sulfur content of the diesel fuel, oil pan capacity, and the oil and filter used.
NOTE: For more information, see engine manual.
Owner's Manual for Indirect Fired Heater
Check engine oil level.
Check fuel level.
Check engine coolant level.
Drain water from fuel filters.
Inspect air cleaner, dust unloader valve, and indicator.
Perform visual walk around inspection.
Inspect generator windings for dirty or grime.
Replace engine oil and engine oil filter.
Inspect and adjust cooling fan V-belt.
Drain water from fuel tank.
Drain oil/water separator.
Service battery.
Change engine oil and replace oil filter.
Inspect coolant pump.
Inspect open crankcase vent (OCV) system.
Remove and replace fuel filter elements.
Inspect belt wear.
Inspect belt tensioner.
Inspect cooling system.
Pressure test cooling system.
Check and adjust engine speeds.
Inspect engine mounts.
Inspect engine ground connection.
Inspect generator ball bearings.
Check the DC no load excitation voltage. See generator manual.
Inspect crankshaft vibration damper.
Adjust valve clearance.
Test glow plugs for continuity.
Flush and refill cooling system.
Test thermostat opening temperature.
Drain water from fuel filters.
Add coolant.
Replace air filter element.
Inspect primary air filter element.
Replace fan belt.
Inspect fuses.
Inspect electrical wiring and connections.
Purge fuel system.
1 2
Maintenance
19

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