Major A Preventive Maintenance Service — Air Cooled, 8–28kW

Annual preventive maintenance performed on site by a qualified technician.

Includes: full inspection of the generator and automatic transfer switch, including oil level, wiring, and enclosure condition; battery load test and terminal service; controller and fault-code review; exercise schedule verification; run off load; transfer test; engine oil and oil filter change; air filter replacement; spark plug inspection with gap measured against specification, re-gapped or replaced on condition; leak check and final operational verification.

A written service report is provided the following business day.

Not included: engine oil, filters, spark plugs, and other consumable parts, billed separately.

Additional work identified during the visit will be quoted separately for approval.