Short answer
A diesel generator annual maintenance contract (AMC) is a yearly agreement for scheduled servicing of your set, usually with breakdown support. What it covers depends on the type of contract, and the exact inclusions are agreed in writing after a site assessment.
Types of contract we offer
Comprehensive AMC: scheduled servicing and breakdown support, with parts and consumables covered as per the agreement Non-comprehensive AMC: scheduled servicing and breakdown support, with parts and consumables charged separately Preventive maintenance contract: planned visits and inspections to keep the set healthy On-call maintenance: no fixed schedule; you call when the set needs attention Operation and maintenance contract: our team operates and maintains the generator at your site
What is usually included
Initial health assessment and asset registration Maintenance calendar and scheduled visits Running-hour-based service Cooling system, battery and panel inspection Service reports, maintenance history and renewal reminders
How to choose
Choose by how much the generator matters to your site and who should carry the cost of parts. A hospital, data room or factory line usually wants scheduled visits plus breakdown cover. A rarely used standby set may need only a preventive contract. Tell us how your set is used and we will suggest a fit.
Written by the S. Y Diesel Services team. Published 2026-11-10. General guidance only: the engine maker’s manual and a site inspection decide the exact work for your generator.