Northern Lights M773L — Winterizing / Out-of-Service
Maintenance · generator set
For the Northern Lights M773L, from the Northern Lights operator's manual.
Applies to: Northern Lights M773L
Before you start
- Applies if the generator set will not be used for more than 3 months.
Procedure
- Change engine oil and filter as recommended.
- Run the engine up to at least 140°F using fuel dosed with fuel system stabilizer/conditioner.
- Completely drain, flush and fill the cooling system with pre-mixed 50/50 conventional ethylene-glycol heavy-duty diesel coolant.
- Loosen the alternator drive belt.
- Seal off intake and exhaust openings with heavy plastic bags and duct tape.
- Cover the entire engine in a large plastic bag with desiccant packs and store inside a building.
Specs & values
- Run engine up to at least 140°F
Full service-parts list: Northern Lights M773L →
Source: Northern Lights operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.