Northern Lights — Winterizing / Out-of-Service Storage

Maintenance · Generator set

From a Northern Lights operator's manual covering: M20CRW3, M844DW3, M844LW3, M844LW3G Gem series, M844W3. Check it applies to your exact model before use.

Applies to: Northern Lights M20CRW3, Northern Lights M844DW3, Northern Lights M844LW3, Northern Lights M844W3, Northern Lights 844 / 844L engine

Procedure

1. Change engine oil and filter.
2. Run engine to at least 140 F using fuel dosed with fuel system stabilizer/conditioner.
3. Drain, flush and fill cooling system with pre-mixed 50/50 ethylene-glycol coolant.
4. Loosen alternator drive belt.
5. Seal intake and exhaust openings with heavy plastic bags and duct tape.
6. Cover engine in large plastic bag with desiccant packs and seal.
7. Store inside a building, preferably climate controlled.

Full service-parts list: Northern Lights M20CRW3 →, Northern Lights M844DW3 →, Northern Lights M844LW3 →, Northern Lights M844W3 →

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.

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