Northern Lights — Winterizing / Out-of-Service

Maintenance · generator set

From a Northern Lights operator's manual covering: NL378, NL378x, NL484, NL488x, NL498x. Check it applies to your exact model before use.

Applies to: Northern Lights NL378, Northern Lights NL378x, Northern Lights NL484, Northern Lights NL488x, Northern Lights NL498x

Procedure

1. Drain and flush radiator and cooling system; leave dry or refill with antifreeze-water mixture.
2. If refilling, start engine and run to circulate antifreeze.
3. Fill fuel tank or add biocide as per manufacturer's instructions.
4. Seal air cleaner inlet, exhaust opening, crankcase breather pipe, and fuel tank vent with plastic bags and tape.
5. Change crankcase oil and filter.
6. Loosen alternator belt.
7. Disconnect and clean battery; remove to warm storage place if possible.
8. Clean outside of unit; paint scratched or chipped surfaces; put corrosion preventative on exposed metal.
9. Store set in a dry, protected place; if outside, protect well with a cover.

Full service-parts list: Northern Lights NL378 →, Northern Lights NL378x →, Northern Lights NL484 →, Northern Lights NL488x →, Northern Lights NL498x →

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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