Northern Lights M753 / M753W2 — Winterizing or Out-of-Service
Maintenance · Generator set
For the Northern Lights M753 / M753W2, from the Northern Lights operator's manual.
Applies to: Northern Lights M753, Northern Lights M753W2
Procedure
- Drain fresh water and seawater cooling systems completely; shut off seacocks before opening drain cocks.
- Drain water supply lines and wet exhaust line.
- Loosen seawater pump cover and drain pump.
- Fill fuel tank or add biocide per manufacturer's instructions.
- Seal air cleaner inlet, exhaust opening, crankcase breather pipe, and fuel tank vent with plastic bags and tape.
- Store set in dry, protected place; cover if stored outside.
- Change crankcase oil and filter.
- Loosen alternator belt.
- Disconnect and clean battery; remove to warm storage if possible.
- Clean outside of unit; paint scratched or chipped surfaces; apply corrosion preventative to exposed metal.
Full service-parts list: Northern Lights M753 →, Northern Lights M753W2 →
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.