Northern Lights M864 — SP16. Heat Exchanger

Maintenance

For the Northern Lights M864, from the Northern Lights owner's manual.

Applies to: Northern Lights M864

Procedure

1. Clean the heat exchanger core once a year or after 2400 hours of operation.
2. Drain the expansion tank and heat exchanger and remove the end covers.
3. Clean the inside of the exchanger core tubes using a metal rod.
4. Flush, inspect, and clean again if necessary.
5. Reassemble the heat exchanger, fill the cooling system, start the engine and check for leaks.

Full service-parts list: Northern Lights M864 →

Source: Northern Lights owner'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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