Northern Lights L1276 / L1276A2 — Flushing Cooling System

Maintenance

For the Northern Lights L1276 / L1276A2, from the Northern Lights operator's manual.

Applies to: Northern Lights L1276A2

Procedure

1. Flush cooling system every 600 hours or yearly; engine must be stopped and cold.
2. Close seacock.
3. Remove pressure cap from expansion tank; open turbocharger air vent if applicable.
4. Open drains on exhaust manifold and engine block; drain fresh water system.
5. Pour clean water into expansion tank until drain water is clear and free of sediment.
6. Close drains; fill fresh water system with recommended coolant mixture.
7. Close cooling system air vent on turbocharger; open seacock.
8. Start engine; check hoses and connections and repair leakage.

Full service-parts list: Northern Lights L1276A2 →

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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