Northern Lights M673 Generator Set

⚠ Generator sets with wet exhaust installed near or below the vessel's water line must use a siphon break to prevent backflow of water into the engine, which can ruin the engine and possibly sink the vessel

1. Inspect all components for damage and check the packing list before assembly
2. Loosen and rotate down original factory lifting points below the highest point on the engine, then retighten
3. Select mounting location per IM1000 Installation Manual on a rigid, flat surface above a strong structure
4. Position the enclosure so its left side and rear are 6 in recommended (4 in minimum) from bulkheads, avoiding corners with blocked overhead
5. Install toe brackets to each corner of the genset base flanges with machine screws, flat washers, and nylock hex nuts
6. Install the four vertical extrusions with bolting assemblies; leave loose enough for adjustment during building
7. Loosely install front and left-hand side panel retainer blocks to the vertical extrusions
8. Position the pre-assembled top frame with triangular penetration plate toward the front and tighten all bolting assemblies progressively
9. Install the junction box support cover into the cavity of the support bracket until firmly engaged
10. Install the rear sound shield panel, engaging top retaining clips and securing the bottom with bolts, flat washers, and shoulder washers
11. Bend the intake air snorkel hose into the rear panel notch without kinking or restricting airflow
12. Connect exhaust, sea water, fuel, DC control harness, battery, and AC output leads through the rear panel holes
13. If installing a siphon break, replace hole plugs with rubber grommets and route hoses per the IM1000 Installation Manual
14. Start the generator set and run under load to check for leaks of fuel, water, or exhaust gas
15. Install left side, front, top, and right side panels, and insert foam blocks into the base pan mounting foot pockets