Northern Lights M864 — Sound Enclosure Assembly
Installation
For the Northern Lights M864, from the Northern Lights service manual.
Applies to: Northern Lights M864
Before you start
- Avoid positioning enclosure into corners with overhead blocked to reduce intake/exhaust air recirculation.
- Generator sets with wet exhaust installed near or below the vessel's water line must use a siphon break to prevent backflow that can ruin the engine or sink the vessel.
- Leak alarm light will not operate if polarity is switched.
Procedure
- Select mounting location per IM1000 Installation Manual, on a rigid flat surface above a strong structure.
- Install rear panel assembly to the back face of the genset base; secure with M8 hardware.
- Insert genset air intake snorkel hose into the receiver on the rear panel until it hits the tab stop.
- Install right side lower valence panel, then left side lower valence panel.
- Install front lower valence, aligning holes to pins on both side valence panels.
- Secure front valence to base frame with M8 flatwasher, lockwasher, and hex head capscrew.
- Connect exhaust, sea water, fuel, DC control harness, battery leads, and AC output leads through the rear panel holes.
- Install non-service side panel using thumb screws A and B.
- Install front panel assembly, engaging pins in the front lower valence and securing with thumb screws.
- Install leak alarm light assembly and connecting harness before installing the service side aft panel.
- Connect sound shield wire harness to emergency stop switch and leak alarm light, observing lead polarity.
- Install float switch to the bracket on the base frame; verify leak alarm light operation.
- Install seal bar assembly, securing with thumb screw A at four places, hand tight only.
- Install top panel assembly, aligning six locating pins with corresponding holes.
- Install service side panel assembly, guiding nylon locator pins into slots and closing ring latch.
Tools required
- hand tools (no tools on seal bar/ring latch thumb screws)
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Northern Lights M864 →
Source: Northern Lights service 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.