Northern Lights M844, M844L User Manual

M844 / M844L

Soundshield Assembly Instructions

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Seattle, WA 98107
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1200 West Int’l Airport Road
P.O. Box 190208
Anchorage, AK 99519
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East Coast Branch

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8 Connector Road
Andover, MA 01810
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L617 03/05

M844 / M844L Soundshield

ITEM # DESCRIPTION ADE P/N QTY NOTES

1. Base board 05-70003 1

2. Extrusion, vertical 05-70004 4

3. Extrusion, horizontal, sides 05-70006 2

4. Extrusion, horizontal, ends 05-70007 2

5. Center post, top 05-70021 1

6. Center post, vertical 05-70022 2

7. Corner casting 05-70001 4

8. Bolting assembly 00-75714 22

9. Tie bracket 23-78701 2

10. Rear panel assembly 05-70032 1

11. Front panel assembly 05-70031 1

12. LH side panel forward assembly 05-70026 1 with vent box

13. LH side panel aft assembly 05-70028 1

14. RH side panel forward assembly 05-70027 1 no vent box

15. RH side panel aft assembly 05-70029 1

16. Top panel forward assembly 05-70023 1

17. Top panel aft assembly 05-70024 1

18. Penetration panel assembly 39-78008 1

19. Panel retainer bracket, 30R 23-70036 6

20. #10 screw s/s x 5/8” long 12-72002 12

21. Toe bracket, 30R 23-70038 4

22. Hex nut, nylock 1/4-20 14-00112 10

23. Elbow 21-10008 1

24. Hose clamp 19-00024 1

Specifications

Enclosure:

Length (OA) 49.41 in (1255 mm)

Width 26.66 in (677 mm)

Height 28.99 in (736 mm)

Base:

Length 49.91 in (1268 mm)

Width 27.16 in (690 mm)

Height 0.75 in (19.05 mm)

Assembled Height:

29.74 in (755 mm)

Assembled Weight (est):

125 lbs (57.0 kg)

1

1

Prior to assembly, inspect all components for damage. Report any damage to the
shipping company. Check the packing list to be sure all parts have been included.

2

3

Select a mounting location in accordance with the guidelines in the IM1000 Instal­lation Manual (supplied with the generator set). The generator set must typically be
mounted on a rigid, flat surface above a strong structure, such as the vessel’s string­ers, to minimize vibration transference to the hull. CAUTION: THE BASEBOARD

IS A NON-STRUCTURAL MATERIAL AND MUST BE FULLY SUPPORTED TO
MINIMIZE FLEX.

Note that the generator set is designed for single side service. When viewed from

Install the base board (item 1) in the vessel in as near a level attitude as possible.
Observe the arrow symbol on the board’s topside surface. This indicates the top and
forward end orientation of the genset / soundshield. Make sure arrow is correctly
positioned or the unit will not mount correctly within the shield.

4

Install toe bracket (item 21) to each corner of the base board with screws (item 20)
into pre-drilled holes. See figure 1.

Locate data plate on right side of generator and note power rating (16 kW or 20 kW).

Note that there are pre-drilled “through” holes on each side of the baseboard. Use
these holes as guides to drill into the supporting substructure for through-bolting.

Place the generator set onto the baseboard lining up the appropriate thru-holes, as
marked on the baseboard, with the mounting holes in the genset base frame. Use
3/8” or 9 mm bolts of appropriate length to secure the genset and baseboard to the

2