Northern Lights M753, M773L User Manual

M753 / M773L

Soundshield Assembly Instructions

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L613 02/05

M753K/M773LK Soundshield

ITEM # DESCRIPTION ADE P/N QTY NOTES

1. Base board 05-78609 1

2. Extrusion, vertical 05-78611 4

3. Extrusion, horizontal, sides 05-78612 2

4. Extrusion, horizontal, ends 05-78613 2

5. Corner casting 05-70001 4

6. Bolting assembly 00-75714 20

7. Rear panel assembly 05-78606 1

8. Front panel assembly 05-78603 1

9. LH side panel assembly 05-78607 1 w/vent box

10. RH side panel assembly 05-78604 1 no vent box

11. Top panel assembly 05-78602 1

12. Penetration panel assembly 39-78008 1

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

14. #10 screw s/s x 5/8” long 12-72002 8

15. Toe bracket, 30R 23-70038 4

16. Hex nut, nylock 1/4-20 14-00112 6

17. 1” 90 Degree Elbow 21-22002 1

Specifications

Enclosure:

Length (OA) 38.82 in (986 mm)

Width 25.16 in (639 mm)

Height 24.60 in (624 mm)

Base:

Length 39.32 in (998.7 mm)

Width 25.66 in (652 mm)

Height 0.75 in (19.05 mm)

Assembled Height:

25.32 in (643 mm)

Assembled Weight (est):

92.5 lbs (42.0 kg)

L613 02/05

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 are 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 15) to each corner of the base board with screws (item 14)
into pre-drilled holes. See figure 1.

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.

Snorkel hose
on M773LK

Place the generator set onto the baseboard, lining up the thru-holes 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 underlying structure.

2

L613 02/05