Martin Engineering M3829-08/13
6
Martin
®
Sonic Horns
Installing
restraining cable
WARNING
!
Always install restraining cable to secure sonic horn to vessel.
Without restraining cable, sonic horn could fall and cause
injury.
Do not use restraining cable to mount sonic horn to vessel wall.
Purpose of restraining cable is to keep sonic horn from falling
should it come loose from vessel wall, not as primary means of
securing sonic horn to wall.
Figure 3. Installing Restraining Cable
1. Weld D-ring (A) onto vessel wall (B) with 1/4-in. (6-mm) field weld.
2. Insert one end of wire rope (C) through D-ring (A) on vessel, making a
3-in. (76-mm) loop.
3. Route wire rope (C) through brackets (E) and back to D-ring on vessel.
4. Insert wire rope (C) through D-ring (A) on vessel, making a 3-in.
(76-mm) loop.
5. To fasten each wire loop:
a. Clamp wire rope with one cable clamp (D) as close to loop as possible.
Place another cable clamp 1-3/4 in. (44 mm) from first clamp.
b. Leave at least 1 in. (25 mm) of wire rope on dead end.
c. Gradually tighten nuts alternately and evenly to 15 ft-lbs.
Leave 2 to 3 in. (51 to 76 mm) slack in wire rope.
A.
B.
C.
D.
D-ring
Vessel Wall
Wire rope
Cable clamp
E. Bracket
D
D
A
B
C
D
E
E
D
Installation
