The Model 6H horn is tuned to a frequency of 295Hz. It has a female 3/4 I.P.S.
threaded opening for connection to the compressed air system and is provided with a
mounting ear on top of the casting that includes two mounting holes for 1/2 inch bolts.
It also contains a mounting flange around the pipe opening with four mounting holes
for 1/2 inch bolts.
B.
INSTALLATION.
1.
Determine the location of the horn and air valve, and layout the airline to
them from the air source. For optimum performance the air line should be as short
and as straight as possible. Angles and bends should be avoided as much as possible,
but where unavoidable, it is recommended that long sweep elbows be used to maximize
air flow to the horn.
NOTE
The valve to actuate the horn should be located as close to the horn as
possible. The farther it is located from the horn the longer it will take to
obtain full volume when activated and the longer it will take to stop sounding
when deactivated.
2.
Before attaching the horn to the air line, blow out the air line to remove any
debris that may have accumulated during assembly. Failure to do so may cause the
debris to become lodged in the air valve or between the horn’s diaphragm and body
which will restrict movement of the diaphragm and significantly affect horn perfor-
mance.
3.
It is recommended that a pipe union be used when connecting the horn and
air valve to the air line. This will allow for easier removal of the horn and air valve
should service be required.
C.
OPERATION.
WARNING
These horns produce very loud sounds. Appropriate hearing protection
should be worn while verifying horn operation.
Operate the air valve and verify that the horn sounds. Also verify that the sound
is smooth with no distortion. Release the air valve.
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