Mack LEU, Руководство оператора

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12 Safety Information
Inhalation
LNG/CNG is not toxic, but can cause
asphyxiation
in concentration or in enclosed
areas because it reduces the oxygen available for breathing. For this reason, methane
detectors are located in the engine compartment and inside the cab. These detectors
will trigger an alarm inside the cab if methane concentration goes above a safe level.
These detectors are always active whether the vehicle is on or off, as long as the battery
is connected and the fuse is in place and not blown. If overcome by vapor, remove the
individual from exposure and call a physician immediately. If breathing is irregular or
has stopped, start resuscitation (if trained in CPR) and administer oxygen if available.
DANGER
KEEP THE EQUIPMENT AREA
WELL VENTILATED. Although
LNG/CNG is non-toxic, it can cause
asphyxiation in a confined area without
ventilation. Any atmosphere that does
not contain enough oxygen for breathing
can cause dizziness, unconsciousness,
or even death. LNG, being colorless,
odorless and tasteless, cannot be
detected by human senses. Even though
CNG is sulfurized, the smell may
go unnoticed on some vehicles, such
as a refuse truck. Without adequate
ventilation, natural gas will displace
the oxygen and give no warning that
a non-life supporting atmosphere is
present. Store LNG/CNG in a well
ventilated area.
If vehicles equipped with an LNG engine must be parked or worked on indoors for
short periods of time, piping from the primary LNG tank vent pipe to the outside of
the building should be provided. See "Primary LNG Tank Vent Piping" at the end of
the SAFETY section. De-fueling or removal of the LNG tank(s) is recommended for
vehicles stored indoors for long periods of time.
Separate methane detector/alarm systems should be installed in facilities that
frequently house LNG/CNG vehicles, consult local codes and ordinances to ensure
compliance. In addition, handheld methane detector/alarm devices should be used
when working on LNG/CNG vehicles with non-functioning or disconnected methane
detector/alarm system and where no auxiliary methane detector/alarm system is
installed.
Note: Due to the cryogenic state of LNG fuel, it cannot be odorized, therefore, it will
not smell like CNG or pipeline gas in a home.