Cng Safety Precautions - freightliner WALK-IN VAN CHASSIS Operator's Manual

Compressed Natural Gas Fuel System
2
1
07/10/96
1. Accessory (optional)
2. Off
Fig. 8.1, Four-Position Ignition Switch
1
05/10/2001
1. Off 2. On
Fig. 8.2, Three-Position Ignition Switch
IMPORTANT: When the engine is started, it
takes a short time to build up a lubricating oil
film between the shafts and bearings, and be-
tween the pistons and cylinder walls. The oil
pressure gauge indicates any drop in lubricating
oil pressure within 15 seconds of engine startup.
See the Cummins Operation and Maintenance
Manual for minimum idle oil pressure specifica-
tions.
8.3
3
4
f601179
3. On
4. Start
2
3
f601179a
3. Start

CNG Safety Precautions

DANGER
Natural gas is highly flammable. Failure to ob-
serve the following safety precautions could lead
to the ignition of the natural gas, which could
cause serious bodily injury or death.
CNG General Safety Information
Since compressed natural gas is highly flammable, if
you should smell gas, immediately shut off all en-
gines and ignition sources. Avoid causing sparks,
and stay away from arcing switches and equipment.
Extinguish any cigarettes, pilot lights, flames, or other
sources of ignition in the area and adjacent areas.
Immediately provide extra ventilation to the area. Do
not start the engine or any other type of equipment
until the gas leak is corrected and the area cleared
of natural gas.
Natural gas is odorless before a scent is added for
safety. Natural gas is also colorless and nontoxic.
Still, at high enough concentration, natural gas can
suffocate a person simply by excluding adequate
oxygen to sustain life.
Natural gas is flammable in concentrations ranging
from 4 percent to 16 percent by volume in air.
WARNING
When bleeding the dispensing hose after filling
the tank, the handle gets extremely cold. This
may freeze the hands if appropriate safety gloves
are not used.
When filling the vehicle tanks with compressed natu-
ral gas (CNG), vent the dispensing hose before dis-
connecting it from the vehicle. The pressure in the
hose may cause a disconnected hose to become un-
controllable.
CNG storage tanks have a limited usable life-span,
due to the high pressures that they must sustain. Pe-
riodic inspections are required by law to ensure con-
tinued safety in their use.
If a tank receives an impact or has deep scratches or
gouges, it should be inspected before refilling.