Page 26 - WM E-Learning Handbook

Slide Topic Content Notes

If You Experience Asphyxiation  Never inhale natural gas in a
Symptoms closed environment

 Overexposure symptoms
 Shortness of breath
and/or unconsciousness
 Evacuate/get fresh
air/call 9-1-1 if necessary

Safety Practices When Servicing  Always follow manufacturer’s
NGVs procedures

 Know whether the
component or section of the
system is high pressure or
low pressure

 Turn off gas supply to
appropriate section of the
fuel system

 Depressurize the work area
and/or defuel the fuel system

 Never put a wrench on a
pressurized fitting unless you
are certain it has been
depressurized and you have
no other alternative

Depressurizing Cylinders, Valves  Follow manufacturer’s

or PRDs procedures

 Generic description of

process
 Determine which valve,

PRD and/or cylinder is to

be serviced or replaced
 Shut off the other

cylinder valves
 Use defueling procedure

to completely defuel the

affected cylinder

Technician Safety and Awareness Training for NGVs © 2018 NGVi All Rights Reserved Page 24