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R134a must not be mixed with air before being pressurized. When mixed with large quantities of air and pressurized
R134a becomes combustible.
Refrigerant evaporates quickly and can displace oxygen in the work area, and can cause suocation. If a leak occurs
avoid breathing refrigerant vapor and thoroughly ventilate work area before continuing service to HVAC system.
Federal and state laws require that refrigerant be recovered and recycled. Refrigerant must be recovered from
system with authorized recommended equipment before any work can be performed on the unit. Always use
approved recycling equipment to prevent accidental discharge.
Do not use parts other than those specied for the system being serviced.
Accidental and intentional introduction of liquid contaminants to the environment is a violation of State, Federal,
and Military regulations. Store, install, and dispose of containers in accordance with standard operating procedures.
Carbon Monoxide
Carbon Monoxide is a dangerous gas that deprives the body of oxygen and causes suocation. Carbon Monoxide is
colorless and odorless, but can be detected with a carbon monoxide detector. To avoid carbon monoxide poisoning
follow these precautions:
• Do not let engine idle for long periods of time. If it is necessary to the run engine indoors during vehicle
maintenance use proper ventilation equipment to exhaust gases outside
• Do not operate personnel heater in enclosed area without proper ventilation
• Do not sleep in vehicle with heater on or engine idling
• Notify Fleet Maintenance if exhaust fumes are detected in crew compartment of vehicle while operating
Be aware at all times for exhaust odors and signs of exposure to carbon monoxide such as headache, dizziness,
and loss of muscular control, apparent drowsiness, and coma. Contact your safety personnel for appropriate safety
precautions when in contact with carbon monoxide.
Brakes
Use Tow/Haul for constant stop and go, short haul, and steep grade operation.
Do not park vehicle on longitudinal slopes greater than 30 Degrees.
Wheels and Tires
If tire air pressure is lost do not exceed 25MPH while driving on Run Flats.
Wheel and tire assemblies are heavy; do not attempt to li wheel or tire assemblies without assistance. Be sure to
wear the appropriate PPE while working on wheel assemblies.
Ensure vehicle is parked on a at level surface before removing Wheel/Tire assemblies. So or uneven ground
could result in jack or jack stands sinking.
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