Ventilation
Hydrogen gas is generated in the charging cycle of batteries and can be explosive in concentrations as low as
4%.
Ventilation is essential during the charging process because of the flammable hydrogen gas which is emitted.
The amount of hydrogen gas emitted depends on a number of factors such as the condition of the batteries, the
output rate of the charger and the amount of time the batteries are required to be on charge.
Hydrogen emissions are generally considered to be within the area of 10 to 20 cubic litres per vehicle charge.
Because of the highly volatile nature of hydrogen gas and its tendency to rise and accumulate in pockets in the
ceiling, a minimum of 5 air changes per hour is required.
The controlling party should consult applicable fire and safety codes for the specific ventilation levels required as
well as the use of explosion proof electrical apparatus.
Never charge a vehicle in an area that is subject to spark or flame. Pay particular attention to natural gas or
propane water heaters and furnaces.
Always use a dedicated circuit for each individual battery charger.
Chargers must be operated in accordance with manufacturer’s recommendations or applicable electrical
code (whichever is higher).
Maintenance and storage areas should be properly ventilated in accordance with applicable fire codes and
ordinances to avoid fire hazards.
Preventative Maintenance
It is recommended that a scheduled inspection and maintenance program be established for each vehicle.
Such a program is a valuable tool to ensure the safe vehicle operation of the vehicle, thereby assisting in the
prevention of accidents.
Parts and Materials
Only genuine EMC replacement parts and materials should be used.
Operator Qualifications
Only persons who possess a valid driver’s license should be authorized to operate the vehicle.
Lifting the vehicle
TOOL LIST QTY. REQUIRED
Floor Jack 1
Jack Stands 4
Chocks 4
Some servicing operations may require the front wheels, the rear wheels or the entire vehicle be raised.
WARNING!
To reduce the possibility of severe injury or death from a vehicle falling from a jack:
•
Be sure the vehicle is on a firm and level surface.
•
Never get under a vehicle while it is supported by a jack
•
Use jack stands and test the stability of the vehicle on the stands
•
Always place chocks in front and behind the wheels not being raised
•
Use extreme caution during the lifting process as the vehicle will be extremely unstable
•
To raise the entire vehicle:
-
Install chocks in front and behind each wheel
-
Centre the jacks under the rear frame cross member
-
Raise the vehicle enough to place a jack stand under the outer ends of the rear axle
-
Lower the jack and test the stability of the vehicle on the two jack stands
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General