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Important Safety Information
Page 4
MDE-4770 Tribrid Card Reader Installation Manual · June 2008 
Important Safety Information
This section introduces the hazards and safety precautions 
associated with installing, inspecting, maintaining or servicing 
this product. Before performing any task on this product, read 
this safety information and the applicable sections in this 
manual, where additional hazards and safety precautions for 
your task will be found. Fire, explosion, electrical shock or 
pressure release could occur and cause death or serious 
injury, if these safe service procedures are not followed. 
Preliminary Precautions
You are working in a potentially dangerous environment of 
flammable fuels, vapors, and high voltage or pressures. Only 
trained or authorized individuals knowledgeable in the related 
procedures should install, inspect, maintain or service this 
equipment.
Emergency Total Electrical Shut-Off
The first and most important information you must know is 
how to stop all fuel flow to the pump/dispenser and island. 
Locate the switch or circuit breakers that shut off all power to 
all fueling equipment, dispensing devices, and Submerged 
Turbine Pumps (STPs). 
 
Total Electrical Shut-Off Before Access
Any procedure that requires access to electrical components 
or the electronics of the dispenser requires total electrical 
shut off of that unit. Understand the function and location of 
this switch or circuit breaker before inspecting, installing, 
maintaining, or servicing Gilbarco equipment.
Evacuating, Barricading and Shutting Off
Any procedure that requires access to the pump/dispenser or 
STPs requires the following actions:
• An evacuation of all unauthorized persons and vehicles 
from the work area 
• Use of safety tape, cones or barricades at the affected 
unit (s)
• A total electrical shut-off of the affected unit (s)
Read the Manual
Read, understand and follow this manual and any other 
labels or related materials supplied with this equipment. If you 
do not understand a procedure, call a Gilbarco Authorized 
Service Contractor or call the Gilbarco Support Center at      
1-800-800-7498. It is imperative to your safety and the safety 
of others to understand the procedures before beginning 
work.
Follow the Regulations
Applicable information is available in National Fire Protection 
Association (NFPA) 30A; Code for Motor Fuel Dispensing 
Facilities and Repair Garages
, NFPA 70; National Electrical 
Code (NEC)
, Occupational Safety and Hazard Association 
(OSHA) regulations and federal, state, and local codes. All 
these regulations must be followed. Failure to install, inspect, 
maintain or service this equipment in accordance with these 
codes, regulations and standards may lead to legal citations 
with penalties or affect the safe use and operation of the 
equipment.
Replacement Parts
Use only genuine Gilbarco replacement parts and retrofit kits 
on your pump/dispenser. Using parts other than genuine 
Gilbarco replacement parts could create a safety hazard and 
violate local regulations.
Safety Symbols and Warning Words
This section provides important information about warning 
symbols and boxes.
Alert Symbol
 
 
This safety alert symbol is used in this manual and 
on warning labels to alert you to a precaution which must be 
followed to prevent potential personal safety hazards. Obey 
safety directives that follow this symbol to avoid possible 
injury or death.
Signal Words
These signal words used in this manual and on warning 
labels tell you the seriousness of particular safety hazards. 
The precautions below must be followed to prevent death, 
injury or damage to the equipment:
DANGER: Alerts you to a hazard or unsafe practice 
which will result in death or serious injury.
WARNING: Alerts you to a hazard or unsafe practice 
that could result in death or serious injury. 
CAUTION with Alert symbol: Designates a hazard or 
unsafe practice which may result in minor injury.
CAUTION without Alert symbol: Designates a hazard 
or unsafe practice which may result in property or 
equipment damage.
Working With Fuels and Electrical Energy
Prevent Explosions and Fires
Fuels and their vapors will explode or burn, if ignited. Spilled 
or leaking fuels cause vapors. Even filling customer tanks will 
cause potentially dangerous vapors in the vicinity of the 
dispenser or island.
The EMERGENCY STOP, ALL STOP, and 
PUMP STOP buttons at the cashier’s station 
WILL NOT shut off electrical power to the pump/
dispenser. This means that even if you activate 
these stops, fuel may continue to flow 
uncontrolled. 
You must use the TOTAL ELECTRICAL SHUT-
OFF in the case of an emergency and not the 
console’s ALL STOP and PUMP STOP or 
similar keys.
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WARNING
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