2.5.6 CETP Instructor Presentation Template

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Operating a Propane Dispenser to Fill
Vehicle-Mounted ASME Tanks
To safely and efficiently fill vehicle-mounted
ASME tanks, operators must be familiar with each
of the basic parts of the dispensing system,
features of ASME tanks, and the filling
procedures.

• In this module you will learn to
• Identify characteristics of propane dispensers
• Inspect the dispenser prior to propane transfer
• Identify features of ASME motor fuel tanks
• Identify features of ASME mobile fuel tanks
• Shut down and secure the dispenser
• Prevent and handle emergencies

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Characteristics of Propane Dispensers
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Characteristics of Propane Dispensers
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Characteristics of Propane Dispensers
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Characteristics of Propane Dispensers
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Characteristics of Propane Dispensers
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Propane Motor Fuel Vehicle Decal
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Vehicle Propane Motor Fuel Decal
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Features of ASME Motor Fuel Tanks
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Features of ASME Motor Fuel Tanks
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Features of ASME Motor Fuel Tanks
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Features of ASME Motor Fuel Tanks
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Features of ASME Motor Fuel Tanks
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Features of ASME Motor Fuel Tanks
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Motor Fuel Tank Filling Procedures
Step 1 Open the liquid outlet valve on the storage tank and the valve in the by-pass return line. Be sure the valve connection on the storage tank is open to the meter vapor eliminator.
Step 2 Set the propane meter to zero.
Step 3 Connect the motor fuel hose to the tank fill valve.
Step 4 Open the vent valve on the fixed liquid level gauge.
Step 5 Open the valve on the end of the hose.
Step 6 Start the pump.
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Motor Fuel Tank Filling Procedures
Step 7 When a steady white mist or fog is first emitted from the fixed liquid level gauge vent valve, this indicates the maximum permissible fill position has been reached.
Step 8 Immediately close the hose end valve
Step 9 Close the fixed liquid level gauge.
Step 10 Shut off the pump.
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Motor Fuel Tank Filling Procedures
Step 11 Slowly loosen the filler adapter to vent liquid propane trapped between the filler adapter and the motor fuel tank filler valve. Wait until propane stops venting and pressure is relieved between the adapter and the filler valve, before completely disconnecting the adapter.
Step 12 When venting has stopped, disconnect and stow the hose assembly.
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Mobile Fuel Tank Filling Procedures
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Mobile Fuel Tank Filling Procedures
Before the filling procedure is started, shut off
the service valve to eliminate the fuel supply to
the pilots of the gas appliances. Notify the
vehicle operator that you are turning the propane
fuel supply off at the service valve and verify
with him or her that appliance pilots are off.
Allow ample time to ensure pilots are
extinguished. Be sure that everyone has exited
the vehicle before beginning the filling
procedures.
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Mobile Fuel Tank Filling Procedures
Step 1 Shut off the vapor service valve on the mobile fuel tank.
Step 2 Be sure the vapor valve on the storage tank is open to provide an equalizing/return line to the meter vapor eliminator.
Step 3 Set the propane meter to zero.
Step 4 Connect the motor/mobile fuel hose to the tank fill valve.
Step 5 Open the vent valve on the fixed liquid level gauge.
Step 6 Open the valve on the end of the hose.
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Mobile Fuel Tank Filling Procedures
Step 7 Start the pump.
Step 8 When a steady white mist or fog is first emitted from the fixed liquid level gauge vent valve, this indicates the maximum permissible fill position has been reached.
Step 9 Immediately close the hose end valve.
Step 10 Close the fixed liquid level gauge.
Step 11 Shut off the pump
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Mobile Fuel Tank Filling Procedures
Step 12 Slowly loosen the filler adapter to vent liquid propane trapped between the filler adapter and the motor fuel tank filler valve. Wait until propane stops venting and pressure is relieved between the adapter and the filler valve before completely disconnecting the filler adapter.
Step 13 When venting has stopped, disconnect and stow the hose assembly.
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Shutting Down and Securing the Dispenser

• When the dispenser is not in use, or at any time
  that a qualified dispenser operator is not in
  attendance, the dispenser should be shut down and
  secured in keeping with company operating
  procedures.
• The shut down procedure should ensure that
• Dispenser operating valves are closed.
• Transfer hoses are secured in storage cabinets
  or their designated locations, and the disperser
  cabinet or fence gates are closed and locked.

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Preventing and Handling Emergencies

• Precautions in the Event of an Emergency
• Avoid becoming trapped within the dispenser area
  if there is an uncontrolled release of propane.
• Keep other people away from the area.
• Move and stay upwind of a propane leak or fire.
• NEVER enter a propane vapor cloud.
• Eliminate sources of ignition.
• Activate the plant fire/emergency notification
  system.
• Send someone to call the fire department to
  report the nature of the emergency.

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Preventing and Handling Emergencies

• Preventing Dispenser Emergencies An emergency
  exists at a dispenser if there is an uncontrolled
  release of propane, or a fire. Emergencies can
  be prevented by strictly following the safety
  rules and procedures provided in LP-gas safety
  codes and company procedures.
• Periodically inspect and properly maintain the
  components of the dispenser. Keep other people
  away from the area.
• Never fill a container that is unsafe or does not
  meet inspection criteria for continued service.
• Strictly enforce dispenser operating safety
  rules. Be polite and tactful with customers.
  Explain the safety rules and the reason for the
  rules, but do so in a firm manner if necessary
• Dont ignore obvious irregularities and abnormal
  operation conditions.

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Preventing and Handling Emergencies
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Time to See If You Got the Key Points of This
Module

• Complete the Review on page 15.
• See if you are ready for the Certification Exam
  by checking off the performance criteria on page
  16.

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