12
13
After connecting to the hose assembly, an
operational test shall be performed. It is essen-
tial to examine that the vent coupling and hose
connector are tight under pressure and do not
leak – e. g. by external application of foaming
agents.
NOTE : Pressurise system gradually while
checking for leaks.
Do not use pressurised water.
Always put back the vent coupling into the
holder.
ATTENTION: Do not drop.
Do not leave on the floor.
OPERATING INSTRUCTIONS
The fuelling operator must be
fully trained in the safe opera-
tion of this vent coupling in
accordance with local regula-
tion of the local jurisdiction.
Please follow any additional
or deviating operating
instructions displayed at
the dispenser.
Turn off vehicle engine.
Always wear your personal
protective equipment
(
see under 'Safety' ).
If
pressure within the
vehicle's tank >10 bar
,
it needs to be vented.
Trucks with separate
venting interface need
to be vented with the
VC-LNG before the
refuelling process.
Connect the grounding cable
from the station to the LNG
tank or vehicle.
Clean valve seat with compres-
sed air. Moisture, ice and dirt
must be completely removed.
Use compressed air to clean all
coupling parts carefully after
the venting process.
Put vent coupling back into
dispenser coupling holder.
Start refuelling. For operating
instructions see manual of
nozzle N-LNG.
Align vent coupling to the vent
valve and couple it with a rotary
movement.
Do not tilt the vent coupling
and never use force to push
vent coupling onto the valve
seat
.
Wait until pressure in the tank
has been released before re-
fuelling process can be started.
After releasing the pressure of
the tank uncouple the vent
coupling with opposite rotary
movement.
Now clean the vent coupling
with compressed air. Comple-
tely remove moisture, ice and
dirt before coupling the vent
coupling to the valve seat.
Check for visual damage, exces-
sive wear and leakage.
Do not operate when vent coup-
ling or valve seat are damaged.
Note
:
Before starting the refuelling
process, please check if the
truck has a seperate venting
interface. If so, please follow
the instructions below.
Additionally, observe the
information of the vehicle's
manual.
ADAPTERS
The use of adapters is strictly prohibited.
TROUBLESHOOTING
•
Impurities
Ice or other contaminants may accumulate in the vent coupling. Condensed water around
the valve seat can freeze during the venting process and cause malfunctions. It is therefore
essential to thoroughly clean the vent coupling and the valve seat with compressed air before
and after venting.
Summary of Contents for VC-LNG
Page 9: ...16...
