Adast Systems AdBlue V-line 47 Series, User Manual

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USER’S MANUAL V-line AdBlue
®
47xx.xxx
18
11.2. Piston flowmeter
The meter unit consists of the proper meter with integrated impulse detector. Only authorised specialists
can handle the metering unit because the meter is officially sealed. If the seals are damaged, it is
necessary to carry out an official inspection and new official sealing.
The condition of the meter (e.g. liquid leakage) shall be followed continuously and repairs shall be
performed in time. The stability of the set accuracy for the calibrated meter is at least one million dm
3
for
measured dispensed fuel without mechanical impurities. It is recommended to check the meter accuracy
after the dispensing of such fuel quantity. Even if the seals are not damaged, the meter shall be
periodically inspected and calibrated by a metrological office - once per two years at least.
Also the impulse detector should not be repaired - the meter is replaced only. The fixing of these
components is sealed by an official authority, when replaced they are sealed again the official authority.
11.3. Electromagnetic two-stage valve
It is used for two-stage closing of flow when dispensing the preselected volume. The first stage partially
closes the flow to approximately 10% of the flow rate just before the set value is achieved. The second
stage closes the flow completely. The operation of the two-level stage closing of the valve shall be
followed and prospective defect shall be repaired in time. The closing and the throttling functions are
eliminated in the service mode. The repair is performed by qualified workers. Fixing bolts of the valve
shall be regularly checked and retighten to prevent any liquid leakage.
11.4. Sight glass of the dispenser
It is used for visual inspection of the liquid flow. Possible defects of the sight glass: leakage, broken glass
and other damages. All these defects shall be repaired by a qualified worker only.
11.5. Dispensing hose
For dispensers of AdBlue
®
is used special dispensing hose meets the requirements of DIN 70070 .
One end of the dispensing hose is threaded for screwing onto the dispensing nozzle, the adapter for
connection to dispenser is on the other end. The dispensing hoses are not repaired but replaced.
11.6. Dispensing nozzle
It is a terminal part of the dispenser by means of which fuels are dispensed. The dispensing nozzle enables:

service dispensing - the rate of flow can be controlled up to its full stop by means of control lever

STOP function - the dispensing nozzle stops the flow if the tank is filled up

safety function - the dispensing nozzle stops the flow in case of unskilled handling or when the
nozzle falls out from the fuel tank filler
After both these safety actions the control lever shall be released to get it automatically back to its initial
position. The dispensing nozzle is a highly sensitive and complicated closing device. Therefore replacing is
recommended instead of repairing at the filling station. The nozzle is unscrewed from the hose adapter
while taking care not to lose the screen located in the nozzle. The screen shall be cleaned regularly
because the clogged screen may result in substantial reduction of fuel flow.
Nozzle for AdBlue
®
is a special gun fitted in the discharge pipe solenoid valve prevents refueling
media into tanks designed for fuel (diesel).
11.7. Dismantling of covers
It is carried out in required scope during installation, routine maintenance, minor repairs and modifications
of electric or hydraulic parts.
The original location of covers must be held in remounting!
Covering of hose and hydraulic modules
To access interior of the hose module for removing hoses, hydraulic pipes, cable glands, cabinets and
counter covers gun is necessary to remove the top cover of the hose module allowing eight M6 screws
located on top of the cover.
For easier access to the hose module of the dispenser advised to dismantle the still side module cover is
ATTENTION!
USE OF UNAUTHORIZED FUEL HOSE CONTAMINATION MAY (DEPRECIATION) GRANTED AdBlue
®
!!!