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14.5.2 Environmental influences
The additional tank for AUS 32 should not be
exposed to direct sunlight for a prolonged period of
time, either during transport on a vehicle or during
storage. The container is made of a high-quality
opaque plastic. In direct sunlight it can heat up
considerably, which has a negative effect on the
quality of the urea solution and can also lead to
deformation of the container.
Protect your filling station by covering it, for
example. Deformations caused by heat do not
constitute grounds for a complaint.
Ideal storage conditions for the urea solution are
in the temperature range from -5°C to +25°C.
Above +25°C ammonia begins to outgas. In this
case, ensure that the environment is suffciently
ventilated. Below -11°C the urea solution will
freeze and the filling station can be damaged.
14.6.1
Troubleshooting
Fault
Delivery hose is leaking
The delivery nozzle does not
switch off automatically or
switches off too late
Pump is running, but little
output
White crystals or liquid in the
nozzle pocket.
14.6.2 Pump troubleshooting
See operating instructions for the pump, section 10.
14.6.3 Cleaning the filter
: :
Hose connection
9
9
Filter seal
:
:
Possible cause
Hose clamp loose
Cracks in the hose
The delivery spout is not cor-
rectly inserted into the tank
nozzle
Hoses are blocked or kinked
Air bubbles in the liquid
Filter clogged
Escaped liquid (dripping
liquid)
9
9
14.6
Maintenance
Dripping and minor leaks cannot be avoided with
urea solution. This leads to buildup of crystallised
white urea. Clean the unit, especially the delivery
nozzle, with lukewarm water if necessary. While
doing so, do not allow drinking water to get into
the container, as it does not meet the purity
requirements.
Only demineralised water can be used to clean the
inside of the container.
Maintenance of the pump, see operating
instructions for the pump, section 9.
The container and the hoses should be visually
inspected regularly, at least once a month, for
damage and leaks. Defective parts must be
replaced.
Solution
Re-tighten hose clamp with a screw-
driver.
Shorten the delivery hose up to the leak-
ing point or replace it completely.
Fully insert the delivery spout into the
tank nozzle
Check hoses
Leave the tank to stand for a few
minutes
Clean filter (see section 13.6.2)
Clean the nozzle pocket (see section
7.5)
1. Unscrew hose connection
2. Remove, clean and reinsert filter seal
3. Mount hose connection
GB
9
9
:
:
9
9
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