Volvo Penta D13 Operator's Manual page 27

Presentation
AUS/DEF Tank
IMPORTANT:
Dirt/dust, oil, greases, detergents and any chemicals
and natural products must be prevented from entering
the AUS/DEF tank. The system will be damaged if dust
or dirt enters the tank, clogging the filters in the dosing
system. Keep the tank clean at all times.
AUS/DEF is stored in a separate tank.
There is a fitting in the tank that comprises a
temperature sensor (1), a quality sensor (2) and a filter
(3). The filter on the suction line prevents any particles
from circulating through the system and causing
disruptions. The filter must be checked and cleaned as
necessary.
There is a drain plug (4) on the bottom of the tank so
that the solution can be emptied when necessary, e.g.
for cleaning. The tank is fitted with a breather to
equalize pressure changes.
The AUS/DEF tank configuration that consists of a bulk
tank (5) and a day tank (3) has a filter (1) and a pump
(4) that feeds the AUS/DEF in between the two tanks.
A level sensor (2) prevents overfilling for the day tank.
47710406 10-2018 © AB VOLVO PENTA 25