WDT DUFTDOS-0-Compact, Operating Instructions Manual

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Fragrances dosing, type DUFTDOS-0-Compact
Index: 01 Change date: 01/12/2017 Operating instructions no.: BA DW 017-01 Duftdos-0-Compact EN 17630.docx Page 15 of 21
Replace the hose at the hose holder
ATTENTION !
The new hose must have the same colour and size as the hose removed. The hose may
not be twisted after insertion! The markings must be in front and in the middle (see
image).
1. Removing the hose set, see Section 7.1.1 “ Check / replace hose set “.
2. Carefully cut open the hose ties with a sharp knife or pliers in order to exchange the dosing hose! Do not
damage the hose nipples!
3. Push the new dosing hose onto the hose nipples, so that the markers at the hose ends are in front. This
ensures that the hose is not twisted.
4. Fasten the hose ends with the hose ties and cut off the protruding parts of the hose ties.
5. Install the hose set, see Section 7.1.1 “ Check / replace hose set “.
Figure 11, Hose set spare parts
Legend
16 Hose, black
15 Hose holder
31 Marking
32 Plier (2x)
7.1.2 Check the dosing valve
Some fragrance concentrates create deposits in the dosing line and the dosing valve. In this case the fragrances
dosing may be obstructed.
Check the dosing valve each 6 months or when necessary
1.
Upon refilling the fragrance concentrate, some air of the pump must be sucked.
2. During the working of the fragrance pump, observe the air bubble.
3. The fragrance dosing system is in order when the air bubble is transported in the suction/pressure hose. If
the air bubble is moved only to and fro, the dosing valve is obstructed and must be cleaned.
Cleaning the dosing valve
1.
Loosen the dosing hose from the dosing valve.
2. Screw out the dosing valve.
3. Wash the dosing valve with warm water or rinse it with ethyl alcohol.
4. If these steps are not successful, exchange the valve.
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