dosatron D25+ Series, Руководство пользователя, Страница: 15 / 22

©
DOSATRON INTERNATIONAL S.A.S / 29
©
DOSATRON INTERNATIONAL S.A.S / 30
EN
Change the O-ring of the dosing pump body:
- Release the retaining ring by pulling the ears
apart (Fig. 21) .
- Extract the dosing locker by sliding it
towards the bottom of the dosing pump
body.
- Free the dosing pump body by pushing it
through the dosing body (Fig. 21)
- Change the dosing pump body O-ring
following the same procedure described
above.
- Refit the dosing pump body using the
aligning pins (Fig. 22)
- Refit the dosing locker along the dosing
pump body taking care to align the aligning
pins (Fig. 23)
- Refit the retaining ring so that it sits properly
in its groove. (Fig. 24)
- Finish by refitting the suction valve and its
nut. (Fig. 25)
DISMANTLING/REFITTING THE DOSING PISTON
Before performing any maintenance on the DOSATRON, it is essential to refer
to the § PRECAUTIONS. Before dismantling the DOSATRON, and to avoid
any contact with the dosed products, operate the DOSATRON by aspirating
clear water to rinse the dosing pump.
- Close the water inlet and reduce the pressure to zero by opening the fast
priming valve situated downstream of the Dosatron.
- Dismantle the dosing part, following the instructions in the § DISMANTLING/
REFITTING THE DOSING PART. (Fig. 26)
- Turn the dosing piston through a quarter turn anti-clockwise to unlock it and
release it from the motor piston. (Fig. 27)
- Refit in the reverse order.
1
2
90°
Fig. 21
Fig. 22 Fig. 23
Fig. 24 Fig. 25
Fig. 26 Fig. 27