Maintenance; Recommendations; How To Drain The Dosatron - dosatron D 20 S Manual De Utilización

Maintenance

RECOMMENDATIONS

1 - When using soluble products to be
made up into solutions, we recom-
mend the periodic dismantling
of the entire dosing part (see :
§ CHANGING SEALS IN THE
INJECTION ASSEMBLy).
thoroughly rinsing all the elements
of the dosing part with water and re-
assembling them after having previously
lubricated the seal (Fig. 10) with a sili-
cone lubricant, in the case of difficulty in
re-fitting.
O-ring
2 - an air inlet, an impurity or a seal's failure can
interrupt the dosing function ; periodically check
out that the concentrate is correctly drawn up, thus
incorporated into the water.
3 - Before putting the Dosatron into operation after
a non-use period, remove the motor piston and
soak it into lukewarm water < 40° C [104° F] over- Fig. 10
night. this helps to dissolve any deposits which
may have dried onto the piston motor.
HOW TO DRAIN THE DOSATRON (in case of freezing temperature)
- turn off the water supply and let to the above by hand.
the pressure drop to zero.
- screw the bypass button into the
median position.
- Remove the injection assembly.
- Disconnect the water inlet and
outlet fittings.
- also unscrew the bleed screw
(Fig. 11-P), remove it and let the
water flow out.
P
Fig. 11
- Re-assemble in the reverse order
©
DosatRoN INteRNatIoNaL / 45