©
DOSATRON INTERNATIONAL S.A.S /
27
©
DOSATRON INTERNATIONAL S.A.S /
28
US
Maintenance
RECOMMENDATIONS
1 - When using soluble products
to be made up into solutions, we
recommend the periodic dismantling
of the entire dosing part (see : §
CLEANING AND REFITTING THE
SUCTION VALVE, § 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 silicone lubricant, in
the case of difficulty in re-fitting.
2 - Before putting the DOSATRON
into operation after a non-use
period, remove the motor piston and
soak it into lukewarm water
< 104° F [40° C] overnight. 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 the pressure drop to zero.
- Remove the injection assembly, see § CHANGING THE MOTOR PISTON.
- Remove the bell and the motor piston.
- Disconnect the water inlet and outlet fittings.
- Remove the lower pump body from the mounting bracket and empty any
remaining water.
- The DOSATRON can now be reassembled, having first cleaned the seal.
5
%
Fig. 10
O-ring
FITTING THE SUCTION TUBE
Fig. 11
Fig. 12
If the DOSATRON has already been
used, please imperatively
refer to §
PRECAUTIONS.
- Unscrew the nut
(Fig. 11)
at the
bottom of the injection assembly and
put it onto the tube.
- Push the tube onto the barbed
fitting as far as it will go and screw up
the nut
by hand (Fig. 12)
.
5
%
5
%
CHANGING THE MOTOR PISTON (with pressure off)
- Turn off the water supply and allow
the pressure to drop to zero.
- Unscrew and remove bell-housing by
hand
(Fig. 13)
.
- Remove the motor piston
(Fig. 14)
by pulling it up.
- Rod and plunger piston are fixed
to the motor piston and taken out
simultaneously.
- Change and reassemble in the
reverse order to the above.
- Refit the bell-housing (take care not
to damage its seal) and tighten by
hand.
Fig. 13
Fig. 14
