Maintenance; Recommendations; How To Drain The Dosatron; Cleaning The Water Filter - dosatron 40 GPM Manuel D'utilisation

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 : § CHAN-
GING SEALS IN THE INJECTION
ASSEMBLY).
Thoroughly rinsing all the elements
of the dosing part with water and
re-assembling them after having previously lubri-
cated the seal (Fig. 12) with a silicone lubricant, in
the case of difficulty in re-fitting.
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
< 40° C [104° F] 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.
- Remove the bell and the motor piston, see § CLEANING THE WATER FILTER.
- 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
(Fig.14-N next page).
© DOSATRON INTERNATIONAL / 44
Fig. 12
O-ring
water
CLEANING THE WATER FILTER 500 microns - 32 mesh
Frequency: once per month depending on use.
To remove the filter
- Close the valve upstream
of the DOSATRON and
allow the pressure to
drop to zero.
Before removing the
filter, please follow
the dismantling
instructions at §
CHANGING THE
MOTOR
PISTON.
- Remove the injection
assembly.
- Unscrew the bell-housing by
hand and remove it (Fig. 13).
- Remove the motor piston (Fig. 14-M).
- Remove the filter (Fig. 14-F).
- Remove the seal (Fig. 14-N).
- Clean the filter and the seal with clean water.
To refit the filter
- Before re-assembly make sure that the seating area of the filter and seal (Fig.
14-N) in the lower pump body and the bell-housing are clean. If necessary the
seal has to be replaced.
- Apply silicone grease to the thread on the body.
- Then proceed in reverse order to the above.
Important : in all cases tightening must be done by hand.

INTERNATIONAL CONVERSIONS

Principle : Setting at 1% ⇒ 1/100 = 1 part of concentrate for 100 parts of
water.
Ex. : Setting at 2% ⇒ 2/100 = 2 parts of concentrate for 100 parts of
water.
Ratio ⇒ 1/50.
© DOSATRON INTERNATIONAL / 45
Fig. 13
M
Fig. 14
F
N