International Conversions; Fitting The Suction Tube; Adjusting The Injection Rate; Changing The Motor Piston - dosatron GREEN Serie Manual Del Usuario

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.

FITTING THE SUCTION TUBE

If the DOSATRON has already been
used, please imperatively refer to §
PRECAUTIONS.
- Unscrew the nut (Fig. 8) 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 on the
nut by hand (Fig. 9).
ADJUSTING THE INJECTION RATE (with pressure off)
IMPORTANT ! Use no tools.
Adjustment must be made when there is no pressure in the DOSATRON.
- Turn off the water supply and allow the pressure to drop to zero.
- Unscrew the locking ring (Fig. 10).
- Screw or unscrew the adjusting nut in order to line up the 2 peaks of the
eyelet with the desired ratio on the scale (Fig. 11).
- Tighten the locking ring (Fig. 12).
Fig. 10
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Fig. 8 Fig. 9
Fig. 11 Fig. 12
CHANGING THE MOTOR PISTON (with pressure off)
Fig. 14
%
5
Fig. 13
%
5
CHANGING SEALS IN THE INJECTION ASSEMBLY (with pressure off)
Frequency : Once per year.
IMPORTANT ! Use no tool or metallic utensils
ADVICE: Before dismantling any part of the injection assembly it is
advisable to operate the DOSATRON, injecting clean water so as to rinse
through the injection system. In this way, risks of contact with concentrated
solutions in the injection assembly are minimized.
During any such intervention, wear protective eyewear and gloves !
METHOD OF REMOVING SEAL
Fig. 15 : Between finger and thumb, pinch the component and the seal ;
push towards one side to deform the seal.
Fig. 16 : Increase the deformation to grip the part of the seal thus exposed
and pull it out of its groove.
Clean the seal seating without any tools.
Refitting is done by hand.
It is very important that the seal is not twisted once in place as this would
impair its efficiency.
Fig. 15
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DOSATRON INTERNATIONAL / 54
- Turn off the water supply and allow
the pressure to drop to zero.
- Open the D30GL unit (Fig. 6).
- 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.
- Close the D30GL unit (Fig. 7).
Fig. 16