Checking In The Injection Assembly; Checking The Dosing Seals; Cleaning And Re-Assembling The Suction Valve Seal - dosatron D132 GREEN LINE Série Manuel D'utilisation

CHECKING IN THE INJECTION ASSEMBLY (with pressure off)
Please refer to the drawings of the different models at the end of this manual
- Change the seals once a year.
- Turn off the water supply and allow the pressure to drop to zero.
- Open the D132GL unit (Fig. 6).
- Take off the suction tube of product (Fig. 17).
- Unscrew the retaining ring (Fig. 18).
- Pull downwards to remove the injection assembly (Fig. 19).
- Change the seals, the suction valve and the barbed fitting.
- Re-assemble in the reverse order to the above by hand.
- Close the D132GL unit (Fig. 7).
Fig. 17 Fig. 18

CHECKING THE DOSING SEALS

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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Fig. 19
Fig. 16

CLEANING AND RE-ASSEMBLING THE SUCTION VALVE SEAL

(with pressure off)
- Turn off the water supply and allow the pressure to drop to zero.
- Open the D132GL unit (Fig. 6).
- Unscrew the nut and pull downwards
to remove the suction
tube (Fig. 20).
- Unscrew and take off the
suction valve retaining nut (Fig.
21), pull out the valve assembly,
dismantle the valve and
thoroughly rinse the separate
components in clean water.
- Put the valve components in
the order shown in the diagram
(Fig. 22).
- Re-assemble the components
in the reverse order to the
dismantling process.
- Close the D132GL unit
(Fig. 7).
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Fig. 20 Fig. 21 Fig. 22