Changing Seals In The Injection Assembly - dosatron D 20 S Manual De Utilización

CHANGING SEALS IN THE INJECTION ASSEMBLy (with pres-
sure 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. 14 : Between finger and thumb, pinch the component and the
seal ; push towards one side to deform the seal.
Fig. 15 : 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. 14
Fig. 15
©
DosatRoN INteRNatIoNaL / 47