©
DOSATRON INTERNATIONAL /
58
EN
© DOSATRON INTERNATIONAL /
57
( 8)
CLEANING AND RE-ASSEMBLING THE SUCTION VALVE SEAL
- Turn off the water supply and allow the pressure to drop to zero.
- Unscrew the nut and pull downwards to remove the suction tube
(Fig. 15).
- Unscrew and take off the suction valve retaining nut (Fig. 16), pull
out the valve assembly, dismantle the valve and thoroughly rinse the
separate components in clear water.
- Re-assemble the components in the order and the plan position
(Fig. 17).
CHANGING SEALS IN THE ACTUATOR ASSEMBLY
- Wear protective eyewear and gloves.
- Rinse the DOSATRON and the injection areas by injecting clean
lukewarm water.
- Turn off the water supply and allow the pressure to drop to zero.
- Take the DOSATRON out of the installation.
- Unscrew the six screws
(Fig. 18-J)
, dismantle the actuator assembly
(Fig. 18-K) and transfer parts
(Fig. 18-L).
- Change out the seals
(Fig. 18-M)
.
- Reassemble in the inverse order by hand by respecting the upward
position of the plunger piston and the actuator as shown
(Fig.18-N)
.
Fig. 18
J
M
K
M
L
N
Tightening torque
2.5 N.m[22.12 in.lbf]
Fig. 15
Fig. 16
Fig. 17
