Changing Seals In The Injection Assembly; Changing The Motor Piston - dosatron D 15 F 2 Gebrauchsanweisung

CHANGING SEALS IN THE INJECTION ASSEMBLY (cont...)
CLEANING AND REFITTING THE SUCTION VALVE
E
N
T
Fig. 16 Fig. 17
- Turn off the water supply and allow the pressure to drop to zero.
- Unscrew the nut (Fig. 16-E) and pull downwards to remove the suction
hose (Fig. 17-T).
- Unscrew and remove the nut (Fig. 17-N).
- Pull downwards to remove the suction valve assembly (Fig. 17).
- Rinse copiously the different parts with clean water, re-assemble them
(Fig. 18).
- Put the valve back (Fig. 18-P) in the injection stem (Fig. 18-D), push it in
the back.
- Check that the return spring is working.
- Re-assemble in the reverse order to the above by hand.
NOTE : For IE models, remove the external injection hose. See
CONNECTING THE EXTERNAL INJECTION p42.
© DOSATRON INTERNATIONAL / 44
D
P
Fig. 18
CHANGING THE MOTOR PISTON (with pressure off)
- Turn off the water supply and allow the pressure to drop to zero.
- Take off the suction hose of product (Fig. 19 A), and the external injection
hose for IE model.
- Unscrew the injection part by hand or by means of a long cruciform screw-
driver, according to the dispenser type (Fig. 19 B).
- Pull downwards to remove the injection part (Fig. 19 C).
Fig. 19
A B C
Models
D 15 F 2 - D 100 R / D 128 R-
D 310 RE
- Unscrew the top cap
by hand (Fig. 20-C)
and remove it.
C
- Remove the motor
piston (Fig. 21-M) by
pulling it up.
- Change and reassem-
ble in the reverse order
to the above.
- Refit the top cap (take
care not to damage its
seal) and tighten by
hand.
© DOSATRON INTERNATIONAL / 45
A B C
Models
D 15 F 3 - D 200 RE + IE -
D 400 RE + IE - D 310 RE IE
M
Fig. 20
Fig. 21