dosatron D 8 RE 2 - Troubleshooting

©
DOSATRON INTERNATIONAL / 47
©
DOSATRON INTERNATIONAL / 47
EN
©
DOSATRON INTERNATIONAL / 46
Troubleshooting
SYMPTOM CAUSE SOLUTION
Motor piston
Piston stalled Reset piston, by hand
Air has not been Bleed air from unit,
bled from unit by bleed button
Maximum flow 1. Reduce flow,
exceeded. restart unit
2. Unscrew the bell.
Take off the piston and
check piston valves
seals to ensure correct
position
Motor piston Return unit to your
is damaged service center for repair
Injection
Water flowing back Contaminated, worn, Clean or replace it
into concentrate or missing check
container valve parts
No suction of The piston motor See Motor piston section
concentrate has stopped
Air leak (inlet) in the Check the tightness bet-
suction tube ween nut and suction hose
Blocked suction Clean or replace it
tube or clogged
strainer
Missing or worn Clean or replace it
suction check valve seal
Missing or worn Clean or replace it
plunger seal
Worn injection stem Replace it
SYMPTOM CAUSE SOLUTION
Injection
Under injection Suction of air 1. Check the tightness of
the nuts in the injection
area
2. Check suction tube
Dirty or worn check Clean or replace it.
valve seal.
Maximum flow Reduce flow
exceeded (cavitation)
Worn plunger seal Replace it
Worn injection stem Replace it
Leaks
Leaks in the vicinity Injector sleeve seal Replace it
of the fixing ring is damaged or
under the body positioned incorrectly
housing
Leaks between the Injector stem Replace it
setting sleeve and seal damaged,
the blocking ring positioned incorrectly
or missing
Leaks between the Cover seal perished, Unscrew the bell,
body and the cover incorrectly fitted clean the seal seating,
or absent replace or change the seal.
Position correctly
the bell.
THE MANUFACTURER
DECLINES ALL RESPONSIBILITY IF THE DOSATRON
IS USED IN CONDITIONS THAT DO NOT CORRESPOND
TO THE OPERATING INSTRUCTIONS AS INDICATED
IN THIS MANUAL