Troubleshooting - dosatron D 8 RE 3000 Manuel D'utilisation

Troubleshooting

SYMPTOM
Motor piston
Injection
Water flowing back
into concentrate
container
No suction of
concentrate
CAUSE
Piston stalled
Air has not been
bled from unit
Maximum flow
exceeded.
Motor piston
is damaged
Contaminated, worn,
or missing check
valve parts
The piston motor
has stopped
Air leak (inlet) in the
suction tube
Blocked suction
tube or clogged
strainer
Missing or worn
suction check valve seal
Missing or worn
plunger seal
Worn injection stem
©
DOSATRON INTERNATIONAL / 46
SOLUTION
Reset piston, by hand
Bleed air from unit,
by bleed button
1. Reduce flow,
restart unit
2. Unscrew the bell.
Take off the piston and
check piston valves
seals to ensure correct
position
Return unit to your
service center for repair
Clean or replace it
See Motor piston section
Check the tightness bet-
ween nut and suction hose
Clean or replace it
Clean or replace it
Clean or replace it
Replace it