Troubleshooting - dosatron D 45 RE 3000 Manuel D'utilisation

Troubleshooting

SYMPTOM CAUSE
Motor piston
DOSATRON does Piston stalled
not start or stops
Maximum flow
exceeded.
The by-pass is either
on OFF position or
half opened
Motor piston
is damaged
Injection
Water flowing back Contaminated, worn,
into concentrate or missing suction
container valve parts
No suction of The motor piston
concentrate has stopped
Air leak (inlet) in the
suction hose
Blocked suction
hose or clogged
strainer
Missing or worn
suction valve seal
Missing or worn
plunger seal
Worn injection stem
© DOSATRON INTERNATIONAL / 44
SOLUTION
Reset piston, by hand
1. Reduce flow,
2. Check piston valves
seals to ensure correct
position
Place the by-pass lever
in the ON position
Return unit to your
service center for repair
Clean or replace them
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
SYMPTOM CAUSE
Injection
Under injection Suction of air
Dirty or worn suction
valve seal
Maximum flow
exceeded (cavitation)
Worn plunger seal
Worn injection stem
Leaks
Leaks in the vicinity Injection sleeve seal
of the fixing ring is damaged or
under the pump positioned incorrectly
body
Leaks between the Injection stem seal
adjusting nut and damaged, positioned
the blocking ring incorrectly or missing
Leaks between the Pump body seal is
upper and lower damaged, positioned
pump body incorrectly or missing
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.
© DOSATRON INTERNATIONAL / 45
SOLUTION
1. Check the tightness of
the nuts in the injection
area
2. Check suction hose
Clean or replace it
Reduce flow
Replace it
Replace it
Replace it or refit it
correctly
Replace it or refit it
correctly
Unscrew the 2 pump
body parts, clean the seal
seating, replace or change
the seal.