| Operation & Maintenance Instructions Peristaltic Pump | Troubleshooting
1. Troubleshooting
Nonconformance
Cause
Corrective measures
the pump requires too little or
nothing
wear or hardening of the pump
hose
replace pump hose
counter pressure too high
reduce counter pressure
suction level too high
mount the pump lower
contamination in the pump
hose
clean the pump hose or ex-
change it. Ascertain the cause
of contamination.
the injection point is blocked
by precipitation of carbonate
clear the blockage, if neces-
sary mount self-cleaning
injection points
the jacking power of the rolls
is too low
springs are overloaded,
replace the rotor.
the pump hose is not lying in
the middle of the track
see below
The pump hose is not lying in
the middle of the track
hose is twisted in itself
mount without tension
The pinch rollers are not
completely straight, because
the rotor is worn
replace the rotor
ball-bearing is missing, be-
cause it was forgotten during
the hose change over
mount the ball-bearing
The rotor does not turn
interrupted power supply
turn on the power supply
the motor is overloaded be-
cause the hose has hardened
replace the pump hose
defective motor
replace the motor
Pressure thrust in the hose line expanding vapour locks in the
pressure line causing flow
variations
place the line in such a way
that vapour locks can no
longer collect together
check-valve to be provided
at the pump’s pressure con-
nection.
If the interruptions cannot be corrected with the above information, it is necessary to send
the dosing pump to the factory and/or to contact our sales team for further measures.
Repair works will be carried out immediately.
