11 Problems and their removal
Operating manual mzr-11557 Ex
Last update: March 2019
Technical data subject to change without prior notice!
41
Disturbance
Cause
Solution
manufacturer for cleansing and repair.
The motor surface or the motor interior are
too hot.
High temperature indicator in the drive is on.
The motor has been shut down by the
thermistor. Return the pump to the
manufacturer.
18 The pump is noisy
Wear out of the pump or defective
components
Do not continue to operate the pump, return it
to the manufacturer for maintenance.
19 Over current
Particles in the delivered liquid
Rinse the pump.
The pump operates with difficulty.
Dosing needle is damaged. Needle should be
cleansed, flushed or exchanged.
Tubing on the delivery side, dosing needle or
non-return valve is blocked. Cleanse, flush or
exchange the components.
Deposits inside the pump.
Flush the pump. If necessary return the pump
to the manufacturer.
table 17
Problem shooting - causes and solutions.
!
If a disturbance that has not been mentioned in the above list, or that makes
the use of the micro annular gear pump unsafe appears, please stop the
operation of the pump without delay and contact the manufacturer.
