Realax ISI 10, Operating Instructions Manual

Page: 33 / 60

33
Operating instructions Peristaltic Pump ISI Series
PROBLEM POSSIBLE CAUSE SOLUTION
Short
operational
lifetime of
the hoses
Chemical exposure
Check the compatibility of the hose with
the liquid being conveyed, the cleaning
fluid and the lubricant
High pump speed Reduce pump speed
High conveying temperature Reduce product temperature
High operating pressure Reduce operating pressure
Pump cavitation Check the suction conditions
Abnormal elevation of
temperature
Check number of shims
Unsuitable lubricant Use realax lubricant
Insufficient quantity of grease Reapply lubricant
Pump hose
pulled into
the pump
housing
High inlet pressure (> 3 bar) Reduce inlet pressure
Pump hose filled with deposits Clean or replace the pump hose
Holder (press connection)
insufficiently tightened
Re-tighten holder (press connection)
Insufficient grease Reapply lubricant
The pump
does not
start up
Insufficient motor
performance
Check motor and replace if necessary
Insufficient output from
frequency converter The frequency converter must match
the motor
Blockage in the pump
Check voltage. Start occurs at minimum
10 Hz
Check if the suction or discharge side is
blocked. Rectify blockage