Realax APY, Operating Instructions Manual

Page: 27 / 40

Operating instructions Peristaltic Pump APY Series
27
PROBLEM POSSIBLE CAUSE SOLUTION
Short
operational
lifetime of
the hoses
Chemical exposure
Check the compatibility of the tube 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 rollers fast mounting
Unsuitable lubricant Use realax lubricant
Insufficient quantity of grease Reapply lubricant
Tube pulled
into the
pump
housing
High inlet pressure (> 0.5 bar) Reduce inlet pressure
Tube filled with deposits Clean or replace the tube
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
Blockage in the pump
Check if the suction or discharge side is
blocked. Rectify blockage