26
OIC 12en Edition 08/2016
Operating Instructions
Safety instructions
Servicing
Servicing
Safety instructions
Required maintenance
The service life of the pump depends to a great extent on the operating conditions. If the operating limits
are observed, the pump has a service life of many years.
Signs of progressive wear of individual pump elements:
Tab. 1 Check table for required maintenance
1. Check the pump visually and acoustically every four weeks.
2. Check for signs of wear as listed in the table above and eliminate the cause.
Maintenance schedule
Tab. 2 Maintenance schedule
Observe the following safety instructions at all the work:
► All the work may only be carried out by authorized qualified personnel.
► Wear protective equipment during all the work.
► Switch off the motor and secure it against being switched back on.
► Before beginning work, let the pump cool down to the ambient temperature.
► Ensure that the pump is depressurized.
► Collect the emitted pumped liquid safely and dispose of it in an environmentally compatible man-
ner.
► Also observe the general drawings during all the work on the pump, see "General drawings",
Finding
Cause
Elimination
Increased running noises
Incipient damage to bearing
Replace the bearing.
Increased leaking
Incipient damage to seal
Replace the shaft seal.
Deposits on the seal
Low-volatile liquids
Clean the seal.
Increased play in the shaft cou-
pling
Advanced wear of the coupling
intermediate ring
Remove coupling intermediate
ring.
Reduction in the delivery rate or
pressure under constant opera-
ting conditions
Advanced wear of screws and
housing
Replace the pump.
Component
Activity
Interval
Pump
□
Clean
□
Before every liquid change
see "Cleaning the pump", page 27
Ball bearing
□
Lubricate
□
CLC 55: 7500 operating hours
□
CLC 550: 6000 operating hours
see "Lubricating the ball bearings",
page 29
□
Replace in the factory
□
After 20,000 operating hour
Radial shaft seal
PTFE grease
□
Lubricate
□
1000 operating hours
see "Lubricating the radial shaft seal",
page 30
Quench liquid:
□
Check filling level
□
Refill
□
3000 operating hours
□
When necessary