KRAL CKC, Руководство по эксплуатации

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12 Servicing
11.4 Maintaining the pump
11.4 Maintaining the pump
Personnel qualification:
o
Fitter
Personal protective equipment:
o
Work clothing
o
Protective gloves
o
Safety boots
o
Face protection
WARNING
Risk of injury through emitted pumped liquid.
Pumped liquids can be hot, poisonous, combustible and caustic.
► Wear personal protective clothing during all the work. Ensure face protection.
► Collect any discharging pumped liquid safely and dispose of it in an environmentally compatible
manner in accordance with the applicable local regulations.
1. Check the pump visually and acoustically every four weeks.
2. If there are signs of wear, eliminate the cause Ä Servicing, Page 27.
12 Servicing
12.1 Dangers during servicing
The following safety instructions must be observed strictly:
o Have all work carried out only by authorized qualified personnel.
o Before beginning work on the pump ensure that the electrical power supply is deenergized and is
secured against being switched back on.
o Before beginning work, let the pump unit cool down slowly to the ambient temperature. Avoid
rapid temperature changes.
o
Pumped liquids can be hot, poisonous, combustible and caustic. Use corresponding protective
equipment.
o
Ensure that the pump is depressurized and that shut-off devices are not operated uncontrolled.
o
Collect any discharging pumped liquid safely and dispose of it in an environmentally compatible
manner in accordance with the applicable local regulations.
o
Ensure that the collection tank for discharging pumped liquids is sufficiently large.
o
Observe the tightening torques
Ä
Appendix, Page 38.
o
Observe the operating instructions and data sheets of the components.
12.2 Wear
12.2.1 Signs of wear
The following table lists signs of progressive wear of individual pump elements:
Finding Cause Elimination
Increased running noises Incipient damage to bearing Replace the ball bearing.
Increased leaking Incipient damage to seal Replace the shaft seal.
Deposits at the shaft seal (only
applies for mechanical seal) Low-volatile liquids Clean the mechanical seal.
Increased play in the coupling Advanced wear of the coupling
intermediate ring Replace the coupling inter-
mediate ring.
Reduction in the delivery rate or
pressure under constant operat-
ing conditions Advanced wear of screws and
housing Replace the pump.
Tab. 11: Signs of wear
Operating instructions OIC 01en-GB Edition 2019-11 27