KSB LCV, Installation & Operating Manual

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LCV [en-US]
23
7 Maintenance
WARNING
Refer to Section 2.9 "Assembly & Disassembly Safety" prior to working on the pump.
7.1 Supervision of Operation
WARNING

Operational procedures which may cause system water hammer must be avoided. Sudden and
catastrophic failure of pump casing and plates may result.

Prolonged operation against a closed shut-off element is not permitted. Danger of steam generation
and explosion!
CAUTION

Neglect of maintenance procedures and monitoring can result in failure and leakage of the shaft seal,
bearing seals, and wear components.

The pump should run quietly and free from vibrations at all times. Unusual noise or vibration should be
investigated and corrected immediately.

If the flexible coupling elements begin to show signs of wear, they should be replaced.

When running the pump against a closed discharge-side shut-off element for a short period, the permissible pressure
and temperature values must not be exceeded.

Any stand-by pumps installed should be switched on and off again as described in Section 6.3.1 "Measures to be taken
for Prolonged Shutdown".
7.2 Drainage / Disposal
CAUTION
If the pump was used for handling liquids posing health hazards, see to it that there is no risk to persons or the
environment when draining the medium. All relevant laws, local codes, and safety procedures must be heeded.
If required, wear safety clothing and a protective mask.
If the media handled by the pumps leaves residues which might lead to corrosion when coming into contact with atmospheric
humidity, or which might ignite when coming into contact with oxygen, the unit must be flushed thoroughly and neutralized.
The flushing liquid used and any liquid residues in the pump must be properly collected and disposed of without posing any risk
to persons or the environment.
7.3 Lubrication and Lubricant Change
Under severe operating conditions, high ambient temperature, high humidity, dust laden air, aggressive industrial atmosphere,
etc. the intervals for checking, replenishing and replacing the lubricant should be shortened.

Refer to Section 6.1.1 "Bearing Lubrication" for bearing grease change instructions, specifications & capacities.

Grease lubricated bearings should be replenished after the initial 50 hours of operation, then every 1,500 hours
thereafter by an injection roughly equal to one half of the amount originally used to pack the bearings.

After 20,000 operating hours or 2.5 years the bearings should be checked, then cleaned and relubricated if required.