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9.2.1
Lubrication and Changing Lubricants
Centrifugal pumps of the types WK / WKN in the standard models only run on bearings in
the drive motors. The bearings are designed to last the useful life of the motor and are
filled with a grease that cannot be replenished. Defective bearings must be replaced.
9.3
Repair
9.3.1
General
Always carry out repair work on the removed centrifugal pump in an appropriate workshop.
Be sure to observe the general instructions at the beginning of the chapter!
These instructions will enable you to dismantle the pump and to re-assemble it properly
with the requisite spare parts in place.
Information:
i
Please also take note of the attached exploded diagram and the spare parts
list!
Attention:
When a new mechanical seal is fitted special instructions must be observed!
Otherwise the work can be undertaken with the usual workshop tools. No special tools are
needed.
After dismantling thoroughly clean all the individual parts of the centrifugal pump. Check
the individual parts for wear and damage. Parts that are not perfect must be reworked or
replaced.
9.3.2
Dismantling Preparations
Attention:
Prior to starting to dismantle it the pump must be safeguarded against
accidental switching on (it must be disconnected). Warning on the switching
cabinet!
When used in a facility, inform the shift leader or manager.
Important:
!
For the following work, please be sure to observe local regulations and
conditions.
132
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
OPERATOR'S MANUAL
Pumpe Typ WK / WKN
Version: 27220 - A
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