Xylem WTS - Manual (Page 16)

Operating instructions
WTS 102/3-en 14
5. Maintenance, Servicing
Work should only be carried out on the pump or pump unit when it is not in
operation. You must observe Point 1.4 „Safety instructions“.
Maintenance and servicing work must only be carried out by trained, experienced
staff who are familiar with the contents of these Operating Instructions, or by the
Manufacturer's own service staff. The work carried out must be duly entered in the
„Log Book“ (see Point 11) and confirmed by being signed.
Storage
• After 4 years renew the deep groove ball bearings (K) as the grease ages and loses its lubricity.
• After an average of 5 years the grease in the motor bearings has aged so much that we
recommend that you change the bearings.
Cleaning the pump
Dirt on the outside of the pump reduces heat discharge. Therefore the parts of the pump above the
base plate must be cleaned with water at regular intervals (depending on how dirty they are).
The pump should not be cleaned with pressurised water - water will get into the
bearings.
6. Longer periods of non-operation
When starting up, follow the instructions for starting up for the first time (see Point
4.5)!
• Turn the pump shaft by hand at least 1x week before starting operations again. This can take
place at the motor ventilator but you must make absolutely sure that the motor cannot be
switched on either automatically or manually during the examination.
• If the lubrication of the slide bearings is guaranteed: Switch the pump on and then off again
immediately.
• After 4 years renew the pump's deep groove ball bearing (K) and the motor bearing as the grease
ages and loses its lubricity.
• After an average of 5 years the grease in the motor bearings has aged so much that we
recommend that you change the bearings.
7. Faults - Causes and Solutions
The following notes on causes of faults and how to repair them are intended as an aid to
recognising the problem. The manufacturer's Customer Service Department is available to help
repair faults that the operator cannot or does not want to repair. If the operator repairs or changes
the pump, the design data on the Data Sheet and Points 1.2-1.4 of these Operating Instructions
Please
note
Please
note
Please
note