Spare Parts - Wilo Atmos TERA-SCH Serie Einbau- Und Betriebsanleitung

en
11

Spare parts

44
Spare parts
Error type:
1 2 3 4 5 6 7
X
X
X
X X
X
X
X
X X
X
X
Table 21: Causes of error and remedies
Spare parts may be ordered via a local installer and/or Wilo customer service. List of ori-
ginal spare parts: Refer to the Wilo spare parts documentation and the following in-
formation in these installation and operating instructions.
CAUTION
Risk of property damage!
Trouble-free pump operation can only be guaranteed when original spare parts are
used.
Use only original Wilo spare parts!
Information to be provided when ordering spare parts: Spare part numbers, spare
part names/descriptions, all data from the pump rating plate.
Recommended spare parts
In case of standard operation, we recommend the following list of spare parts regarding
the period of functioning.
For 2 years of normal operation:
Mechanical seal or Packing, ball bearings and the different gasket required for the dis-
mounting of the pump.
For 3 years of normal operation:
Mechanical seal or Packing, ball bearings and the different gaskets required for the dis-
mounting of the pump, wear rings and their nuts. For the pumps equipped with gland
packing, include the gland plate.
For 5 years of normal operation:
Take the same lot of part as for 3 years and add shaft and impeller.
The maintenance of the split case pumps is easier than other pump types. Then in order
to facilitate this operation we strongly recommended purchasing a batch of parts with
8 Cause
Thrust too high
Bearing lubrication not
sufficient
Coupling distance not
maintained
X – Flow rate too low
– Housing screws not
correctly tightened or
gasket defective
Leak in mechanical seal
Shaft sleeve (if present)
worn
Imbalance of the im-
peller
Bearing damage
Foreign object in the
pump
X Pump pumps against
closed shut-off device
Remedy
– Clean the relief bores
in the impeller
– Check the condition
of the wear rings
Check bearing, ex-
change bearing
– Correct the coupling
distance
– Maintain recommen-
ded minimum flow rate
– Check tightening
torque
– Replace gasket
– Replace the mechan-
ical seal
– Replace the shaft
sleeve
– Rebalance the im-
peller
– Exchange bearing
– Clean pump
– Open the shut-off
device in the pressure
pipe
WILO SE 2020-10