Servicing - schmalenberger 27217-A Manual De Instrucciones

6.3

Servicing

Before you begin any work on the motor the
power to the motor must be switched off and
secured against
unintentionally.
6.3.1 Changing bearings at the B end
shield
To change the bearings in the B end shield
proceed as follows:
- Remove fan hood, fan and tolerance ring.
- Remove tie rods or attaching screws,
depending on motor size.
- Detach B end shield from stator.
- Pull B end shield off of motor shaft.
- Remove equalizing ring
- Uninstall defective bearing, clean B end
shield and replace bearing with a new one.
(For data see Chapter 8, Replacement
parts).
- Clean all parts and reinstall in opposite
order.
- Before installing the fan hood turn the fan
wheel and check whether the motor and
pump are running freely.
CAUTION
Use only original replacement parts for the
repairs!
6.3.2 Changing bearings at the A end
shield
Bearing changes at the A end shield can only be
done with the pump disassembled.
Follow the instructions and the procedure in
section 4.2, topic: Repairs in the operating
instructions for the centrifugal pump.
After the pump has been uninstalled and the
impellor and shaft seal have been removed, the
motor can be separated from the pump.
Antriebe Typ 63 - 200L
Version: 27217 / A
being switched on
Schmalenberger GmbH + Co
D-72013 Tübingen - Germany
To replace the A side motor bearing proceed as
follows:
- Dismount fan hood, fan and clearance ring.
- Remove tie rods or attaching screws,
depending on motor size.
- Detach B end shield from stator.
- Pull B end shield off of motor shaft.
- Remove A end shield from stator.
- Pull A end shield off of motor shaft.
- Remove bearing cover / Seeger circlip ring
in A end shield
- Pull A end shield off of motor shaft.
- Remove defective bearing, clean A end
shield and replace bearing with a new one.
(For data see Chapter 8, Replacement
parts).
- Replace motor shaft seal.
- Clean stator winding, dry and check
electrical characteristics (see section 2.3).
- Clean all other parts and reinstall in
opposite order.
- Install the motor-pump unit according to the
instructions in the operating instructions for
the centrifugal pump (section 4.2).
- Check for free movement of motor and
pump.
- Install the pump in the pipeline system
CAUTION
If you need help from our customer service
department, prepare the following information:
• Power plate data, motor/pump no.:
• extent of the problem
• when and how did the problem arise
• the suspected cause.
Whenever you work on the motors from
Schmalenberger, follow the recommendations
and advice in the operating instructions.
Ask our customer service department for advice
early, before starting tasks which are unclear to
you!
GB F F
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