Wilo Stratos MAXO-D 32/0,5-12 Notice De Montage Et De Mise En Service page 206

en
14.2.2 Dismantling/installing the control
module
206
Maintenance
▪ Avoid flow in the pump during dismantling/installation work!
▪ Close the existing shut-off devices in front of and behind the pump!
▪ If no shut-off devices are fitted, drain the system!
Dismantling the motor
1. Remove sensor cable carefully from the control module.
2. Loosen sensor cable from cable clips.
3. Using a screw driver, carefully lift the cable clip from the motor fastening screws
and keep aside.
4. Loosen motor fastening screws.
CAUTION
Material damage!
If the motor head is separated from the pump housing during maintenance or repair
work:
‣ Insert the O-ring between the motor head and pump housing!
‣ Install the O-ring without torsion in the edge of the bearing plate facing towards
the impeller!
‣ Make sure the O-ring has been installed correctly!
‣ Carry out a leak test at the highest permissible operating pressure!
Installing the motor
The motor is installed in reverse order of dismantling.
1. Tighten motor fastening screws diagonally. Observe the tightening torques! (Table,
see section "Aligning the motor head [} 132]").
2. Press cable clip onto two motor fastening screws.
3. Insert sensor cable into the control module interface and press the sensor cable
into the cable clip.
NOTICE
If access to the screws on the motor flange is not guaranteed, the control module
can be separated from the motor (see the "Aligning the motor head" section).
In case of double pumps, the double pump cable, which connects the motors, must
be loosened or inserted.
For pump commissioning see section "Put into operation [} 147]".
If only the control module has to be brought into another position, the motor need not
be pulled out of the pump housing completely. The motor can be rotated in the pump
housing into the desired position (follow permissible installation position). See section
"Aligning the motor head [} 132]".
NOTICE
In general, turn the motor head before the installation is filled.
Perform leakage test!
Take into account the "Shutdown" section before dismantling/installing the control
module!
DANGER
Risk of fatal electrical shock! Generator or turbine operation during
pump flow!
Even without the module (without electrical connection), there may be dangerous
contact voltage at the motor contacts.
WILO SE 2018-11