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Fig. 25: Drain condensation water: T 63.2, T 72
9.7
Repairs
9.7.1
Instructions on using screw lock-
ing devices
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID
Maintenance and repair
Motor T 63.2, T 72
-
Drain condensation water
‡
Protective equipment has been put on!
‡
Pump is removed and cleaned (if necessary decontaminated).
1. Place the pump upright on a firm surface.WARNING! Risk of hands being crushed.
Make sure that the pump cannot fall over or slip!
2. Place a suitable tank to collect the operating fluid.
3. Unscrew the screw plug slowly (-) but do not unscrew it completely. WARNING! Over-
pressure in the motor! If you hear hissing or whistling sounds, do not turn any fur-
ther! Wait until the pressure has fully dissipated.
4. After the pressure has dissipated, fully unscrew the screw plug (-) and drain the operat-
ing fluid.
5. Clean the screw plug (-), replace the seal ring and screw it back in. Max. tightening
torque: 8 Nm (5.9 ft·lb)!
WARNING
Sharp edges on the impeller and suction port!
Sharp edges can form on the impeller and suction port. There is a danger of limbs being
severed! Protective gloves must be worn against cutting injuries.
WARNING
Hand, foot or eye injuries due to a lack of protective equipment!
During work there is a risk of (serious) injury. Wear the following protective equipment:
• Safety gloves that protect against cuts
• Safety shoes
• Closed safety goggles
The following preconditions must be met prior to starting repair work:
▪ Pump cooled down to the ambient temperature.
▪ Pump is switched voltage-free and secured against being activated inadvertently.
▪ Pump cleaned thoroughly and disinfected (if required).
For repair work the following generally applies:
▪ Wipe up spillage quantities of fluid and operating fluid immediately!
▪ Always replace O-rings, gaskets and screw locking devices!
▪ Observe the tightening torques in the appendix!
▪ Never use force when carrying out this work!
A screw locking method can be used on the screws. Ex-factory, the screws are locked using
two different methods:
▪ Thread-locking fluid
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