Installation and Operating Instructions Wilo-Cronoline
13
Englis
h
Operation
7 Operation
8 Maintenance and Repair
Warning: Risk of burning or freezing on if the pump is
touched!
Depending on the operating conditions of the pump or installa-
tion (liquid temperature), the entire pump can become very hot
or very cold. Keep your distance during pump operation!
Caution: Damage to the pump through overheating!
The pump may not be operated longer than 1 minute without
flow. An accumulation of energy creates heat that can damage
the pump shaft, impeller and mechanical seal.
A minimum flow rate of approx. 10% of maximum flow rate
must always be guaranteed.
Danger: life threatening due to electrical shock!
Touching live components can be fatal. Only qualified electri-
cians may work on the electrical system. Prior to any mainte-
nance work, disconnect the pump from the power supply and
secure against reconnection.
Warning: Damage due to incorrectly tightened screws!
Overtightened screws can break off. Subsequently, separate
parts and fragments may chip off and / or the hot liquid may
spray.
Observe screw tightening torque specifications
Warning: Danger due to hot liquid under pressure!
During dismantling of motor or pump, hot liquids may escape
under high pressure. Allow the pump to cool down first.
Close isolation valve prior to dismantling pump.
Caution: Damage due to incorrectly performed
maintenance!
Incorrectly performed maintenance work can damage the
pump. The maintenance work described below may therefore
only be performed by trained personnel.
