English
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WILO SE 03/2018
CAUTION! Risk of material damage!
Risk of damage due to incorrect handling.
• The pump may never be operated without the electronic module
being installed.
DANGER! Risk of fatal injury!
The pump itself and pump parts can be extremely heavy. Falling
parts pose a risk of cuts, crush injuries, bruises or impacts, which
can be fatal.
• Always use suitable lifting equipment and secure parts against
falling.
• Never stand underneath a suspended load.
• Make sure the pump is securely positioned and is stable during
storage and transport as well as prior to all installation and other
assembly work.
DANGER! Danger of burns or freezing to the pump when body parts
come into contact with the pump!
Depending on the pump or system operating conditions (fluid tem-
perature), the entire pump can become very hot or very cold.
• Keep a safe distance during operation!
• In the case of high water temperatures and system pressures, allow
the pump to cool down before all work.
• Always wear protective clothing, protective gloves and protective
goggles when working.
DANGER! Risk of fatal injury!
The tools used during maintenance work on the motor shaft can be
flung out if they come into contact with rotating parts, and cause
serious or even fatal injuries.
• The tools used during maintenance work must be removed com-
pletely before the pump is started up.
10.1
Air supply
The air supply to the motor housing must be checked at regular inter-
vals. In case of contamination, ensure that an air supply is re-estab-
lished in order to allow the motor and electronic module to cool
sufficiently.
10.2
Maintenance tasks
DANGER! Risk of fatal injury!
There is a risk of fatal injury from electric shock when working on
electrical devices. Following removal of the electronic module, a
potentially fatal shock voltage may be present at the motor con-
tacts.
• Check for absence of voltage and cover or cordon off adjacent live
parts.
• Close the shut-off devices upstream and downstream of the pump.
• Separate the motor shaft from the coupling unit by loosening the
coupling screws.
DANGER! Risk of fatal injury!
Falling pumps or pump parts may result in life-threatening injuries.
• When performing installation work, protect the pump components
against falling.
10.2.1 Replacing the mechanical seal
During the running-in period, a minor amount of dripping is to be
expected. Even during normal operation of the pump it is normal for
there to be slight leakage with the occasional formation of drops.
Once in a while, however, a visual inspection is required. If there is
clearly detectable leakage, the seal must be changed.
Wilo offers a repair kit which contains the necessary parts for replace-
ment.
Summary of Contents for STRATOS GIGA
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