Shut-down/dismantling
en
Installation and operating instructions Wilo-Vardo WEEDLESS-F
25
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Vibrations due to blockage of the basin inlet/outlet and draining, incorrect air intake
(aeration) or the combined effect of several mixers.
Check system configuration and take counter-measures. Contact customer service for
further assistance.
8
Shut-down/dismantling
8.1
Personnel qualifications
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Operation/control: Operating personnel must be instructed in the functioning of the
complete system.
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Electrical work: A qualified electrician must carry out the electrical work.
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Installation/dismantling: The technician must be trained in the use of the necessary
tools and fixation materials for the relevant construction site.
8.2
Operator responsibilities
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Locally applicable accident prevention and safety regulations of trade associations.
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Observe regulations for working with heavy loads and under suspended loads.
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Provide the necessary protective equipment and make sure that the personnel wears
it.
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Provide adequate aeration in closed rooms.
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Take immediate countermeasures if there is a build-up of toxic or suffocating gases!
8.3
Decommissioning
NOTICE
Take note of additional literature!
To ensure proper use, additionally read and observe the manufacturer instructions.
The mixer is deactivated during decommissioning, but remains installed. This ensures
that the mixer is always ready for operation.
‡
To protect the propeller from frost and ice, always immerse the propeller com-
pletely in the fluid.
Min. immersion in water: 1 m (3 ft).
‡
The temperature of the fluid must always be above +3 °C (+37 °F).
1. Switch off the mixer at the operating point.
2. Secure the operating point against being switched on again by unauthorised per-
sons (e.g. lock main switch).
▶ The mixer is decommissioned and can now be dismantled.
If the mixer remains installed after decommissioning, observe the following:
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Ensure that the requirements for decommissioning are maintained for the complete
decommissioning period. If these requirements cannot be guaranteed, package or
dismantle the mixer after decommissioning!
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Carry out a 5-minute functional test at regular (monthly to quarterly) intervals.
8.4
Dismantling
DANGER
Danger due to fluids hazardous to health during removal!
During removal, contact with fluids that are hazardous to health may occur. Observe
the following points:
• Wear protective equipment:
⇒ Closed safety goggles
⇒ Mouth protection
⇒ Protective gloves
• Immediately wipe up drips.
• Observe the specifications in the work regulations! The operator must make
sure that the personnel have received and read the work regulations!
