en
Application/use
10
WILO SE 2019-01
2.10
Operating fluid
The product uses the following operating fluids:
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The seal housing is filled with white oil.
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The gear and the pre-chamber are filled with gear oil.
Replace the operating fluids during regular maintenance work and dispose of them ac-
cording to the local guidelines.
2.11
Operator responsibilities
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Provide installation and operating instructions in a language which the personnel can
understand.
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Make sure that the personnel is relevantly trained for the specified work.
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Provide the necessary protective equipment and make sure that personnel wear it.
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Safety and information signs mounted on the device must always be legible.
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Train the personnel on how the system operates.
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Eliminate risk from electrical current.
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Demarcate and cordon off the working area.
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To ensure safe working practice, define personnel responsibilities.
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Carry out sound pressure measurement when the product is in normal operation. If
the measured sound pressure is more than 85 dB(A), wear hearing protection and in-
clude such instruction in the work regulations!
3
Application/use
3.1
Intended use
The mixers are suitable for both intermittent and continuous duty in drainage and
sewage (with and without faeces) as well as in sludge:
ƒ
for flow generation
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for suspension of solid matter
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for homogenisation
Intended use also includes compliance with this manual. Any use other than the inten-
ded use is regarded as improper use.
3.2
Improper use
The mixers must not be used in:
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Drinking water
ƒ
Non-Newtonian fluids
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Severely contaminated fluids containing hard components such as stone, wood,
metals, etc.
ƒ
Highly flammable and explosive fluids in pure form
4
Product description
4.1
Construction
The submersible mixer consists of the following main components:
1
2
3
4
5
6
7
8
9
Fig. 1:
Overview of the submersible mixer
1
Propeller
2
Gear, single-stage
3
Pencil electrode (optional)
4
Sealing chamber
5
Motor
6
Frame for lowering device
7
Handle grip
8
Connection cable
9
Pre-chamber
4.1.1
Propeller
Propeller made of solid or composite material, clogging-free thanks to backward-
curved incoming flow edge.
NOTICE! The propeller must not emerge during opera-
tion. Observe specified minimum water immersion!
