Instructions For Maintenance; Safety Related Information On Taking Out Of Operation And Removal; Ball Bearings; Relief Valve - Elektror 2SD series Betriebs- Und Montageanleitung

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rents can lead to unwanted tripping in systems protected by
a 30 mA-FI circuit-breaker.
If a fault occurs, fault currents can also discharge through the
PE conductor as direct current. If protection is needed on the
supply side by means of an FI circuit-breaker, then an ACDC
sensitive (type B) FI circuit-breaker must be used. Use of an
FI circuit-breaker other than type B can cause death or seri-
ous injury if a fault occurs.
To meet the EN 61800-5-1 standard, the PE conductor must
be duplexed and routed through separate terminals or have
a cross-section of at least 10 mm² Cu.
Operation and connection to public grids:
See 3.5

5 INSTRUCTIONS FOR MAINTENANCE

Wear parts are subject to the recommended maintenance in-
tervals and are an element of valid warranty claims (see 5.1
to 5.4). The service life of wearing parts (ball bearings and
fi lters) depends on the operating hours, the load and other
infl uences, such as temperature, etc.
Maintenance and servicing may only be performed by per-
sons with the necessary expertise and regular training. In ad-
dition to the appliance's operating instructions and the regu-
lations and recommendations for the system as a whole, the
following points should be observed:
Inspection and maintenance intervals:
The operator must set the cleaning, inspection and mainte-
nance intervals himself according to operating hours, load
and operating conditions.
Immediate inspection and maintenance
The side channel blower must be inspected immediately if
vibrations or reduced air fl ow are observed.
Note!
Repairs must be carried out by the manufacturer.
We cannot accept any liability for modifi cations
or the replacement of components carried out by
third parties.

5.1 Ball bearings

The side channel blower is equipped with closed grooved
ball bearings that do not have to be relubricated and have a
minimum service life of 22,000 hours in the case of horizontal
drive shafts.
We recommend that the ball bearings are replaced before
exceeding the service life, minimum 22,000 hours. We gen-
erally recommend replacing the bearings after 30 months.
5.2 Micro-fi lters
The degree of clogging of the fi lter elements should be
checked at regular intervals, depending on the ambient
conditions / conditions of use. This means that the user is
responsible for ensuring that the fi lters are permeable. The
micro-fi lter must be positioned horizontally to prevent con-
tamination entering the side channel blower during mainte-
nance work. With vertical micro-fi lter installation, the com-
plete fi lter must be removed from the unit before starting
cleaning/maintenance.

5.3 Relief valve

The relief valve is a safety valve and its operation must there-
fore be checked at regular intervals depending on application
conditions. The operating side must be closed during inspec-
tion. The relief valve must respond at the maximum pressure
value.
Operating and assembly instructions 1SD, 2SD
Note!
Repairs must be carried out by the manufacturer.
We cannot accept any liability for modifi cations
or the replacement of components carried out by
third parties.
5.4 Cleaning
There is a high risk of injury on the inside of the device due to
rotating parts during operation. Decommission the device in
all cases and wait until all moving parts have stopped before
opening, reaching in or inserting tools into the device. Secure
the device reliably against it being accidentally restarted dur-
ing the entire period.
Also make sure that no other dangerous situation can arise
when restarting after a standstill, e.g. as a result of a power
failure or blockages.
Cleaning or maintenance must not lead to damage or modi-
fi cations to the device and its components that would infl u-
ence safety or health protection and, for example, impair the
balanced state of the impeller.
When starting up the side channel blower, make sure that
all tools or other foreign objects have been removed from
inside the device and that all covers and protective grilles
have been attached correctly.
6 SAFETY RELATED INFORMATION
ON TAKING OUT OF OPERATION AND
REMOVAL
The disconnection of all electrical connections and any other
electrical work in connection with decommissioning must
only be carried out by a qualifi ed electrician.
The device should be dismantled only when all rotating parts
have come to a standstill and cannot be restarted.
The guidelines set out in 2.1 Transport and Handling must be
observed when dismantling and removing it.
Treat the device as industrial waste when disposing of it.
The device parts are made of recyclable material, such as
aluminium, (stainless) steel, copper and plastic. However,
there are components that need special treatment (e.g. fre-
quency converters). The statutory national and local disposal
and recycling regulations must be observed.
7 LIABILITY AND EXCLUSION OF
LIABILITY
The owner shall bear the responsibility for the correct use of
the device.
Elektror shall not accept any liability for any use of its prod-
ucts and components which is contrary to their intended use.
This shall also apply in particular to use in special applica-
tions and under operating conditions that have not been spe-
cifi cally agreed with Elektror.
Elektror shall not accept any liability for any modifi cations or
alterations to the device or accessories supplied.
Likewise, Elektror shall not be liable for improper, delayed,
neglected maintenance. Neither shall it be liable for any
cleaning and repair work not carried out by qualifi ed Elektror
specialists, nor for the possible consequences.
EN
15