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Instructions For Maintenance; Ball Bearings; Safety Related Information On Taking Out Of Operation And Removal; Liability And Exclusion Of Liability - Herz HD140 Betriebsanleitung

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5. INSTRUCTIONS FOR MAINTENANCE

Wear parts are subject to the recommended maintenance
intervals and are an element of valid warranty claims (see 5.1 to
5.6). The service life of wearing parts (ball bearings and filters)
depends on the operating hours, the load and other influences,
such as temperature, etc.
Maintenance and servicing may only be performed by persons
with the necessary expertise and regular training. In addition to
the appliance's operating instructions and the regulations 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 maintenance
intervals himself according to operating hours, load and
operating conditions.
Immediate inspection and maintenance
The 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 is equipped with enclosed deep groove ball
bearings, which do not have be to re-greased and have a
minimum service life of approx. 22,000 hours. We recommend
exchanging the ball bearings before the end of their service life
(at least 22,000 hours).
A service period of 30 months must not be exceeded if the
blower runs continuously for 24 hours a day.
5.2 Seals and radial shaft sealing rings
Sealing elements and shaft sealing rings must, for safety
reasons, always be replaced after maintenance work involving
opening, removing or otherwise modifying sealing elements.
5.3 Micro-filters
The degree of clogging of the filter 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 filters are permeable. The micro-filter must be
positioned horizontally to prevent contamination entering the
side channel blower during maintenance work. With vertical
micro-filter installation, the complete filter must be removed from
the unit before starting cleaning/maintenance.
5.4 Pressure limiting valve
The pressure limiting valve is a safety valve and its operation
must therefore be checked at regular intervals depending on
application conditions. The operating side must be closed during
inspection. The pressure limiting valve must respond at the
maximum pressure value.
Note!
Repairs must be carried out by the manufacturer.
We cannot accept liability for repairs carried out
by third parties.
5.5 V-belt: Information on units without drive motor intended
for operation with a V-belt drive
We recommend that you check the V-belt tension approx. every
5,000 operating hours. New V-belts must be checked after a
running-in time of 2 hours and re-tensioned if necessary.
For data relevant to the V-belt drive of your unit, please refer to
the specifications in the table in Chap. 8 of these Operating and
Assembly instructions.
BA HD140 V20 R11 10_2017 EU long.doc
5.6 Cleaning
Cleaning or maintenance must not damage or alter the appliance
and its component parts to the detriment of health and safety
protection, and must not, for instance, affect the balancing of the
impeller.
6. SAFETY RELATED INFORMATION ON
TAKING OUT OF OPERATION AND REMOVAL
The disconnecting of all electrical connections and all other
electrical engineering work in connection with taking the blower
out of operation must be referred to a qualified electrician.
The blower may only be dismantled after all rotating parts have
come to a standstill and a safeguard has been provided to
prevent restarting. Dismantling and removal must be performed
in accordance with the guidelines set out in section 2.1,
Transportation and handling. Dispose of in the appropriate
manner.

7. LIABILITY AND EXCLUSION OF LIABILITY

The owner bears responsibility for the designated use of the unit.
HERZ GmbH shall not be liable in any case of damage resulting
from non-designated use of its units and components.
This also applies, in particular, to special usages and application
conditions, which have not been expressly co-ordinated with
HERZ GmbH.
Furthermore, HERZ GmbH shall not be liable for damage
resulting from modifications or conversions to the delivered
equipment or accessories, in particular, if such changes can
impair the explosion protection.
Similarly, HERZ GmbH shall assume no liability for maintenance
work and repairs, and the possible consequences thereof, that
have been performed incorrectly, with delay, by technicians not
qualified by HERZ GmbH, or which have not been carried out at
all.
8. TECHNICAL SPEZIFICATIONS
Type: Blower
m³/min
Pa
200 - 277
1,45
14000
345 - 480
200 - 277
1,7
14500
345 - 480
rpm
KW
2810
0,46
3390
0,62
Suction opening
Outlet opening
Dimension (lxbxh)
Ambient temperature.
Protection type
Optional 1 x 230V
V
Hz
A
2,10 - 2,85
50
1,20 – 1,65
2,40 – 2,70
60
1,35 – 1,55
LpA(db)
KG
65
11,3
70
11,3
: Ø 38 mm (aussen)
: Ø 38 mm (aussen)
: 283 x 244 x 266,5
: -20°C bis +60°C
: IP 54
: Kondensator 230 V; 40 µF / V
11

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