Maintenance, repair
Assembly and operating instructions Tangential fans
5
EN
professionally connected and operating
properly.
-
Connection data complies with the
specifications on the type plate.
•
Start-up:
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Switch fan on in accordance with switched
state and local conditions.
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Check: Smoothness of motor operation,
Direction of rotation/direction of
conveyance when looking at the motor
(see also Fig. 1, 2)
Figure 1: Direction of rotation: right
Figure 2: Direction of rotation: left
9 Maintenance, repair
Wear safety shoes and gloves for handling!
•
Due to the selection of bearings with "lifetime
lubrication" (special grease), the cross flow fan
is maintenance-free. Once the grease
consumption period has expired (for standard
applications, approx. 20-30,000 hrs., for direct
current motors with collector, approx. 5-10,000
hrs.), it is necessary to replace the bearings.
•
Take note of abnormal operating noise!
•
Replace the bearings at the end of the grease-
consumption period, or if they should become
damaged. Ask for our Maintenance Guide or
contact our Repair Department (special tools
may be required!).
•
Replace bearings only with original parts.
•
In the event of any other damage (e.g. motor
damage or damage to the fan cylinder), please
contact our Repair Department.
•
On 1~ motors, condenser rating can decrease
with time. Life expectancy approx. 30,000 hrs.
per DIN EN 60252.
•
Outdoor fans: If a fan is stationary for long
periods in a humid atmosphere, it should be
switched ON for minimum of two hours
every month to remove any moisture that
may have condensed within the motor.
•
Allow maintenance work to be carried out by
trained specialists only.
•
For all repair and maintenance work:
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Observe the safety and labour regulations
(DIN EN 50 110, IEC 364).
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Fan cylinder has come to a standstill!
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Open the electrical circuit and secure
against being switched back on.
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No maintenance work at running fan!
•
After dismantling and reinstalling an impeller,
the entire rotating unit must be rebalanced in
accordance with DIN ISO 1940,-1.
•
Keep the airways of the fan free- danger
because of objects dropping out!
•
Do not bend fan cylinder or blades!
10 Cleaning
•
Regular inspection, and cleaning is necessary
to prevent
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imbalance due to ingress of dirt.
•
Clean the fans`s flow area.
•
Keep fan air way open; clean the fan cylinder
with a brush when necessary.
•
Watch out for vibration free motion.
•
Maintenance interval in accordance with the
degree of contamination of the impeller!
•
You can clean the entire fan with a moist cloth.
