Inspecting the fan
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Inspections must be performed in compliance with Table
12-1 during operation of the fan.
Component
Weekly inspections during operation
Bearings (for structural designs K and R
only)
If the fan is not equipped with permanently installed
monitoring devices, checks must be performed using
mobile measuring equipment:
-
Bearing vibrations
-
Bearing temperatures
These weekly measurements must be documented in
order that any deviations from the normal condition can
be duly ascertained. Power down the fan immediately if
the “disconnection” limit values are exceeded. Refer to
chapter 8.9.
Shaft seal
For gasproof fan configuration (optional):
Inspect the shaft seal for leaks. Use a suitable test
medium (e.g. E-COLL leak finder spray) for the leak test
and spray it on the area being tested, e.g. shaft seal,
flange and all other connection points.
A “gasproof fan configuration” is signified on the fan data
sheet with the designation “gasproof” in the “configuration
of fan” column.
Condensate drain (optional)
Open the condensate drain, allow accumulated
condensate to drain into a suitable collecting vessel,
dispose of the condensate in an environmentally-friendly
manner and in accordance with requirements of the
respective country of use.
Motor
Inspect the motor for unusual noises and smooth running.
Remove any build-up of dust for unobstructed heat
dissipation via the cooling fins. Refer to the instructions of
the motor manufacturer.
Monitoring devices (optional)
Check the connections on the fan for secure fastening.
Flexible connections (optional)
Inspect the flexible connections for damage.
Fan in general
Inspect the fan in general for unusual noises and smooth
running.
Additional accessories (optional) such as
re-lubrication devices, brake, dampers, oil
supply system, silencer, round filter,
actuators
Check the accessories for functionality and leaks. Refer
also to the separate instructions of the manufacturer.
12.1 Weekly inspections
Table 12-1 Weekly inspections
