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06.2019
8.7 General hints for maintenance
Correct maintenance is decisive for the fan safety of operation and lifetime.
Operational disorders due to insucient or improper maintenance can cause high repair costs
and long downtimes.
For this reason, regular maintenance is indispensable.
Before starting maintenance and repair work (especially when the
fan must be opened), compliance with the switch-o procedures is
essential.
8.8 Checks
After completing work, please, check:
J The completeness of performed work,
J Unless there is reason to complain, the fan can be taken into operation
After checking and replacing the wear parts, please check, if all safety
devices are fully operable.
Operating manual
Centrifugal fans
HF R | RV | MRV
Checks
The inspection intervals must be shortened at strong degree of pollution, high
ambient temperatures and frequent start / many load changes. Interval
Check, if the fan is installed correctly and safely and pay attention to possible
vibrations during operation. If necessary, re-tighten the screw connections.
m
Check the connections of the pipe on the inlet and outlet side, housing cover and
shaft seal (if installed) for tightness.
m
Check the electric motor for correct and rm seating and functionality. MO
Check V-belts ½ y
Check the housing for stress cracks, quiet run and storage temperature. Check
the impeller for deformations, wear and cakings.
y
Do all greasing work at the bearings of the fan rotational. Keep attention to the
lubricating intervals of the engine manufacturer.
MO
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