Specifications

COLASIT AG
Plastic construction
CH-3700 Spiez
Phone [phone] Fax [phone]
Edition 2011 / Subject to alteration
Copyright by COLASIT AG Spiez
Page 14
10 Logbook
For your own safety and as an aid to personal responsibility, we recommend the keeping of a logbook for the
entire period during which the fan is in service.
All events should be recorded in the logbook.
In case of damage and also in case of an accident, this document is the first source of information.
For example, enter the date and your signature:
- Start and end of a work cycle
- Special events, even if they do not concern the fan itself (e.g. power failure, alarm)
- Change of supervision staff (e.g. in case of shift operation),
- Repairs carried out and spare parts installed,
- Putting out of operation,
- Special instructions,
- etc.
11 Disposal
Before disposing of plastics and other components (complete or as broken parts), please clean them as
necessary to avoid any danger to the environment.
Dispose of the components properly. Instruct a waste disposal company to do this or return them to us for
disposal.
12 Troubleshooting
If faults occur, we recommend you identify and clear them using the following table.
If the fault cannot be cleared, please contact our customer service department.
Fault Possible causes Remedy
Impeller imbalance
Rebalance by specialist
company
Impeller caked up
Clean carefully rebalance if
necessary
Material corrosion on impeller
due to aggressive conveyed
medium.
Consult the manufacturer
Impeller deformed due to high
temperature.
Consult the manufacturer.
Install new impeller.
Check bearings
Fan not running smoothly
V-belt drive not correctly
aligned.
Adjust belt drive
Normal wear and tear Replace V-belts in sets
V-belt torn or damaged
V-belt pretensioned too strongly
Tension replacement belt to
manufacturer’s specifications
Incorrect pretension
Check belt tension and retighten
if necessary
V-belts slip due to
Foreign bodies or soiling in
grooves or pulleys
Clean pulleys and check belt
profile
Leak at shaft bushing Seal not suitable for application Consult the manufacturer
Sleeves defective Replace sleeves
Leak on sleeves
Tensioning straps not tight
enough
Retighten tensioning straps
Incorrect rotation direction of
impeller
Change rotation direction
Pressure losses in ducts too
high
Change duct arrangement
Fan output too low
Restrictors not or only partly
open
Check opening on site