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© Munters AB, 2018
8. MAINTENANCE
8.1 Introduction
Maintenance must only be carried out by qualified personnel only using suitable tools and working methods. It is mandatory
to purchase and use only original spare parts or those recommended by the manufacturer. The use of non-original spare
parts or incorrect assembly exonerates the manufacturer from all liability.
Before any maintenance steps are taken, make sure the power switch is in the off position and locked by a padlock. Make
sure the propeller is at a complete stand still.
WARNING
Maintain clean the gear motor: a lack of cleaning may lead to overheating and breakage of the
bearings and also gear motor itself.
It is forbidden the use of high pressure water in order to avoid damage to the gear motor of the fan (corrosion and
bearing damage).
The responsibility lies with the operators to maintain the fan clean, free of foreign materials like dust, organic residue, etc.
WARNING
All the components and spare parts MUST be storaged in dry and clean environment, and correctly
positioned.
8.2 Maintenance instructions for geared motor
As regards maintenance instructions for geared motor, please refer to the manual at the following link:
https://www.nord.com/cms/dk/documentation/manuals/details_1139/detail_42075.jsp.
8.3 Maintenance instructions for fan
EVERYDAY PERIODIC MAINTENANCE
Visual check of the fan
Acoustic check of the fan
Check blade rotation during operation
6 MONTHS PERIODIC MAINTENANCE
Check the tightening torque (50Nm) of the safety brackets
Check the tightening torque (90 Nm for the 6m and 7m and 50 Nm for the
3m ,4m and 5m) of the propeller hub screw (Fig.26)
Check the blade, hub and spider for signs of damage or cracks and
replace if necessary
Check that all the structural screws of the fan and its support are correctly
tightened
