© Munters AB, 2013
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8.1 Introduction
Maintenance must only be carried out by qualified personnel only using suitable tools and working methods.
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 standstill.
Fans do not contain parts needing periodic lubrication, as moving parts are either manufactured from self lubricating
materials, or are sealed with lifetime lubrication.
8.2 Cleaning
Inspect the fan at regular intervals and keep it clean. It is advised to perform periodic cleaning of safety mesh
guards. Dust on the safety mesh guards causes extra power consumption; severe dust on the motor can cause
overheating and subsequent motor failure.
8.3 Belt tensioning check up (without belt tensioner)
Check V-belt tension at regular intervals, the correct tension is obtained when maximum deflection (half-way from
motor and central pulley) is about 10 mm, when pushed in by thumb.
Tighten fan belt after this fan has been running for 3 days. Without adjusting the
tension, transmission components can wear out early.
Warning
Maintenance
8.
The capacitor in single-phase motors can retain a charge which appears across
the motor terminals even when the motor has reached standstill.
Warning
Keep motor body clean. Dust deposit on motor body will lead to overheating and
failure of bearings and motor itself.
Do not use water for motor cleaning. Use compressed air only. Water spraying
will cause rust inside the bearings and lead to their failure.
Warning
