Vane-axial fans are designed for high-pressure ventilation and industrial-process applications where axial flow is desirable and space is at a premium. Uses include heat, smoke and fume removal, process drying, comfort and process cooling and general ventilation.
Expert and regular maintenance is a prerequisite for troublefree operation. To prevent long periods of repair and downtimes, the following recommendations should be strictly observed.
Purchased parts manufactured by sub-suppliers have to be maintained according to their instructions.
Bearings and Lubricants
The anti-friction bearings installed are subject to the manufacturer’s lubrication instructions. Other lubricants can also be used, of course, if they have comparable characteristics. Please find the corresponding overview in the annex. When cleaning the housing, completely remove old grease, possibly clean the bearing and fill with new grease. The lubricants must be stored in clean, closed containers to prevent dust and moisture from penetrating. The storing place should be dry and cool.
Impeller
In case of long shutdowns spin the impeller once per week. Here the final position should be offsett by 90° compared to the previous idle position.
Apart from the regular visual inspections (at least once a year) the impeller must be cleaned whenever it is dirty. The cleaning intervals depend on the fluid conveyed.
Motor
Under standard conditions the motors used by RUWU are maintenance-free. Permanently lubricated bearings do not require regreasing.
Apart from this, the motor manufacturer’s maintenance instructions are valid.
Belt Drive
The drive must be visually inspected after the first 24 hours of operation. Afterwards, it should be checked every three months.
Protect the belts against oil mist, dripping oil and other chemicals. Permanent exposure to these fluids causes early wear of the belts.