2019.10
7 / 8
In addition to routine maintenance motor bearings will in the longer term require attention. If the motor
bearings are greased through extended lubricators, a quality of grease should be periodically applied in
accordance with the information on the fan or motor nameplate and/or instructions provided.
9. FAULT DETECTION
It is necessary to turn off the fan before checking the fan and the system. During maintenance, device
electrical connections should be cut entirely. All switches and circuit breakers should be locked by brought to
the OFF position. Also “DO NOT START” sign should be placed on the control panel that will consistently
stand.
Check that the electrical connections to the unit are secure. Check that the voltage applied at the fan
terminals is as specified on the motor nameplate, and is balanced. Measure the current on each phase (one
phase in the case of single-phase motors) of the motor in turn and check that the current consumption is
within the full load current specified on the motor nameplate.
Rotate the motor shaft by hand. Investigate any sound of grinding noises, internal chaffing, rubbing or
stiffness. Any observed defect may indicate that the bearings require lubrication or replacement. Ensure that
all fixings are secure. Make sure that the fan blade is not blocked by an object, if fan is still not working,
contact your supplier.
10. WARRANTY
The warranty period starts from the date of delivery and it is for 2 years.
Including all parts of the entire fan is under warranty of our company.
The maximum repairing period is 30 business days. This period starts from the date of
notification to us.
Fan's warranty does not include electrical connection errors, failures that may arise due to
voltage and user errors.
The warranty is only valid under condition that the fan is assembled, operated and periodic
maintenance to be made according to this manual.
For Atex-certified products, ATEX certification will be voided without repair written permission
of the manufacturer and in cases of repair replaced with non-original parts.
MAINTENANCE, REPAIR AND REPLACEMENT OF PARTS MUST BE CARRIED OUT
BY ATEX TRAINED PERSONNEL.
