MVA 02 rev 5 - December 2017
109 of 120
11 FINAL DISMANTLING AND DISPOSAL OF FANS
At the end of the life cycle of the fan, the machine and its accessories must be dismantled as indicated
below, so as to allow the various components to be disposed of differently according to the type of material
from which they are made. Before demolishing the machine, the user must drain the grease present in
bearing supports and generally clean the various components.
CAUTION
:
Particular attention must be dedicated to the possible presence of residues of toxic and/or
corrosive substances left by the fluid moved.
Most of the components (casing, motor pedestal, intake, bearings, guards, pulleys, bushes) are made of
metallic materials (steel and cast iron), and can therefore be disposed of together.
Impellers are made from the materials indicated in Chart 11-1.
The electric motor must instead be separated and disposed of at a facility specializing in the elimination of
electrical wastes, together with any electric servomotors.
Drive belts are made fro rubber, and vibration dampers are also made mainly from the same material.
Most of the accessories are also made from metals, except for anti-vibration joints, constituted by two
metallic flanges bolted together and separated by a textile joint in PVC or aluminiumized glass fibre.
Fan dismantling operations can be carried out either in the place of installation, if the need for safe working
conditions allows this, or in some other location, after removing and transporting the fan as indicated in
Chapter 4 of this manual.
CAUTION:
All dismantling operations must be carried out only by qualified and authorized personnel,
equipped with the necessary PPE.
CAUTION:
All dismantling operations must be carried out
With the absolute certainty that the fan is at a complete standstill (impeller stationary), after
the motor has been disconnected from the electrical power supply by qualified and
authorized persons.
After having created a work environment with all necessary equipment and free from all
other activities that could dangerously interfere with dismantling operations.
Special or specific equipment is not necessary for the dismantling of fan parts.
Dismantling operations can be carried out following the detailed assembly instructions given in Chapter 10 in
the reverse order.
