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6.2
Variable pulley adjustment
Variable pulley adjustment (optional)
Cut off the power supply before any work is performed and make sure that it cannot be re-established
accidentally.
• Loosen the four clamping screws on the side of the motor bracket.
• Untighten the belt by loosening the adjusting screw provided.
• According to the kind of variable pulley:
Loosen the 4 clamping screws, with hexagonal
socket head, adjust the mobile flange and tighten
the 4 screws again.
Loosen the 2 clamping screws, with hexagonal
socket head, adjust the mobile flange and tighten
the 2 screws again, while making sure that they
press against the bottom of the 2 grooves, so that
the threading of the pulley is not damaged.
To reduce the rotation speed: loosen the mobile flange To increase the rotation speed: tighten the mobile
flange.
WARNING: The rotation speed of the fan must never exceed the maximum rotation speed indicated
on the product identification label.
7. WASTE MANAGEMENT
7.1 Treatment of packaging and non-hazardous waste
Any packaging (no-return pallets, cardboard, film, wooden packaging) and other non-hazardous waste
must be recovered by an approved service provider.
It is strictly forbidden to burn, bury or leave it in a wild deposit.
7.2 Professional WEEE treatment
This product must not be dumped or treated with household refuse, but must be deposited in an appro-
priate collection point for waste electrical and electronic equipment (WEEE).
