4 Commissioning
B 1050 en-1819 57
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4.4 Gear unit cooling with fan( Option: FAN)
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Severe personal injury
Danger of injury due to rotating fan blades.
• Use a cover as a guard.
• If this does not achieve sufficient protection against contact according to the required protection type, the
machinery and plant constructor must ensure this by means of special attached components.
• Wear suitable goggles to prevent eye injuries due to thrown-up particles of dirt.
NOTICE! Overheating
The gear unit may be damaged by overheating.
• An adequate supply of air must be ensured by means of a minimum free space of 30° ahead of the air
intakes. The air inlet grille and the fan blades must be kept clean.
• For ribbed gear unit housings, special care must be taken that the spaces between the ribs are cleaned at
regular intervals to prevent deposits of dust or dirt.
NOTICE! Contact protection
Contact with the fan guard may cause damage to the fan.
• Check the contact guard for damage (e.g. due to incorrect transportation or installation). Repair any damage
prior to commissioning.
The main direction of rotation was specified in the planning phase and can be obtained from the
specific dimension sheet for the order.
The opposite direction of rotation is also permissible. However, in this case the fan does not provide
cooling, so that the calculated heating power of the gear unit cannot be complied with.
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