An optional oil cooler is available for the fan.
The air in the pneumatic system is heated by
the dissipated heat. This allows pre-drying of
fertiliser, which facilitates prolonged use at hu-
mid conditions.
Oil cooler, protective grille removed
¾ After approx. 50 hours retighten the clamping
taper on the fan ange and check it annually.
Clamping taper
¾ When tightening the screws, especially with
a new assembly, the fan wheel will move
towards the housing in the direction of the
protective grid.
¾ A loose ange must therefore be aligned
closer to the hydraulic motor.
¾ The clamping faces must be free of oil and
grease.
¾ The clamping screws must be tightened uni-
formly and in several steps. Tightening onto
the taper should be supported by light ham-
mer blows on the ange (plastic hammer or
hammer shaft).
¾ The inch screws in design No. 10 - 24 4.6
must only be tightened with a torque of
max. 6.8 Nm.
¾ After tightening check the impeller for free and
even running.
44 45
Retightening the fan flange
The clamping taper fixates the fan wheel an
additionally clamps on the drive shaft.
The clamping taper on the fan drive may
come loose. The impeller can thus move
along the drive shaft and damage the fan.
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