Checks and maintenance
WARNING
Risk of injury from running fan
¾
Dismantle the protective grille on the fan only
when the machine is stopped! Operating the
fan without protective grille is not permitted.
¾
Do not expose yourself to the air from the fan
when the pneumatic hoses are disassembled.
NOTE
¾
Fan wing and protective grid must be regularly
checked for dirt deposits and cleaned.
Deposits on the protective grid restrict the air
flow and thus lead to blockage in the seed
pipes.
Deposits on the fan impeller cause unbal-
ance. The bearing will thereby be overloaded
and can be damaged.
Retightening the fan flange
The clamping taper fixates the fan wheel and
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.
NOTE
¾
After approx. 50 hours retighten the clamping
taper on the fan flange and check it annually.
Clamping taper
Please note:
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
flange 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 flange (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.
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