horsch Maestro 16 SX, Operating Instructions Manual

Page: 66 / 158

7 | Pneumatic system
66 60026387 • 01 • 03/2021 • en
7.5.5 Checks and maintenance
WARNING
Risk of injury from running fan
Ø
Deactivate the fan drive before beginning with maintenance work and secure
it against restarting.
NOTE
Ø
The fan speed setting for fertiliser placement must be checked on all coulters
before starting work and also at regular intervals when working on large
areas.
Ø Leak oil: Ensure a free flow return pressure of max. 5 bar.
Ø
Check the oil level.
Ø
Retighten the clamping taper on the fan shaft (see chapter Retightening the
fan flange ).
Deposits on the protective grid restrict the air flow and thus lead to blockage in the
hoses.
Ø Clean the protective suction grid at regular intervals to prevent a restriction in
air flow and resulting blockage.
Deposits on the fan impeller cause unbalance. The bearing will thereby be over-
loaded and can be damaged.
Ø Clean any dirt or deposits from the fan blades to prevent unbalance and dam-
age to impeller and bearing.
The hydraulic oil could overheat if the radiator fins are soiled and cause clogging of
the fertiliser hoses.
Ø
Clean the radiator fins at regular intervals.
7.5.5.1 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
After approx. 50 hours retighten the clamping taper on the fan flange and check it
annually.