Fan Speed; Injector Box Assembly - Horizon Fitness DSX 40 Operator's Manual

6.4.2 - Fan Speed

The fan has a maximum speed of 4000RPM, any overrun of this can damage the motor.
To switch on the fan, adjust the flow rate to the minimum setting, engage the corresponding
hydraulic service and place it into continuous pumping mode. Adjust the service's flow rate to
adjust the fan to the desired operating speed.
The fan speed is adjusted according to the product and its application rate alongside the machines
working speed. Due to this there is therefore no adjustment table with recommended values.
The typical usage range is between 2500 Rpm & 4000 Rpm. To determine the correct speed for
the operator's application, there should be no product accumulation in the feed hoses for the
distribution heads. Smaller product (Small seeds in particular) requires less air to be transported
needing a lower RPM than large seeds.

6.4.3 - Injector Box Assembly

At the bottom of the metering unit is an injector box assembly. Seed metered by the metering unit
assembly is picked up by the airflow from the fan and carried back to the distribution heads at the
rear of the machine.
When calibrating the seed is taken out through an opening at the bottom of the injector box
assembly without the fan running. Once calibration is completed this opening must be closed
tightly again. This is covered by a polyurethane flap designed to seal the injector box and allow
for the seed to be picked up by the airflow for distribution. Once the flap has been used for either
calibration or emptying the meter/Hopper of product the flap must be resealed tightly
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