Unigreen DEVIL Clutch, Optional Deflectors and Accessories, Cannon Blower Group, Hydraulic Drives

FIG. 23

FIG. 24

FIG. 25

18unigreen

5.5CLUTCH

Big aluminium and nylon blowers have a centrifugal type clutch that makes it possible to engage the fan rotor gradually.

This prevents jerky starts, due to the inertia of the fan rotor, which can have a negative effect on the transmission.

For the centrifugal clutch to work properly the speed of the power-takeoff mustn’t be less than 450 rpm, especially if you are using the first gear of the multiplier.

Generally clutches with shoes/plates made of sintered material with a high coefficient of friction are fitted, on some low power models rubber clutches may be fitted.

5.6OPTIONAL DEFLECTORS AND ACCESSORIES

The atomisers are fitted with deflectors underneath for the optimal regulation of the airflow towards the zone to be treated. To adjust these, simply pull or push the deflector, positioning it in the desired way (FIG.23).

Top deflectors can also be supplied on request to improve the regulation of the airflow towards the lateral zones without dispersing the product upwards. To ad- just these, simply loosen the black lever (shown in figure 24), position the de- flectors and lock the lever again.

5.7CANNON BLOWER GROUP

The cannon blower group is equipped with a multiplier similar to the normal axial blower groups and all of its operating characteristics are the same.

The main difference with respect to the axial blower groups is that the centrifugal fan rotor is made of galvanised steel, the fan rotors in this type are fixed and can’t be adjusted, for the clutch see the previous paragraph. This fan rotor can usually produce a delivery which is much higher with a very high speed airflow (Fig. 25).

The cannon fan is mounted on a thrust block that can be adjusted by hand by unscrewing the relevant locking screw. This adjustment must be done with the fan rotor stopped because the high speed of the air make the movement of the fan dangerous.

5.7.1 MANUALLY INCLINABILE HEAD

The cannon blower group can be equipped with a pivoting head (max inclination 180°) adjustable by hand.

5.7.2 HYDRAULIC DRIVEN HEADS

On request hydraulic pivoting (inclination 90° roughly) and rotating (max rotation 270°) heads are available.

5.7.3 HYDRAULIC DRIVES

The cannon fans can be equipped with hydraulic drives: with the cylinder fitted directly (30° inclination roughly) or a motor with a pinion and chain (180° inclination roughly).

5.7.4OIL FEED FROM TRACTOR (for hydraulic systems)

Connect the delivery and discharge quick-fit coupling to the respective connections, respecting the direction of flow.

The distributor inlet pipe is connected to the aluminium flow separator valve next to the distributor.

The flow separator must be adjusted correctly so it sends less than 4-5 L/1° to the distributor.

To prevent the cylinders moving at a dangerous speed, adjust the relevant chokes near the cylinders. If the registration ringnuts aren’t visible then fixed chokes are fitted. The chokes are fitted on the discharge line of the movement to slow.

Any impurities in the oil could block the chokes and as a consequence block the cylinder; remove the dirt if necessary. The maximum pressure valves of the distributors are regulated to a pressure of around 150 bar.