micronAir AU8500, Operator'S Handbook Manual

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7
MICRONAIR AU8500 ULV TREE SPRAYER
5. Drive into the downwind edge of the spray area. When ready to spray, set the
Pump switch to ON. The green Pump light should illuminate.
IMPORTANT: The pump will only operate (and the pump light illuminate) when
there is sufficient airflow from the blower. This is a safety feature to prevent
pesticide from being discharged from the atomiser when there is insufficient
airflow to rotate the atomiser.
IMPORTANT: Pesticide must only be sprayed whilst the tractor is moving
within the spray area.
6. At the end of each spray pass, set the
Pump switch to OFF before turning onto
the next spray pass.
IMPORTANT: The pump must always be turned off at the end of each spray
pass before the tractor turns onto the next pass.
4.4. Spraying Technique
The AU8500 tree sprayer uses a combination on a vertical airblast and the wind to
ensure even distribution of spray droplets within the tree canopy. The following
points should be noted in for safe and effective application:
Spraying should never be carried out whilst there are people or animals in the
spray area.
The sprayer should not be used if the wind speed exceeds 5 m/sec. High wind
speeds will reduce the maximum height reached by the spray droplets.
The sprayer should preferably not be used in completely calm conditions. A wind
speed of greater than 1 m/sec is recommended. This ensures a sufficiently wide
swath of spray droplets in the tree canopy and also carries the spray clear of the
tractor and operator. This is particularly important if the tractor is not fitted with a
closed cab.
The direction of each spray pass should be at right-angles to the wind.
Spraying should start along the upwind edge of the spray area and successive
passes should be downwind of the first pass. This ensure that the sprayer is
always operating in an area that has not already been sprayed.
4.5. Emptying of Pesticide Tank
Whenever possible, only the amount of pesticide required for a job should be put into
the tank and all pesticide should be used within the spray area. However, if
pesticide remains at the end of a job, it should not be left in the tank. The procedure
to empty the tank is as follows:
1. Release the drain hose from its securing bracket.