6
MIXING, FILLING AND CALIBRATION
Mixing and filling is generally the most hazardous process in the spraying operation.
Always
follow the label instructions.
Always
use a filter (fitted in the Micron
Mi-
cropak
backpacks) and use a funnel if filling a container with a small neck.
Only
mix enough spray for the area to be treated thereby avoiding the need for disposal of
unused spray mix.
Always
wear gloves when handling
agrochemicals and equipment.
Always
use the correct equipment
when mixing and measuring.
Always
wash off any skin
contamination
Always
clean all equipment after
use.
With the HERBIFLEX-4 herbicides are usually applied in around 20 litres total spray
volume per hectare. The exception is glyphosate which can be applied at volumes as
low as 10 litres per hectare. These are lower volumes than recommended for high
volume application with knapsack sprayers. Use the minimum dose rate recom-
mended on the label for the intended treatment and add water to make up to the vol-
ume required for application with the HERBIFLEX-4.
15
TROUBLESHOOTING
A)
Atomiser disc spins but does not spray or sprays irregularly. Check:
- the feed nozzle. If the feed nozzle is blocked remove and soak in soapy
water.
Never
blow through the nozzle with your mouth.
- that the feed nozzle gives a flow rate within the operating range
- the atomiser disc is clean and undamaged. Clean or replace.
- the flow valve for blockage. Clean if necessary.
B)
Atomiser disc fails to spin or spins unevenly. Check:
- that the batteries are fitted correctly.
- the condition of the batteries. Replace if necessary.
- that electrical terminals and contact points are clean and that electrical wires
are not broken or corroded.
- the motor for corrosion or obvious signs of wear. Replace if necessary.
- the atomiser disc and atomiser cone housing are fitted correctly (see 'AFTER
SPRAYING - TO REFIT THE ATOMISER DISC').
N.B. Battery condition can be checked with a torch (or a torch light bulb and
electrical wire).
C)
Spray liquid spills from the atomiser cone during spraying:
- angle of the spray head to the ground is too great - reduce the angle.
- flow rate too high - fit feed nozzle with lower flow rate and reduce walking
speed accordingly.
